String.Format 格式化字符串(c#）

DataFormatString= "{0:C}" 货币，货币的格式取决于当前Thread中Culture的设置
DataFormatString= "{0:E}" 科学计数法
DataFormatString= "{0: P}" 百分比
DataFormatString= "{0:F?}" 小数点后几位
DataFormatString= "{0:d}" M/d/yyyy 如 10/30/2008
DataFormatString= "{0:f}" 长日期，短时间。dddd,MMMM dd,yyyy HH:mm aa 如, Monday， January30， 2008 10:00am
DataFormatString= "{0: D}" 长日期。dddd,MMMM dd,yyyy 如: Monday，January 30，2008
DataFormatString= "{0:F}" 长日期，长时间 dddd,MMMM dd,yyyy HH:mm:ss aa
DataFormatString= "{0: s}" ISO 标准时间。yyyy-MM-ddTHH:mm:ss,如: 2008-01-30T10:20:55am
DataFormatString= "{0:M}" 月份和日期 MMMM dd,如January30
DataFormatString= "{0:G}" 一般格式 M/d/yyyy HH:mm:ss aa
-----------------------------------------------------------------
格式字符串 输入 结果
"{0:C}" 12345.6789 $12,345.68
"{0:C}" -12345.6789 ($12,345.68)
"{0:D}" 12345 12345
"{0:D8}" 12345 00012345
"{0:E}" 12345.6789 1234568E+004
"{0:E10}" 12345.6789 1.2345678900E+004
"{0:F}" 12345.6789 12345.68
"{0:F0}" 12345.6789 12346
"{0:G}" 12345.6789 12345.6789
"{0:G7}" 123456789 1.234568E8
"{0:N}" 12345.6789 12,345.68
"{0:N4}" 123456789 123,456,789.0000
"Total: {0:C}" 12345.6789 Total: $12345.68