$a = 348

 

"{0:N2}" -f $a

"{0:D8}" -f $a

"{0:C2}" -f $a

"{0:P0}" -f $a

"{0:X0}" -f $a

 

348.00

00000348

¥348.00

34,800%

15C

 

 

参考:

https://msdn.microsoft.com/zh-cn/library/dwhawy9k(v=vs.110).aspx?cs-save-lang=1&cs-lang=csharp#DFormatString

https://technet.microsoft.com/en-us/library/ee692795.aspx

http://www.pstips.net/formatting-string.html

http://www.pstips.net/formatting-numbers-easily.html