C語言 labs用法及代碼示例

/* labs example */
#include <stdio.h>      /* printf */
#include <stdlib.h>     /* labs */

int main ()
{
  long int n,m;
  n=labs(65537L);
  m=labs(-100000L);
  printf ("n=%ld\n",n);
  printf ("m=%ld\n",m);
  return 0;
}