#include<stdio.h>
 struct st
 {
     char c;
    char s[80];
 };
 char * f(struct st t);
 void main()
 {
     int k;
     struct st a[4]={{'1',"123"},{'2',"321"},{'3',"123"},{'4',"321"}};
     for(k=0;k<4;k++)
         printf("%s\n",f(a[k])); }
 char * f(struct st t)
 {
     int k=0;
     while(t.s[k]!='\0')
     {
        if(t.s[k]==t.c) return t.s+k;
         k++;
     }
     return t.s;
 }

输出乱码..

求指教。。。。。。。来个高手救救我把

struct st
{
     char c;
    char s[80];
};

这是定义吧  哪有输出？