题解 | #计算某字符出现次数#

#include <stdio.h>
#include<string.h>
int main() {
    char a[1005], b;
    int t = 0;
    gets(a);
    scanf("%c", &b);
    int len = strlen(a);
    for (int i = 0; i < len; i++) {
        if ((b >= '0') && (b <= '9')) {
            if (b == a[i])
                t++;
        } else if (b > 96) {
            if (b == a[i] || b == a[i] + 32) t++;
        }

        else  if (b == a[i] || b == (a[i] - 32))
            t++;


    }
    printf("%d", t);
    return 0;
}