[C #] fill in 0 before the number to fill in the set length

[C #] set the length to 0 before the number.

This is a problem in small shops. How can we set the length to 0 before the number?

For example, if you want to limit 0 to 6 before 123, you can use the string. padleft and string. Format methods.

Http://msdn.microsoft.com/zh-tw/library/system.string.padleft (vs.80). aspx

Http://msdn.microsoft.com/zh-tw/library/system.string.format (vs.80). aspx

// Set the number to 0 and the length to 6
String snum= "123 ";
String pnum = snum. padleft (6, '0 ');
String fnum = string. Format (" ... {0: 00} ", Convert. toint16 (snum ));
MessageBox. Show ("original string:" + snum + "\ n passthrough padleft:" + pnum + "\ n passthrough string. Format:" + fnum );

Results

Exam

Http://www.blueshop.com.tw/board/show.asp? Subcde = brd20090319214030qif & fumcde =

Http://www.cnblogs.com/tuyile006/archive/2006/07/13/449884.aspx