题解 | #计算某字符出现次数#

#include <stdio.h>
#include<string.h>
int main() {
    char s[1001]={0};
    gets(s);
    char ch;
    scanf("%c",&ch);
    int count=0;
    for(int i=0;s[i]!='\0';i++)
    {
        if(s[i]==ch)
            count++;
        else if(ch>='A'&&ch<='Z'&&s[i]==ch+32)
            count++;
        else if(ch>='a'&&ch<='z'&&s[i]==ch-32)
            count++;
    }
    printf("%d",count);
    return 0;
}