Console.Write 方法
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
將指定值或值的文字表示寫入標準輸出數據流。
多載
| 名稱 | Description |
|---|---|
| Write(String, Object, Object, Object, Object) |
使用指定的格式資訊,將指定物件和可變長度參數清單的文字表示寫入標準輸出數據流。 |
| Write(String, Object, Object, Object) |
使用指定的格式資訊,將指定物件的文字表示寫入標準輸出數據流。 |
| Write(String, Object, Object) |
使用指定的格式資訊,將指定物件的文字表示寫入標準輸出數據流。 |
| Write(String, ReadOnlySpan<Object>) |
使用指定的格式資訊,將指定之物件範圍的文字表示寫入標準輸出數據流。 |
| Write(String, Object[]) |
使用指定的格式資訊,將指定物件數位的文字表示寫入標準輸出數據流。 |
| Write(String, Object) |
使用指定的格式資訊,將指定物件的文字表示寫入標準輸出數據流。 |
| Write(UInt64) |
將指定之 64 位無符號整數值的文字表示寫入標準輸出數據流。 |
| Write(UInt32) |
將指定之 32 位無符號整數值的文字表示寫入標準輸出數據流。 |
| Write(String) |
將指定的字串值寫入標準輸出數據流。 |
| Write(Char[], Int32, Int32) |
將指定的 Unicode 字元子陣列寫入標準輸出資料流。 |
| Write(ReadOnlySpan<Char>) | |
| Write(Single) |
將指定之單精度浮點值的文字表示寫入標準輸出數據流。 |
| Write(Char) |
將指定的 Unicode 字元值寫入標準輸出數據流。 |
| Write(Char[]) |
將指定的 Unicode 字元陣列寫入標準輸出數據流。 |
| Write(Decimal) |
將指定之 Decimal 值的文字表示寫入標準輸出數據流。 |
| Write(Boolean) |
將指定布爾值的文字表示寫入標準輸出數據流。 |
| Write(Int32) |
將指定之32位帶正負號整數值的文字表示寫入標準輸出數據流。 |
| Write(Int64) |
將指定之64位帶正負號整數值的文字表示寫入標準輸出數據流。 |
| Write(Object) |
將指定物件的文字表示寫入標準輸出數據流。 |
| Write(Double) |
將指定之雙精確度浮點值的文字表示寫入標準輸出數據流。 |
Write(String, Object, Object, Object, Object)
重要
此 API 不符合 CLS 規範。
使用指定的格式資訊,將指定物件和可變長度參數清單的文字表示寫入標準輸出數據流。
public:
static void Write(System::String ^ format, System::Object ^ arg0, System::Object ^ arg1, System::Object ^ arg2, System::Object ^ arg3);
[System.CLSCompliant(false)]
public static void Write(string format, object arg0, object arg1, object arg2, object arg3);
[<System.CLSCompliant(false)>]
static member Write : string * obj * obj * obj * obj -> unit
Public Shared Sub Write (format As String, arg0 As Object, arg1 As Object, arg2 As Object, arg3 As Object)
參數
- format
- String
複合格式字串。
- arg0
- Object
第一個用 寫入 format的物件。
- arg1
- Object
第二個用 的物件是用 format。
- arg2
- Object
第三個用 format來寫的物件。
- arg3
- Object
第四個用 format寫入的物件。
- 屬性
例外狀況
發生 I/O 錯誤。
format 是 null。
格式規範在 中 format 是無效的。
範例
下列範例說明搭配 Write(String, Object, Object, Object, Object) 方法使用變數參數。 方法會使用複合格式字串和五個格式專案來呼叫。
備註
Note
此 API 不符合 CLS 規範。 符合 CLS 標準的替代方案為 Console.Write(String, Object[])。 C# 與 Visual Basic 編譯器會自動解析對此方法的呼叫 Console.Write(String, Object[])。
此方法利用 .NET 的 複合格式化功能 ,將物件的值轉換為其文字表示,並將該表示嵌入字串中。 產生的字串會寫入輸出數據流。
參數 format 由零段或多段文字串連,與零或多個索引佔位符(稱為格式項)混合組成,這些佔位符對應於此方法參數列表中的物件。 格式化程式會將每個格式專案取代為對應物件的文字表示。
格式項目的語法為 {index[,alignment][:formatString]},指定強制索引、格式化文字的可選長度與對齊,以及一串可選的格式指定字元字串,用以控制對應物件值的格式化。
.NET 提供廣泛的格式支援,如下列格式化主題中更詳細地說明。
關於由 FormatAppendFormat、 及某些 的超載WriteLine方法所支援的複合格式功能,請參見 Composite Formatting。
欲了解更多日期與時間格式指定符的資訊,請參閱 標準日期與時間格式字串 及 自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊,請參見列 舉格式字串。
欲了解更多格式相關資訊,請參閱 格式類型。
給呼叫者的注意事項
此方法標示為 vararg 關鍵字,表示支援可變數量的參數。 方法可以從 Visual C++呼叫,但無法從 C# 或 Visual Basic 程式代碼呼叫。 C# 與 Visual Basic 編譯器將 的Write(String, Object, Object, Object, Object)呼叫解析為 。Write(String, Object[])
另請參閱
適用於
Write(String, Object, Object, Object)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
使用指定的格式資訊,將指定物件的文字表示寫入標準輸出數據流。
public:
static void Write(System::String ^ format, System::Object ^ arg0, System::Object ^ arg1, System::Object ^ arg2);
public static void Write(string format, object? arg0, object? arg1, object? arg2);
public static void Write(string format, object arg0, object arg1, object arg2);
static member Write : string * obj * obj * obj -> unit
Public Shared Sub Write (format As String, arg0 As Object, arg1 As Object, arg2 As Object)
參數
- format
- String
複合格式字串。
- arg0
- Object
第一個用 寫入 format的物件。
- arg1
- Object
第二個用 的物件是用 format。
- arg2
- Object
第三個用 format來寫的物件。
例外狀況
發生 I/O 錯誤。
format 是 null。
格式規範在 中 format 是無效的。
範例
下列範例會使用 WriteLine 方法來示範數位、日期和列舉的標準格式規範。
// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.
using System;
class Sample
{
enum Color {Yellow = 1, Blue, Green};
static DateTime thisDate = DateTime.Now;
public static void Main()
{
Console.Clear();
// Format a negative integer or floating-point number in various ways.
Console.WriteLine("Standard Numeric Format Specifiers");
Console.WriteLine(
"(C) Currency: . . . . . . . . {0:C}\n" +
"(D) Decimal:. . . . . . . . . {0:D}\n" +
"(E) Scientific: . . . . . . . {1:E}\n" +
"(F) Fixed point:. . . . . . . {1:F}\n" +
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(N) Number: . . . . . . . . . {0:N}\n" +
"(P) Percent:. . . . . . . . . {1:P}\n" +
"(R) Round-trip: . . . . . . . {1:R}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
-123, -123.45f);
// Format the current date in various ways.
