C#數字格式化輸出)

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• C#數字格式化輸出

C#數字格式化輸出

int a = 12345678; //格式為sring輸出 Label1.Text = string.Format("asdfadsf{0}adsfasdf",a); Label2.Text = "asdfadsf"+a.ToString()+"adsfasdf"; Label1.Text = string.Format("asdfadsf{0:C}adsfasdf",a);//asdfadsf￥1,234.00adsfasdf Label2.Text = "asdfadsf"+a.ToString("C")+"adsfasdf";//asdfadsf￥1,234.00adsfasdf double b = 1234.12543; int a = 12345678; //格式為特殊的string樣式輸出 Label1.Text = string.Format("asdfadsf{0:C}adsfasdf",b);//asdfadsf￥1,234.13adsfasdf Label2.Text = "asdfadsf"+b.ToString("C")+"adsfasdf";//asdfadsf￥1,234.13adsfasdf Label1.Text = string.Format("{0:C3}",b);//￥1,234.125 Label2.Text = b.ToString("C3");//￥1,234.125 Label1.Text = string.Format("{0:d}",a);//十進位--12345678 Label2.Text = b.ToString("d");//十進位--相同的類型，轉換報錯 Label1.Text = string.Format("{0:e}",a);//指數--1.234568e+007 Label2.Text = b.ToString("e");//指數--1.234125e+003 Label1.Text = string.Format("{0:f}",a);//定點數--12345678.00 Label2.Text = b.ToString("f");//定點數--1234.13 Label1.Text = string.Format("{0:n}",a);//數值--12,345,678.00 Label2.Text = b.ToString("n");//數值--1,234.13 Label1.Text = string.Format("{0:x}",a);//十六進位--bc614e Label2.Text = b.ToString("x");//16--帶有小數不能轉換，出錯 Label1.Text = string.Format("{0:g}",a);//通用為最緊湊--12345678 Label2.Text = b.ToString("g");//通用為最緊湊--1234.12543 Label1.Text = string.Format("{0:r}",a);//轉來轉去不損失精度--整數不允許用，報錯 Label2.Text = b.ToString("r");//轉來轉去不損失精度--1234.12543 double b = 4321.12543; int a = 1234; 自訂模式輸出： //"0"描述：預留位置，如果可能，填充位 Label1.Text = string.Format("{0:000000}",a);// 001234 Label2.Text = string.Format("{0:000000}",b);// 004321 //"#"描述：預留位置，如果可能，填充位 Label1.Text = string.Format("{0:#######}",a);// 1234 Label2.Text = string.Format("{0:#######}",b);// 4321 Label1.Text = string.Format("{0:#0####}",a);// 01234 Label2.Text = string.Format("{0:0#0000}",b);// 004321 //"."描述：小數點 Label1.Text = string.Format("{0:000.000}",a);//1234.000 Label2.Text = string.Format("{0:000.000}",b);//4321.125 double b = 87654321.12543; int a = 12345678; //","描述：數字分組，也用於增倍器 Label1.Text = string.Format("{0:0,00}",a);// 12,345,678 Label2.Text = string.Format("{0:0,00}",b);// 87,654,32 Label1.Text = string.Format("{0:0,}",a);// 12346 Label2.Text = string.Format("{0:0,}",b);// 87654 Label1.Text = string.Format("{0:0,,}",a);// 12 Label2.Text = string.Format("{0:0,,}",b);// 88 Label1.Text = string.Format("{0:0,,,}",a);// 0 Label2.Text = string.Format("{0:0,,,}",b);// 0 //"%"描述：格式為百分數 Label1.Text = string.Format("{0:0%}",a);// 1234567800% Label2.Text = string.Format("{0:#%}",b);// 8765432113% Label1.Text = string.Format("{0:0.00%}",a);// 1234567800.00% Label2.Text = string.Format("{0:#.00%}",b);// 8765432112.54% //"abc"描述：顯示單引號內的文本 Label1.Text = string.Format("{0:'文本'0}",a);// 文本12345678 Label2.Text = string.Format("{0:文本0}",b);// 文本87654321 //"\"描述：後跟1要列印字的字元，也用於轉移符\n等 Label1.Text = string.Format("\"你好！\"");// "你好！" Label2.Text = string.Format("[url=file://\\c\\books\\new\\we.asp]\\c\\books\\new\\we.asp");//\c\books\new\we.asp //"@"描述：後跟要列印字的字元, Label1.Text = string.Format(@"""你好！"""); // "你好！"要列印"則需要輸入兩對才可以 Label2.Text = string.Format(@"\c\books\new\we.asp");//\c\books\new\we.asp

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