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：