Console.WriteLine("Standard DateTime Format Specifiers");
Console.WriteLine(
"(d) Short date: . . . . . . . {0:d}\n" +
"(D) Long date:. . . . . . . . {0:D}\n" +
"(t) Short time: . . . . . . . {0:t}\n" +
"(T) Long time:. . . . . . . . {0:T}\n" +
"(f) Full date/short time: . . {0:f}\n" +
"(F) Full date/long time:. . . {0:F}\n" +
"(g) General date/short time:. {0:g}\n" +
"(G) General date/long time: . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(M) Month:. . . . . . . . . . {0:M}\n" +
"(R) RFC1123:. . . . . . . . . {0:R}\n" +
"(s) Sortable: . . . . . . . . {0:s}\n" +
"(u) Universal sortable: . . . {0:u} (invariant)\n" +
"(U) Universal full date/time: {0:U}\n" +
"(Y) Year: . . . . . . . . . . {0:Y}\n",
thisDate);
// Format a Color enumeration value in various ways.
Console.WriteLine("Standard Enumeration Format Specifiers");
Console.WriteLine(
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
"(D) Decimal number: . . . . . {0:D}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
Color.Green);
}
}
/*
This code example produces the following results:
Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
(default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85
Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
(default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004
Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
(default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003
*/
// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.
open System
type Color =
| Yellow = 1
| Blue = 2
| Green = 3
let thisDate = DateTime.Now
Console.Clear()
// Format a negative integer or floating-point number in various ways.
Console.WriteLine "Standard Numeric Format Specifiers"
Console.WriteLine(
"(C) Currency: . . . . . . . . {0:C}\n" +
"(D) Decimal:. . . . . . . . . {0:D}\n" +
"(E) Scientific: . . . . . . . {1:E}\n" +
"(F) Fixed point:. . . . . . . {1:F}\n" +
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(N) Number: . . . . . . . . . {0:N}\n" +
"(P) Percent:. . . . . . . . . {1:P}\n" +
"(R) Round-trip: . . . . . . . {1:R}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
-123, -123.45f)
// Format the current date in various ways.
Console.WriteLine "Standard DateTime Format Specifiers"
Console.WriteLine(
"(d) Short date: . . . . . . . {0:d}\n" +
"(D) Long date:. . . . . . . . {0:D}\n" +
"(t) Short time: . . . . . . . {0:t}\n" +
"(T) Long time:. . . . . . . . {0:T}\n" +
"(f) Full date/short time: . . {0:f}\n" +
"(F) Full date/long time:. . . {0:F}\n" +
"(g) General date/short time:. {0:g}\n" +
"(G) General date/long time: . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(M) Month:. . . . . . . . . . {0:M}\n" +
"(R) RFC1123:. . . . . . . . . {0:R}\n" +
"(s) Sortable: . . . . . . . . {0:s}\n" +
"(u) Universal sortable: . . . {0:u} (invariant)\n" +
"(U) Universal full date/time: {0:U}\n" +
"(Y) Year: . . . . . . . . . . {0:Y}\n",
thisDate)
// Format a Color enumeration value in various ways.
Console.WriteLine "Standard Enumeration Format Specifiers"
Console.WriteLine(
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
"(D) Decimal number: . . . . . {0:D}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
Color.Green)
// This code example produces the following results:
//
// Standard Numeric Format Specifiers
// (C) Currency: . . . . . . . . ($123.00)
// (D) Decimal:. . . . . . . . . -123
// (E) Scientific: . . . . . . . -1.234500E+002
// (F) Fixed point:. . . . . . . -123.45
// (G) General:. . . . . . . . . -123
// (default):. . . . . . . . -123 (default = 'G')
// (N) Number: . . . . . . . . . -123.00
// (P) Percent:. . . . . . . . . -12,345.00 %
// (R) Round-trip: . . . . . . . -123.45
// (X) Hexadecimal:. . . . . . . FFFFFF85
//
// Standard DateTime Format Specifiers
// (d) Short date: . . . . . . . 6/26/2004
// (D) Long date:. . . . . . . . Saturday, June 26, 2004
// (t) Short time: . . . . . . . 8:11 PM
// (T) Long time:. . . . . . . . 8:11:04 PM
// (f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
// (F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
// (g) General date/short time:. 6/26/2004 8:11 PM
// (G) General date/long time: . 6/26/2004 8:11:04 PM
// (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
// (M) Month:. . . . . . . . . . June 26
// (R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
// (s) Sortable: . . . . . . . . 2004-06-26T20:11:04
// (u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
// (U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
// (Y) Year: . . . . . . . . . . June, 2004
//
// Standard Enumeration Format Specifiers
// (G) General:. . . . . . . . . Green
// (default):. . . . . . . . Green (default = 'G')
// (F) Flags:. . . . . . . . . . Green (flags or integer)
// (D) Decimal number: . . . . . 3
// (X) Hexadecimal:. . . . . . . 00000003
' This code example demonstrates the Console.WriteLine() method.
' Formatting for this example uses the "en-US" culture.
Class Sample
Public Enum Color
Yellow = 1
Blue = 2
Green = 3
End Enum 'Color
Private Shared thisDate As DateTime = DateTime.Now
Public Shared Sub Main()
Console.Clear()
' Format a negative integer or floating-point number in various ways.
Console.WriteLine("Standard Numeric Format Specifiers")
Console.WriteLine("(C) Currency: . . . . . . . . {0:C}" & vbCrLf & _
"(D) Decimal:. . . . . . . . . {0:D}" & vbCrLf & _
"(E) Scientific: . . . . . . . {1:E}" & vbCrLf & _
"(F) Fixed point:. . . . . . . {1:F}" & vbCrLf & _
"(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
" (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
"(N) Number: . . . . . . . . . {0:N}" & vbCrLf & _
"(P) Percent:. . . . . . . . . {1:P}" & vbCrLf & _
"(R) Round-trip: . . . . . . . {1:R}" & vbCrLf & _
"(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
- 123, - 123.45F)
' Format the current date in various ways.
Console.WriteLine("Standard DateTime Format Specifiers")
Console.WriteLine("(d) Short date: . . . . . . . {0:d}" & vbCrLf & _
"(D) Long date:. . . . . . . . {0:D}" & vbCrLf & _
"(t) Short time: . . . . . . . {0:t}" & vbCrLf & _
"(T) Long time:. . . . . . . . {0:T}" & vbCrLf & _
"(f) Full date/short time: . . {0:f}" & vbCrLf & _
"(F) Full date/long time:. . . {0:F}" & vbCrLf & _
"(g) General date/short time:. {0:g}" & vbCrLf & _
"(G) General date/long time: . {0:G}" & vbCrLf & _
" (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
"(M) Month:. . . . . . . . . . {0:M}" & vbCrLf & _
"(R) RFC1123:. . . . . . . . . {0:R}" & vbCrLf & _
"(s) Sortable: . . . . . . . . {0:s}" & vbCrLf & _
"(u) Universal sortable: . . . {0:u} (invariant)" & vbCrLf & _
"(U) Universal full date/time: {0:U}" & vbCrLf & _
"(Y) Year: . . . . . . . . . . {0:Y}" & vbCrLf, _
thisDate)
' Format a Color enumeration value in various ways.
