题解 | 判断是不是字母

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