用c语言大家们来看看啊

#include <stdio.h>
int main()
{
    char s[100];
    char c;
    int i=0,count=0;
    gets(s);
    scanf("%c",&c);
    while(s[i] != '\0')
    {
        if(s[i] == c)
            count++;
        i++;
    }
    printf("%d",count);
    return 0;
}