Console.WriteLine("Standard Enumeration Format Specifiers")
Console.WriteLine("(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
" (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)" & vbCrLf & _
"(D) Decimal number: . . . . . {0:D}" & vbCrLf & _
"(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
Color.Green)
End Sub
End Class
'
'This code example produces the following results:
'
'Standard Numeric Format Specifiers
'(C) Currency: . . . . . . . . ($123.00)
'(D) Decimal:. . . . . . . . . -123
'(E) Scientific: . . . . . . . -1.234500E+002
'(F) Fixed point:. . . . . . . -123.45
'(G) General:. . . . . . . . . -123
' (default):. . . . . . . . -123 (default = 'G')
'(N) Number: . . . . . . . . . -123.00
'(P) Percent:. . . . . . . . . -12,345.00 %
'(R) Round-trip: . . . . . . . -123.45
'(X) Hexadecimal:. . . . . . . FFFFFF85
'
'Standard DateTime Format Specifiers
'(d) Short date: . . . . . . . 6/26/2004
'(D) Long date:. . . . . . . . Saturday, June 26, 2004
'(t) Short time: . . . . . . . 8:11 PM
'(T) Long time:. . . . . . . . 8:11:04 PM
'(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
'(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
'(g) General date/short time:. 6/26/2004 8:11 PM
'(G) General date/long time: . 6/26/2004 8:11:04 PM
' (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
'(M) Month:. . . . . . . . . . June 26
'(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
'(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
'(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
'(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
'(Y) Year: . . . . . . . . . . June, 2004
'
'Standard Enumeration Format Specifiers
'(G) General:. . . . . . . . . Green
' (default):. . . . . . . . Green (default = 'G')
'(F) Flags:. . . . . . . . . . Green (flags or integer)
'(D) Decimal number: . . . . . 3
'(X) Hexadecimal:. . . . . . . 00000003
'
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
此方法利用 .NET 的 複合格式化功能 ,將物件的值轉換為其文字表示,並將該表示嵌入字串中。 產生的字串會寫入輸出數據流。
參數 format 由零段或多段文字串連,與零或多個索引佔位符(稱為格式項)混合組成,這些佔位符對應於此方法參數列表中的物件。 格式化程式會將每個格式專案取代為對應物件的文字表示。
格式項目的語法為 {index[,alignment][:formatString]},指定強制索引、格式化文字的可選長度與對齊,以及一串可選的格式指定字元字串,用以控制對應物件值的格式化。
.NET 提供廣泛的格式支援,如下列格式化主題中更詳細地說明。
關於由 FormatAppendFormat、 及某些 的超載WriteLine方法所支援的複合格式功能,請參見 Composite Formatting。
欲了解更多日期與時間格式指定符的資訊,請參閱 標準日期與時間格式字串 及 自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊,請參見列 舉格式字串。
欲了解更多格式相關資訊,請參閱 格式類型。
另請參閱
適用於
Write(String, Object, Object)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
使用指定的格式資訊,將指定物件的文字表示寫入標準輸出數據流。
public:
static void Write(System::String ^ format, System::Object ^ arg0, System::Object ^ arg1);
public static void Write(string format, object? arg0, object? arg1);
public static void Write(string format, object arg0, object arg1);
static member Write : string * obj * obj -> unit
Public Shared Sub Write (format As String, arg0 As Object, arg1 As Object)
參數
- format
- String
複合格式字串。
- arg0
- Object
第一個用 寫入 format的物件。
- arg1
- Object
第二個用 的物件是用 format。
例外狀況
發生 I/O 錯誤。
format 是 null。
格式規範在 中 format 是無效的。
範例
下列範例會使用 WriteLine 方法來示範數位、日期和列舉的標準格式規範。
// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.
using System;
class Sample
{
enum Color {Yellow = 1, Blue, Green};
static DateTime thisDate = DateTime.Now;
public static void Main()
{
Console.Clear();
// Format a negative integer or floating-point number in various ways.
Console.WriteLine("Standard Numeric Format Specifiers");
Console.WriteLine(
"(C) Currency: . . . . . . . . {0:C}\n" +
"(D) Decimal:. . . . . . . . . {0:D}\n" +
"(E) Scientific: . . . . . . . {1:E}\n" +
"(F) Fixed point:. . . . . . . {1:F}\n" +
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(N) Number: . . . . . . . . . {0:N}\n" +
"(P) Percent:. . . . . . . . . {1:P}\n" +
"(R) Round-trip: . . . . . . . {1:R}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
-123, -123.45f);
// Format the current date in various ways.
Console.WriteLine("Standard DateTime Format Specifiers");
Console.WriteLine(
"(d) Short date: . . . . . . . {0:d}\n" +
"(D) Long date:. . . . . . . . {0:D}\n" +
"(t) Short time: . . . . . . . {0:t}\n" +
"(T) Long time:. . . . . . . . {0:T}\n" +
"(f) Full date/short time: . . {0:f}\n" +
"(F) Full date/long time:. . . {0:F}\n" +
"(g) General date/short time:. {0:g}\n" +
"(G) General date/long time: . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(M) Month:. . . . . . . . . . {0:M}\n" +
"(R) RFC1123:. . . . . . . . . {0:R}\n" +
"(s) Sortable: . . . . . . . . {0:s}\n" +
"(u) Universal sortable: . . . {0:u} (invariant)\n" +
"(U) Universal full date/time: {0:U}\n" +
"(Y) Year: . . . . . . . . . . {0:Y}\n",
thisDate);
// Format a Color enumeration value in various ways.
Console.WriteLine("Standard Enumeration Format Specifiers");
Console.WriteLine(
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
"(D) Decimal number: . . . . . {0:D}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
Color.Green);
}
}
/*
This code example produces the following results:
Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
(default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85
Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
(default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004
Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
(default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003
*/
// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.
open System
type Color =
| Yellow = 1
| Blue = 2
| Green = 3
let thisDate = DateTime.Now
Console.Clear()
// Format a negative integer or floating-point number in various ways.
Console.WriteLine "Standard Numeric Format Specifiers"
Console.WriteLine(
"(C) Currency: . . . . . . . . {0:C}\n" +
"(D) Decimal:. . . . . . . . . {0:D}\n" +
"(E) Scientific: . . . . . . . {1:E}\n" +
"(F) Fixed point:. . . . . . . {1:F}\n" +
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(N) Number: . . . . . . . . . {0:N}\n" +
"(P) Percent:. . . . . . . . . {1:P}\n" +
"(R) Round-trip: . . . . . . . {1:R}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
-123, -123.45f)
// Format the current date in various ways.
Console.WriteLine "Standard DateTime Format Specifiers"
Console.WriteLine(
"(d) Short date: . . . . . . . {0:d}\n" +
"(D) Long date:. . . . . . . . {0:D}\n" +
"(t) Short time: . . . . . . . {0:t}\n" +
"(T) Long time:. . . . . . . . {0:T}\n" +
"(f) Full date/short time: . . {0:f}\n" +
"(F) Full date/long time:. . . {0:F}\n" +
"(g) General date/short time:. {0:g}\n" +
"(G) General date/long time: . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(M) Month:. . . . . . . . . . {0:M}\n" +
"(R) RFC1123:. . . . . . . . . {0:R}\n" +
"(s) Sortable: . . . . . . . . {0:s}\n" +
"(u) Universal sortable: . . . {0:u} (invariant)\n" +
"(U) Universal full date/time: {0:U}\n" +
"(Y) Year: . . . . . . . . . . {0:Y}\n",
thisDate)
// Format a Color enumeration value in various ways.
