题解 | #判断是不是字母#

#include <stdio.h>
int main() {
    char ch;
    int i = 0;
    while((scanf("%c",&ch )) != EOF){  //每循环一次就拿一次数据
        if(ch == '\n')                 //如果从输入缓冲区拿到的是“回车”就从新回到循环开始从新拿数据
            continue;
        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);
        }
        
    }
    return 0;
}