题解 | #判断是不是字母#

#include<stdio.h>
int main()
{
    char n = 0;
    while (scanf("%c\n", &n) == 1)
    {
        if (n >= 'A' && n <= 'Z'||n>='a'&&n<='z')
            printf("%c is an alphabet.\n", n);

        else
            printf("%c is not an alphabet.\n", n);

    }

    return 0;
}