Console.WriteLine "Standard Enumeration Format Specifiers"
Console.WriteLine(
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
"(D) Decimal number: . . . . . {0:D}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
Color.Green)
// This code example produces the following results:
//
// Standard Numeric Format Specifiers
// (C) Currency: . . . . . . . . ($123.00)
// (D) Decimal:. . . . . . . . . -123
// (E) Scientific: . . . . . . . -1.234500E+002
// (F) Fixed point:. . . . . . . -123.45
// (G) General:. . . . . . . . . -123
// (default):. . . . . . . . -123 (default = 'G')
// (N) Number: . . . . . . . . . -123.00
// (P) Percent:. . . . . . . . . -12,345.00 %
// (R) Round-trip: . . . . . . . -123.45
// (X) Hexadecimal:. . . . . . . FFFFFF85
//
// Standard DateTime Format Specifiers
// (d) Short date: . . . . . . . 6/26/2004
// (D) Long date:. . . . . . . . Saturday, June 26, 2004
// (t) Short time: . . . . . . . 8:11 PM
// (T) Long time:. . . . . . . . 8:11:04 PM
// (f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
// (F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
// (g) General date/short time:. 6/26/2004 8:11 PM
// (G) General date/long time: . 6/26/2004 8:11:04 PM
// (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
// (M) Month:. . . . . . . . . . June 26
// (R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
// (s) Sortable: . . . . . . . . 2004-06-26T20:11:04
// (u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
// (U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
// (Y) Year: . . . . . . . . . . June, 2004
//
// Standard Enumeration Format Specifiers
// (G) General:. . . . . . . . . Green
// (default):. . . . . . . . Green (default = 'G')
// (F) Flags:. . . . . . . . . . Green (flags or integer)
// (D) Decimal number: . . . . . 3
// (X) Hexadecimal:. . . . . . . 00000003
' This code example demonstrates the Console.WriteLine() method.
' Formatting for this example uses the "en-US" culture.
Class Sample
Public Enum Color
Yellow = 1
Blue = 2
Green = 3
End Enum 'Color
Private Shared thisDate As DateTime = DateTime.Now
Public Shared Sub Main()
Console.Clear()
' Format a negative integer or floating-point number in various ways.
Console.WriteLine("Standard Numeric Format Specifiers")
Console.WriteLine("(C) Currency: . . . . . . . . {0:C}" & vbCrLf & _
"(D) Decimal:. . . . . . . . . {0:D}" & vbCrLf & _
"(E) Scientific: . . . . . . . {1:E}" & vbCrLf & _
"(F) Fixed point:. . . . . . . {1:F}" & vbCrLf & _
"(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
" (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
"(N) Number: . . . . . . . . . {0:N}" & vbCrLf & _
"(P) Percent:. . . . . . . . . {1:P}" & vbCrLf & _
"(R) Round-trip: . . . . . . . {1:R}" & vbCrLf & _
"(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
- 123, - 123.45F)
' Format the current date in various ways.
Console.WriteLine("Standard DateTime Format Specifiers")
Console.WriteLine("(d) Short date: . . . . . . . {0:d}" & vbCrLf & _
"(D) Long date:. . . . . . . . {0:D}" & vbCrLf & _
"(t) Short time: . . . . . . . {0:t}" & vbCrLf & _
"(T) Long time:. . . . . . . . {0:T}" & vbCrLf & _
"(f) Full date/short time: . . {0:f}" & vbCrLf & _
"(F) Full date/long time:. . . {0:F}" & vbCrLf & _
"(g) General date/short time:. {0:g}" & vbCrLf & _
"(G) General date/long time: . {0:G}" & vbCrLf & _
" (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
"(M) Month:. . . . . . . . . . {0:M}" & vbCrLf & _
"(R) RFC1123:. . . . . . . . . {0:R}" & vbCrLf & _
"(s) Sortable: . . . . . . . . {0:s}" & vbCrLf & _
"(u) Universal sortable: . . . {0:u} (invariant)" & vbCrLf & _
"(U) Universal full date/time: {0:U}" & vbCrLf & _
"(Y) Year: . . . . . . . . . . {0:Y}" & vbCrLf, _
thisDate)
' Format a Color enumeration value in various ways.
Console.WriteLine("Standard Enumeration Format Specifiers")
Console.WriteLine("(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
" (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)" & vbCrLf & _
"(D) Decimal number: . . . . . {0:D}" & vbCrLf & _
"(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
Color.Green)
End Sub
End Class
'
'This code example produces the following results:
'
'Standard Numeric Format Specifiers
'(C) Currency: . . . . . . . . ($123.00)
'(D) Decimal:. . . . . . . . . -123
'(E) Scientific: . . . . . . . -1.234500E+002
'(F) Fixed point:. . . . . . . -123.45
'(G) General:. . . . . . . . . -123
' (default):. . . . . . . . -123 (default = 'G')
'(N) Number: . . . . . . . . . -123.00
'(P) Percent:. . . . . . . . . -12,345.00 %
'(R) Round-trip: . . . . . . . -123.45
'(X) Hexadecimal:. . . . . . . FFFFFF85
'
'Standard DateTime Format Specifiers
'(d) Short date: . . . . . . . 6/26/2004
'(D) Long date:. . . . . . . . Saturday, June 26, 2004
'(t) Short time: . . . . . . . 8:11 PM
'(T) Long time:. . . . . . . . 8:11:04 PM
'(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
'(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
'(g) General date/short time:. 6/26/2004 8:11 PM
'(G) General date/long time: . 6/26/2004 8:11:04 PM
' (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
'(M) Month:. . . . . . . . . . June 26
'(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
'(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
'(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
'(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
'(Y) Year: . . . . . . . . . . June, 2004
'
'Standard Enumeration Format Specifiers
'(G) General:. . . . . . . . . Green
' (default):. . . . . . . . Green (default = 'G')
'(F) Flags:. . . . . . . . . . Green (flags or integer)
'(D) Decimal number: . . . . . 3
'(X) Hexadecimal:. . . . . . . 00000003
'
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
此方法利用 .NET 的 複合格式化功能 ,將物件的值轉換為其文字表示,並將該表示嵌入字串中。 產生的字串會寫入輸出數據流。
參數 format 由零段或多段文字串連,與零或多個索引佔位符(稱為格式項)混合組成,這些佔位符對應於此方法參數列表中的物件。 格式化程式會將每個格式專案取代為對應物件的文字表示。
格式項目的語法為 {index[,alignment][:formatString]},指定強制索引、格式化文字的可選長度與對齊,以及一串可選的格式指定字元字串,用以控制對應物件值的格式化。
.NET 提供廣泛的格式支援,如下列格式化主題中更詳細地說明。
關於由 FormatAppendFormat、 及某些 的超載WriteLine方法所支援的複合格式功能,請參見 Composite Formatting。
欲了解更多日期與時間格式指定符的資訊,請參閱 標準日期與時間格式字串 及 自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊,請參見列 舉格式字串。
欲了解更多格式相關資訊,請參閱 格式類型。
另請參閱
適用於
Write(String, ReadOnlySpan<Object>)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
使用指定的格式資訊,將指定之物件範圍的文字表示寫入標準輸出數據流。
public:
static void Write(System::String ^ format, ReadOnlySpan<System::Object ^> arg);
public static void Write(string format, scoped ReadOnlySpan<object?> arg);
static member Write : string * ReadOnlySpan<obj> -> unit
Public Shared Sub Write (format As String, arg As ReadOnlySpan(Of Object))
參數
- format
- String
複合格式字串。
- arg
- ReadOnlySpan<Object>
使用格式寫入的物件範圍。
適用於
Write(String, Object[])
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
使用指定的格式資訊,將指定物件數位的文字表示寫入標準輸出數據流。
public:
static void Write(System::String ^ format, ... cli::array <System::Object ^> ^ arg);
public static void Write(string format, params object?[]? arg);
public static void Write(string format, params object[] arg);
static member Write : string * obj[] -> unit
Public Shared Sub Write (format As String, ParamArray arg As Object())
參數
- format
- String
複合格式字串。
- arg
- Object[]
一個用 format來寫入的物件陣列。
例外狀況
發生 I/O 錯誤。
format 或 arg 為 null。
格式規範在 中 format 是無效的。
範例
下列範例會定義具有數個屬性的 Person 類別,以提供人員的相關信息。 其 GetDescription 方法會傳回數位列,其中包含除了一個以外的所有屬性值。 然後,此範例會使用 GetDescription 方法傳回的陣列來顯示 Person 物件的值。
using System;
public class Person
{
public String Name { get; set; }
public DateTime BirthDate { get; set; }
public Double Height { get; set; }
public Double Weight { get; set; }
public Char Gender { get; set; }
public String Remarks { get; set; }
public object[] GetDescription()
{
return new object[] { Name, Gender, Height, Weight, BirthDate};
}
}
public class Example
{
public static void Main()
{
var p1 = new Person() { Name = "John", Gender = 'M',
BirthDate = new DateTime(1992, 5, 10),
Height = 73.5, Weight = 207 };
p1.Remarks = "Client since 1/3/2012";
Console.Write("{0}: {1}, born {4:d} Height {2} inches, Weight {3} lbs ",
p1.GetDescription());
if (String.IsNullOrEmpty(p1.Remarks))
Console.WriteLine();
else
Console.WriteLine("{1}Remarks: {0}", p1.Remarks,
Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth ?
