Variable parameters in C Language

I have not used many variable parameters in the past, but recently I found it brings a lot of convenience ....

Below is an example of C LanguageCode:

# Include <stdio. h> # Include <Stdarg. h> Int Print ( Char * FMT ,...){  Char Buffer [ 1024 ] = { 0  }; Va_list Va; va_start (va, FMT); vsnprintf (buffer, sizeof (buffer), FMT, VA); va_end (VA );  Return  Printf (buffer );} Int Main ( Int Argc, Char ** Argv) {print (  "  % S % d % C \ n  " , "  Girl does not cry  " , 100 , 65  );  Return   0  ;} 

Note that the variable parameter function is in the C language, so if you use it in C ++, You need to define the function as follows:

 
Int _ cdeclPrint (Char*FMT ,...)
 

This is also useful in Windows programming. For example, when an error is displayed:
My previous practices are as follows:

 
CharBuf [128] = {0}; Wsprintf (BUF,"Error: % 08x", Getlasterror (); MessageBox (null, Buf, null, mb_ OK| Mb_iconexclamation );
 

 

Now, you don't need to define the variables. You can simply do it in one sentence:
Msgbox (null, null, mb_ OK | mb_iconexclamation, "% S % d % C", "girl does not cry", 100, 'A ');
Girl don't cry (QQ: 191035066) @ 2012-05-10 22:41:13 @ http://www.cnblogs.com/nbsofer