题解 | #判断是不是字母#

#include <stdio.h>

int main(){
    char ch;
    while(scanf("%c",&ch)!=EOF){
        if((ch>='a' && ch <='z') || (ch>='A' && ch <='Z')){
            printf("%c is an alphabet.\n",ch);
        }else{
            printf("%c is not an alphabet.\n",ch);
        }
        getchar();
    }
    return 0;
}