"\n " : "");
}
}
// The example displays the following output:
// John: M, born 5/10/1992 Height 73.5 inches, Weight 207 lbs Remarks: Client since 1/3/2012
open System
type Person =
{ Name: string
BirthDate: DateOnly
Height: double
Weight: double
Gender: char
Remarks: string }
member this.GetDescription(): obj [] =
[| this.Name; this.Gender; this.Height; this.Weight; this.BirthDate |]
let p1 =
{ Name = "John"
Gender = 'M'
BirthDate = DateOnly(1992, 5, 10)
Height = 73.5
Weight = 207
Remarks = "Client since 1/3/2012" }
Console.Write("{0}: {1}, born {4:d} Height {2} inches, Weight {3} lbs ", p1.GetDescription())
if String.IsNullOrEmpty p1.Remarks then
Console.WriteLine()
else
Console.WriteLine $"""{if Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth then "\n " else ""}Remarks: {p1.Remarks}"""
// The example displays the following output:
// John: M, born 5/10/1992 Height 73.5 inches, Weight 207 lbs Remarks: Client since 1/3/2012
Public Class Person
Public Property Name As String
Public Property BirthDate As DateTime
Public Property Height As Double
Public Property Weight As Double
Public Property Gender As Char
Public Property Remarks As String
Public Function GetDescription() As Object()
Return { Name, Gender, Height, Weight, BirthDate}
End Function
End Class
Module Example
Public Sub Main()
Dim p1 As New Person() With { .Name = "John", .Gender = "M"c,
.BirthDate = New DateTime(1992, 5, 10),
.Height = 73.5, .Weight = 207 }
p1.Remarks = "Client since 1/3/2012"
Console.Write("{0}: {1}, born {4:d} Height {2} inches, Weight {3} lbs ",
p1.GetDescription())
If String.IsNullOrEmpty(p1.Remarks) Then
Console.WriteLine()
Else
Console.WriteLine("{1}Remarks: {0}", p1.Remarks,
If(Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth,
vbCrLf + " ", ""))
End If
End Sub
End Module
' The example displays the following output:
' John: M, born 5/10/1992 Height 73.5 inches, Weight 207 lbs Remarks: Client since 1/3/2012
請注意,此範例會呼叫 Write(String, Object[]) 方法,而不是 WriteLine(String, Object[]) 方法,因為它嘗試在同一行上顯示 Person.Remarks 屬性的值。 若要這樣做,它會檢查 CursorLeft 和 WindowWidth 屬性的值,以判斷是否有足夠的空間讓備註符合。 如果有,則會顯示這一行。 如果沒有,它會寫入一行,縮排三個空格,並顯示備註。
下列範例與第一個範例相同,不同之處在於它會提供五個專案清單做為 arg 自變數,而不是參數數位。
using System;
public class Person
{
public String Name { get; set; }
public DateTime BirthDate { get; set; }
public Double Height { get; set; }
public Double Weight { get; set; }
public Char Gender { get; set; }
public String Remarks { get; set; }
public object[] GetDescription()
{
return new object[] { Name, Gender, Height, Weight, BirthDate};
}
}
public class Example
{
public static void Main()
{
var p1 = new Person() { Name = "John", Gender = 'M',
BirthDate = new DateTime(1992, 5, 10),
Height = 73.5, Weight = 207 };
p1.Remarks = "Client since 1/3/2012";
Console.Write("{0}: {1}, born {2:d} Height {3} inches, Weight {4} lbs ",
p1.Name, p1.Gender, p1.BirthDate, p1.Height, p1.Weight);
if (String.IsNullOrEmpty(p1.Remarks))
Console.WriteLine();
else
Console.WriteLine("{1}Remarks: {0}", p1.Remarks,
Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth ?
