题解 | #判断是不是字母#

#include <stdio.h>

int main() {
    char ch;
    while((ch=getchar())!=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;
}