将字符串s1中任何与字符串s2中字符匹配的字符都删除

/**************************************************************************
    类型：<c程序设计语言(第二版.新版)> 练习 2-4
    名称：lx.c
    author: wubenzhimu
    data:   2012.11.16
    功能：重新编写函数squeeze(s1,s2),将字符串s1中任何与字符串s2中字符匹配
    的字符都删除。
***************************************************************************/

#include <stdio.h>
#define MAXLINE 1000

/* 比较两个字符串，删除匹配的字符 */
void squeeze(char s1[], char s2[]);

int main()
{
    char s1[MAXLINE] = {'a','b','c','d','e','f','g','h','i','k',0};
    char s2[MAXLINE] = {'a','c','e','g','i',0};
    
    squeeze(s1, s2);
    printf("%s\n", s1);
    return 0;
}

void squeeze(char s1[], char s2[])
{
    int i, j, k;
    i = j = k = 0;
    
    while(s2[j] != '\0')
    {
        while(s1[i] != '\0')
        {
            if(s2[j] != s1[i])
                s1[k++] = s1[i];
            i++;
        }
        s1[k] = '\0';
        i = k = 0;
        j++;
    }
}

结果：