"\n " : "");
}
}
// The example displays the following output:
// John: M, born 5/10/1992 Height 73.5 inches, Weight 207 lbs Remarks: Client since 1/3/2012
open System
type Person =
{ Name: string
BirthDate: DateOnly
Height: double
Weight: double
Gender: char
Remarks: string }
member this.GetDescription(): obj [] =
[| this.Name; this.Gender; this.Height; this.Weight; this.BirthDate |]
let p1 =
{ Name = "John"
Gender = 'M'
BirthDate = DateOnly(1992, 5, 10)
Height = 73.5
Weight = 207
Remarks = "Client since 1/3/2012" }
printf $"{p1.Name}: {p1.Gender}, born {p1.BirthDate:d} Height {p1.Height} inches, Weight {p1.Weight} lbs "
if String.IsNullOrEmpty p1.Remarks then
Console.WriteLine()
else
Console.WriteLine $"""{if Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth then "\n " else ""}Remarks: {p1.Remarks}"""
// The example displays the following output:
// John: M, born 5/10/1992 Height 73.5 inches, Weight 207 lbs Remarks: Client since 1/3/2012
Public Class Person
Public Property Name As String
Public Property BirthDate As DateTime
Public Property Height As Double
Public Property Weight As Double
Public Property Gender As Char
Public Property Remarks As String
Public Function GetDescription() As Object()
Return { Name, Gender, Height, Weight, BirthDate}
End Function
End Class
Module Example
Public Sub Main()
Dim p1 As New Person() With { .Name = "John", .Gender = "M"c,
.BirthDate = New DateTime(1992, 5, 10),
.Height = 73.5, .Weight = 207 }
p1.Remarks = "Client since 1/3/2012"
Console.Write("{0}: {1}, born {2:d} Height {3} inches, Weight {4} lbs ",
p1.Name, p1.Gender, p1.BirthDate, p1.Height, p1.Weight)
If String.IsNullOrEmpty(p1.Remarks) Then
Console.WriteLine()
Else
Console.WriteLine("{1}Remarks: {0}", p1.Remarks,
If(Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth,
vbCrLf + " ", ""))
End If
End Sub
End Module
' The example displays the following output:
' John: M, born 5/10/1992 Height 73.5 inches, Weight 207 lbs Remarks: Client since 1/3/2012
備註
此方法利用 .NET 的 複合格式化功能 ,將物件的值轉換為其文字表示,並將該表示嵌入字串中。 產生的字串會寫入輸出數據流。
參數 format 由零段或多段文字串連,與零或多個索引佔位符(稱為格式項)混合組成,這些佔位符對應於此方法參數列表中的物件。 格式化程式會將每個格式專案取代為對應物件的文字表示。
格式項目的語法為 {index[,alignment][:formatString]},指定強制索引、格式化文字的可選長度與對齊,以及一串可選的格式指定字元字串,用以控制對應物件值的格式化。
.NET 提供廣泛的格式支援,如下列格式化主題中更詳細地說明。
關於由 FormatAppendFormat、 及某些 的超載WriteLine方法所支援的複合格式功能,請參見 Composite Formatting。
欲了解更多日期與時間格式指定符的資訊,請參閱 標準日期與時間格式字串 及 自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊,請參見列 舉格式字串。
欲了解更多格式相關資訊,請參閱 格式類型。
arg 參數是參數陣列。 自變數可以當做陣列或五個以上的專案清單傳遞至方法。 這些範例說明這兩種形式的方法呼叫。
給呼叫者的注意事項
C++程式代碼不會呼叫這個方法。 C++編譯程式會解析對 System.Console.Write 的呼叫,其中包含字串和四個以上物件參數的清單,做為對 Write(String, Object, Object, Object, Object)的呼叫。 它會解析 System.Console.Write 的呼叫,其中包含字串和物件陣列,以呼叫 Write(String, Object)。
另請參閱
適用於
Write(String, Object)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
使用指定的格式資訊,將指定物件的文字表示寫入標準輸出數據流。
public:
static void Write(System::String ^ format, System::Object ^ arg0);
public static void Write(string format, object? arg0);
public static void Write(string format, object arg0);
static member Write : string * obj -> unit
Public Shared Sub Write (format As String, arg0 As Object)
參數
- format
- String
複合格式字串。
- arg0
- Object
一個用來寫入 format的物件。
例外狀況
發生 I/O 錯誤。
format 是 null。
格式規範在 中 format 是無效的。
範例
下列範例會使用 WriteLine 方法來示範數位、日期和列舉的標準格式規範。
// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.
using System;
class Sample
{
enum Color {Yellow = 1, Blue, Green};
static DateTime thisDate = DateTime.Now;
public static void Main()
{
Console.Clear();
// Format a negative integer or floating-point number in various ways.
Console.WriteLine("Standard Numeric Format Specifiers");
Console.WriteLine(
"(C) Currency: . . . . . . . . {0:C}\n" +
"(D) Decimal:. . . . . . . . . {0:D}\n" +
"(E) Scientific: . . . . . . . {1:E}\n" +
"(F) Fixed point:. . . . . . . {1:F}\n" +
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(N) Number: . . . . . . . . . {0:N}\n" +
"(P) Percent:. . . . . . . . . {1:P}\n" +
"(R) Round-trip: . . . . . . . {1:R}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
-123, -123.45f);
// Format the current date in various ways.
Console.WriteLine("Standard DateTime Format Specifiers");
Console.WriteLine(
"(d) Short date: . . . . . . . {0:d}\n" +
"(D) Long date:. . . . . . . . {0:D}\n" +
"(t) Short time: . . . . . . . {0:t}\n" +
"(T) Long time:. . . . . . . . {0:T}\n" +
"(f) Full date/short time: . . {0:f}\n" +
"(F) Full date/long time:. . . {0:F}\n" +
"(g) General date/short time:. {0:g}\n" +
"(G) General date/long time: . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(M) Month:. . . . . . . . . . {0:M}\n" +
"(R) RFC1123:. . . . . . . . . {0:R}\n" +
"(s) Sortable: . . . . . . . . {0:s}\n" +
"(u) Universal sortable: . . . {0:u} (invariant)\n" +
"(U) Universal full date/time: {0:U}\n" +
"(Y) Year: . . . . . . . . . . {0:Y}\n",
thisDate);
// Format a Color enumeration value in various ways.
Console.WriteLine("Standard Enumeration Format Specifiers");
Console.WriteLine(
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
"(D) Decimal number: . . . . . {0:D}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
Color.Green);
}
}
/*
This code example produces the following results:
Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
(default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85
Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
(default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004
Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
(default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003
*/
// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.
open System
type Color =
| Yellow = 1
| Blue = 2
| Green = 3
let thisDate = DateTime.Now
Console.Clear()
// Format a negative integer or floating-point number in various ways.
Console.WriteLine "Standard Numeric Format Specifiers"
Console.WriteLine(
"(C) Currency: . . . . . . . . {0:C}\n" +
"(D) Decimal:. . . . . . . . . {0:D}\n" +
"(E) Scientific: . . . . . . . {1:E}\n" +
"(F) Fixed point:. . . . . . . {1:F}\n" +
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(N) Number: . . . . . . . . . {0:N}\n" +
"(P) Percent:. . . . . . . . . {1:P}\n" +
"(R) Round-trip: . . . . . . . {1:R}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
-123, -123.45f)
// Format the current date in various ways.
Console.WriteLine "Standard DateTime Format Specifiers"
Console.WriteLine(
"(d) Short date: . . . . . . . {0:d}\n" +
"(D) Long date:. . . . . . . . {0:D}\n" +
"(t) Short time: . . . . . . . {0:t}\n" +
"(T) Long time:. . . . . . . . {0:T}\n" +
"(f) Full date/short time: . . {0:f}\n" +
"(F) Full date/long time:. . . {0:F}\n" +
"(g) General date/short time:. {0:g}\n" +
"(G) General date/long time: . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(M) Month:. . . . . . . . . . {0:M}\n" +
"(R) RFC1123:. . . . . . . . . {0:R}\n" +
"(s) Sortable: . . . . . . . . {0:s}\n" +
"(u) Universal sortable: . . . {0:u} (invariant)\n" +
"(U) Universal full date/time: {0:U}\n" +
"(Y) Year: . . . . . . . . . . {0:Y}\n",
thisDate)
// Format a Color enumeration value in various ways.
