tst_sprintf.c

KEILC51程序实例和配套硬件目标板,很详细,程序有注释

#include <stdio.h>
void tst_sprintf (void) {
   char buf [100];
   int n;
   int a,b;
   float pi;
   a = 123;
   b = 456;
   pi = 3.14159;
   n = sprintf (buf, "%f\n", 1.1);
   n += sprintf (buf+n, "%d\n", a);
   n += sprintf (buf+n, "%d %s %g", b, "---", pi);
   printf (buf);
}