Win32:sprintf用法（swprintf、scanf、swcanf与之类似）

// crt_sprintf.c

// compile with: /W3

// This program uses sprintf to format various

// data and place them in the string named buffer.



#include <stdio.h>



int main( void )

{

   char  buffer[200], s[] = "computer", c = 'l';

   int   i = 35, j;

   float fp = 1.7320534f;



   // Format and print various data: 

   j  = sprintf( buffer,     "   String:    %s\n", s ); // C4996

   j += sprintf( buffer + j, "   Character: %c\n", c ); // C4996

   j += sprintf( buffer + j, "   Integer:   %d\n", i ); // C4996

   j += sprintf( buffer + j, "   Real:      %f\n", fp );// C4996

   // Note: sprintf is deprecated; consider using sprintf_s instead



   printf( "Output:\n%s\ncharacter count = %d\n", buffer, j );

}

Output:

   String:    computer

   Character: l

   Integer:   35

   Real:      1.732053



character count = 79

 

 

 

// crt_sscanf.c

// compile with: /W3

// This program uses sscanf to read data items

// from a string named tokenstring, then displays them.



#include <stdio.h>



int main( void )

{

   char  tokenstring[] = "15 12 14...";

   char  s[81];

   char  c;

   int   i;

   float fp;



   // Input various data from tokenstring:

   // max 80 character string:

   sscanf( tokenstring, "%80s", s ); // C4996

   sscanf( tokenstring, "%c", &c );  // C4996

   sscanf( tokenstring, "%d", &i );  // C4996

   sscanf( tokenstring, "%f", &fp ); // C4996

   // Note: sscanf is deprecated; consider using sscanf_s instead



   // Output the data read

   printf( "String    = %s\n", s );

   printf( "Character = %c\n", c );

   printf( "Integer:  = %d\n", i );

   printf( "Real:     = %f\n", fp );

}

String    = 15

Character = 1

Integer:  = 15

Real:     = 15.000000