Console.WriteLine "Standard Enumeration Format Specifiers"
Console.WriteLine(
"(G) General:. . . . . . . . . {0:G}\n" +
" (default):. . . . . . . . {0} (default = 'G')\n" +
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
"(D) Decimal number: . . . . . {0:D}\n" +
"(X) Hexadecimal:. . . . . . . {0:X}\n",
Color.Green)
// This code example produces the following results:
//
// Standard Numeric Format Specifiers
// (C) Currency: . . . . . . . . ($123.00)
// (D) Decimal:. . . . . . . . . -123
// (E) Scientific: . . . . . . . -1.234500E+002
// (F) Fixed point:. . . . . . . -123.45
// (G) General:. . . . . . . . . -123
// (default):. . . . . . . . -123 (default = 'G')
// (N) Number: . . . . . . . . . -123.00
// (P) Percent:. . . . . . . . . -12,345.00 %
// (R) Round-trip: . . . . . . . -123.45
// (X) Hexadecimal:. . . . . . . FFFFFF85
//
// Standard DateTime Format Specifiers
// (d) Short date: . . . . . . . 6/26/2004
// (D) Long date:. . . . . . . . Saturday, June 26, 2004
// (t) Short time: . . . . . . . 8:11 PM
// (T) Long time:. . . . . . . . 8:11:04 PM
// (f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
// (F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
// (g) General date/short time:. 6/26/2004 8:11 PM
// (G) General date/long time: . 6/26/2004 8:11:04 PM
// (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
// (M) Month:. . . . . . . . . . June 26
// (R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
// (s) Sortable: . . . . . . . . 2004-06-26T20:11:04
// (u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
// (U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
// (Y) Year: . . . . . . . . . . June, 2004
//
// Standard Enumeration Format Specifiers
// (G) General:. . . . . . . . . Green
// (default):. . . . . . . . Green (default = 'G')
// (F) Flags:. . . . . . . . . . Green (flags or integer)
// (D) Decimal number: . . . . . 3
// (X) Hexadecimal:. . . . . . . 00000003
' This code example demonstrates the Console.WriteLine() method.
' Formatting for this example uses the "en-US" culture.
Class Sample
Public Enum Color
Yellow = 1
Blue = 2
Green = 3
End Enum 'Color
Private Shared thisDate As DateTime = DateTime.Now
Public Shared Sub Main()
Console.Clear()
' Format a negative integer or floating-point number in various ways.
Console.WriteLine("Standard Numeric Format Specifiers")
Console.WriteLine("(C) Currency: . . . . . . . . {0:C}" & vbCrLf & _
"(D) Decimal:. . . . . . . . . {0:D}" & vbCrLf & _
"(E) Scientific: . . . . . . . {1:E}" & vbCrLf & _
"(F) Fixed point:. . . . . . . {1:F}" & vbCrLf & _
"(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
" (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
"(N) Number: . . . . . . . . . {0:N}" & vbCrLf & _
"(P) Percent:. . . . . . . . . {1:P}" & vbCrLf & _
"(R) Round-trip: . . . . . . . {1:R}" & vbCrLf & _
"(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
- 123, - 123.45F)
' Format the current date in various ways.
Console.WriteLine("Standard DateTime Format Specifiers")
Console.WriteLine("(d) Short date: . . . . . . . {0:d}" & vbCrLf & _
"(D) Long date:. . . . . . . . {0:D}" & vbCrLf & _
"(t) Short time: . . . . . . . {0:t}" & vbCrLf & _
"(T) Long time:. . . . . . . . {0:T}" & vbCrLf & _
"(f) Full date/short time: . . {0:f}" & vbCrLf & _
"(F) Full date/long time:. . . {0:F}" & vbCrLf & _
"(g) General date/short time:. {0:g}" & vbCrLf & _
"(G) General date/long time: . {0:G}" & vbCrLf & _
" (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
"(M) Month:. . . . . . . . . . {0:M}" & vbCrLf & _
"(R) RFC1123:. . . . . . . . . {0:R}" & vbCrLf & _
"(s) Sortable: . . . . . . . . {0:s}" & vbCrLf & _
"(u) Universal sortable: . . . {0:u} (invariant)" & vbCrLf & _
"(U) Universal full date/time: {0:U}" & vbCrLf & _
"(Y) Year: . . . . . . . . . . {0:Y}" & vbCrLf, _
thisDate)
' Format a Color enumeration value in various ways.
Console.WriteLine("Standard Enumeration Format Specifiers")
Console.WriteLine("(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
" (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
"(F) Flags:. . . . . . . . . . {0:F} (flags or integer)" & vbCrLf & _
"(D) Decimal number: . . . . . {0:D}" & vbCrLf & _
"(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
Color.Green)
End Sub
End Class
'
'This code example produces the following results:
'
'Standard Numeric Format Specifiers
'(C) Currency: . . . . . . . . ($123.00)
'(D) Decimal:. . . . . . . . . -123
'(E) Scientific: . . . . . . . -1.234500E+002
'(F) Fixed point:. . . . . . . -123.45
'(G) General:. . . . . . . . . -123
' (default):. . . . . . . . -123 (default = 'G')
'(N) Number: . . . . . . . . . -123.00
'(P) Percent:. . . . . . . . . -12,345.00 %
'(R) Round-trip: . . . . . . . -123.45
'(X) Hexadecimal:. . . . . . . FFFFFF85
'
'Standard DateTime Format Specifiers
'(d) Short date: . . . . . . . 6/26/2004
'(D) Long date:. . . . . . . . Saturday, June 26, 2004
'(t) Short time: . . . . . . . 8:11 PM
'(T) Long time:. . . . . . . . 8:11:04 PM
'(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
'(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
'(g) General date/short time:. 6/26/2004 8:11 PM
'(G) General date/long time: . 6/26/2004 8:11:04 PM
' (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
'(M) Month:. . . . . . . . . . June 26
'(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
'(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
'(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
'(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
'(Y) Year: . . . . . . . . . . June, 2004
'
'Standard Enumeration Format Specifiers
'(G) General:. . . . . . . . . Green
' (default):. . . . . . . . Green (default = 'G')
'(F) Flags:. . . . . . . . . . Green (flags or integer)
'(D) Decimal number: . . . . . 3
'(X) Hexadecimal:. . . . . . . 00000003
'
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
這個方法會使用 .NET 的 複合格式功能,將物件的值轉換成其文字表示法,並將該表示法內嵌在字串中。 產生的字串會寫入輸出數據流。
參數 format 由零段或多段文字串連,與零或多個索引佔位符(稱為格式項)混合組成,這些佔位符對應於此方法參數列表中的物件。 格式化程式會將每個格式專案取代為對應物件的文字表示。
格式項目的語法為 {index[,alignment][:formatString]},指定強制索引、格式化文字的可選長度與對齊,以及一串可選的格式指定字元字串,用以控制對應物件值的格式化。
.NET 提供廣泛的格式支援,如下列格式化主題中更詳細地說明。
關於由 FormatAppendFormat、 及某些 的超載WriteLine方法所支援的複合格式功能,請參見 Composite Formatting。
欲了解更多日期與時間格式指定符的資訊,請參閱 標準日期與時間格式字串 及 自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊,請參見列 舉格式字串。
欲了解更多格式相關資訊,請參閱 格式類型。
另請參閱
適用於
Write(UInt64)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
重要
此 API 不符合 CLS 規範。
將指定之 64 位無符號整數值的文字表示寫入標準輸出數據流。
public:
static void Write(System::UInt64 value);
[System.CLSCompliant(false)]
public static void Write(ulong value);
[<System.CLSCompliant(false)>]
static member Write : uint64 -> unit
Public Shared Sub Write (value As ULong)
參數
- value
- UInt64
要寫入的值。
- 屬性
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
的 value 文字表示是透過呼叫該 UInt64.ToString 方法產生的。
另請參閱
適用於
