题解 | #计算某字母出现次数#

#include <stdio.h>
#include <ctype.h>
int main(){
    char word[500];
    char cmp;
    char CMP;
    int i = 0;
    int j = 0;
    fgets(word, 500, stdin);
    scanf("%c", &CMP);
    cmp = tolower(CMP);
    while (word[i] != '\0'){
        if (tolower(word[i]) == cmp)
            j++;
        i++;
    }
    printf("%d", j);
    return 0;
}