删除字符串中的首个指定字符(命令行参数)

Question

Answer 1

代码如下：

#include <stdio.h>

int fun(char* s,char c)
{
    int j;
    
    while(*s != '\0')
    {
        if(*s == c)
        {
            j=0;
            while(*s != '\0')
            {
                *s = *(s+1);
                s++;
            }
            s--;
            *s = '\0';
            return 1;
        }
        s++;
    }
    return 0;
}

int main()
{
    char buf[100]={0},c;
    int index = 0;
    int isvalid = 0;
    gets(buf);
    while(buf[index] != '\0')
    {
        if(buf[index] == ' ' && buf[index+1] != '\0')
        {
            isvalid = 1;
            c = buf[index+1];
            buf[index] = '\0';
            break;
        }
        index++;
    }
    if(!isvalid )
    {
        printf("input eror,end\n");
        return 0;
    }
    if(fun(buf,c))
        printf("%s\n",buf);
    else
        printf("The string does not contain character '%c'\n",c);
    return 0;
}