Write(UInt32)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
重要
此 API 不符合 CLS 規範。
將指定之 32 位無符號整數值的文字表示寫入標準輸出數據流。
public:
static void Write(System::UInt32 value);
[System.CLSCompliant(false)]
public static void Write(uint value);
[<System.CLSCompliant(false)>]
static member Write : uint32 -> unit
Public Shared Sub Write (value As UInteger)
參數
- value
- UInt32
要寫入的值。
- 屬性
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
的 value 文字表示是透過呼叫該 UInt32.ToString 方法產生的。
另請參閱
適用於
Write(String)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定的字串值寫入標準輸出數據流。
public:
static void Write(System::String ^ value);
public static void Write(string? value);
public static void Write(string value);
static member Write : string -> unit
Public Shared Sub Write (value As String)
參數
- value
- String
要寫入的值。
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
如果 value 是 null,則不會寫入標準輸出數據流。
另請參閱
適用於
Write(Char[], Int32, Int32)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定的 Unicode 字元子陣列寫入標準輸出資料流。
public:
static void Write(cli::array <char> ^ buffer, int index, int count);
public static void Write(char[] buffer, int index, int count);
static member Write : char[] * int * int -> unit
Public Shared Sub Write (buffer As Char(), index As Integer, count As Integer)
參數
- buffer
- Char[]
Unicode 字元陣列。
- index
- Int32
起始位置。buffer
- count
- Int32
要寫入的字元數。
例外狀況
buffer 是 null。
index 或 count 小於零。
index 加指定 count 一個不在 buffer的局面。
發生 I/O 錯誤。
備註
此方法將 count 從 的位置 indexbuffer 開始的字元寫入標準輸出串流。
另請參閱
適用於
Write(ReadOnlySpan<Char>)
- 來源:
- Console.cs
- 來源:
- Console.cs
public:
static void Write(ReadOnlySpan<char> value);
public static void Write(ReadOnlySpan<char> value);
static member Write : ReadOnlySpan<char> -> unit
Public Shared Sub Write (value As ReadOnlySpan(Of Char))
參數
- value
- ReadOnlySpan<Char>
適用於
Write(Single)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定之單精度浮點值的文字表示寫入標準輸出數據流。
public:
static void Write(float value);
public static void Write(float value);
static member Write : single -> unit
Public Shared Sub Write (value As Single)
參數
- value
- Single
要寫入的值。
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
的 value 文字表示是透過呼叫該 Single.ToString 方法產生的。
另請參閱
適用於
Write(Char)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定的 Unicode 字元值寫入標準輸出數據流。
public:
static void Write(char value);
public static void Write(char value);
static member Write : char -> unit
Public Shared Sub Write (value As Char)
參數
- value
- Char
要寫入的值。
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
另請參閱
適用於
Write(Char[])
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定的 Unicode 字元陣列寫入標準輸出數據流。
public:
static void Write(cli::array <char> ^ buffer);
public static void Write(char[]? buffer);
public static void Write(char[] buffer);
static member Write : char[] -> unit
Public Shared Sub Write (buffer As Char())
參數
- buffer
- Char[]
Unicode 字元陣列。
例外狀況
發生 I/O 錯誤。
另請參閱
適用於
Write(Decimal)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定之 Decimal 值的文字表示寫入標準輸出數據流。
public:
static void Write(System::Decimal value);
public static void Write(decimal value);
static member Write : decimal -> unit
Public Shared Sub Write (value As Decimal)
參數
- value
- Decimal
要寫入的值。
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
value 的文字表示法是由呼叫 Decimal.ToString所產生。
另請參閱
適用於
Write(Boolean)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定布爾值的文字表示寫入標準輸出數據流。
public:
static void Write(bool value);
public static void Write(bool value);
static member Write : bool -> unit
Public Shared Sub Write (value As Boolean)
參數
- value
- Boolean
要寫入的值。
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
value 的文字表示是由呼叫 Boolean.ToString產生,其會輸出 Boolean.TrueString 或 Boolean.FalseString。
另請參閱
適用於
Write(Int32)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定之32位帶正負號整數值的文字表示寫入標準輸出數據流。
public:
static void Write(int value);
public static void Write(int value);
static member Write : int -> unit
Public Shared Sub Write (value As Integer)
參數
- value
- Int32
要寫入的值。
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
的 value 文字表示是透過呼叫該 Int32.ToString 方法產生的。
另請參閱
適用於
Write(Int64)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定之64位帶正負號整數值的文字表示寫入標準輸出數據流。
public:
static void Write(long value);
public static void Write(long value);
static member Write : int64 -> unit
Public Shared Sub Write (value As Long)
參數
- value
- Int64
要寫入的值。
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
的 value 文字表示是透過呼叫該 Int64.ToString 方法產生的。
另請參閱
適用於
Write(Object)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定物件的文字表示寫入標準輸出數據流。
public:
static void Write(System::Object ^ value);
public static void Write(object? value);
public static void Write(object value);
static member Write : obj -> unit
Public Shared Sub Write (value As Object)
參數
- value
- Object
要寫入的值,或 null。
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
如果 value 是 null,則不會寫入任何專案,也不會擲回任何例外狀況。 否則, ToString 會呼叫 的方法 value 來產生其字串表示,並將所得字串寫入標準輸出串流。
另請參閱
適用於
Write(Double)
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
- 來源:
- Console.cs
將指定之雙精確度浮點值的文字表示寫入標準輸出數據流。
public:
static void Write(double value);
public static void Write(double value);
static member Write : double -> unit
Public Shared Sub Write (value As Double)
參數
- value
- Double
要寫入的值。
例外狀況
發生 I/O 錯誤。
範例
以下範例說明此 Write 方法的使用。
public class FormatConverter
{
public static void Main(string[] args)
{
string lineInput;
while ((lineInput = Console.ReadLine()) != null)
{
string[] fields = lineInput.Split(new char[] {'\t'});
bool isFirstField = true;
foreach (var item in fields)
{
if (isFirstField)
isFirstField = false;
else
Console.Write(',');
// If the field represents a boolean, replace with a numeric representation.
bool itemBool;
if (Boolean.TryParse(item, out itemBool))
Console.Write(Convert.ToByte(itemBool));
else
Console.Write(item);
}
Console.WriteLine();
}
}
}
let mutable lineInput = Console.ReadLine()
while lineInput <> null do
let fields = lineInput.Split '\t'
let mutable isFirstField = true
for item in fields do
if isFirstField then
isFirstField <- false
else
Console.Write ','
// If the field represents a boolean, replace with a numeric representation.
match Boolean.TryParse item with
| true, itemBool ->
Console.Write(Convert.ToByte itemBool)
| _ ->
Console.Write item
Console.WriteLine()
Public Class FormatConverter
Public Shared Sub Main()
Dim lineInput As String = Console.ReadLine()
While Not lineInput Is Nothing
Dim fields As String() = lineInput.Split(ControlChars.Tab)
Dim isFirstField As Boolean = True
For Each item As String In fields
If isFirstField Then
isFirstField = False
Else
Console.Write(",")
End If
' If the field represents a boolean, replace with a numeric representation.
Dim itemBool As Boolean
If Boolean.TryParse(item, itemBool)
Console.Write(Convert.ToByte(itemBool))
Else
Console.Write(item)
End If
Next
Console.WriteLine()
lineInput = Console.ReadLine()
End While
End Sub
End Class
備註
的 value 文字表示是透過呼叫該 Double.ToString 方法產生的。