8-13.c

来自「C语言程序设计及应用习题解析与上机指导 冶金工业出版社 谢乐军」· C语言 代码 · 共 21 行

#include <string.h>
main()
{ int i,resu;
  char s1[100],s2[100];
  printf("please input first string:");
  gets(s1);
  printf("please input second string:");
  gets(s2);
  i=0;
  resu=0;
  while(s1[i]!='\0'||s2[i]!='\0')
  {
   if(s1[i]!=s2[i])
     { resu=s1[i]-s2[i];
       break;
      }
   i++;
   }
  printf("\n result is : %d\n",resu);
}