C# 格式化字符串 String.Format

[C#]

double MyPos = 19.95, MyNeg = -19.95, MyZero = 0.0;

string MyString = MyPos.ToString("$#,##0.00;($#,##0.00);Zero");

// In the U.S. English culture, MyString has the value: $19.95.

MyString = MyNeg.ToString("$#,##0.00;($#,##0.00);Zero");

// In the U.S. English culture, MyString has the value: ($19.95).

// The minus sign is omitted by default.

MyString = MyZero.ToString("$#,##0.00;($#,##0.00);Zero");

// In the U.S. English culture, MyString has the value: Zero.

下面的示例说明自定义数字格式化。

[Visual Basic]

Dim myDouble As Double = 1234567890

Dim myString As String = myDouble.ToString( "(###) ### - ####" )

' The value of myString is "(123) 456 – 7890".

Dim MyInt As Integer = 42

MyString = MyInt.ToString( "My Number " + ControlChars.Lf + "= #" )

' In the U.S. English culture, MyString has the value: