题解 | #判断是不是字母#

#include<stdio.h>
#include<ctype.h>
int main()
{
    char ch = 0;
    while(~scanf("%c",&ch))
    {
        getchar();
        if(isalpha(ch))
        {
            printf("%c is an alphabet.\n", ch);
        }
        else
        {
            printf("%c is not an alphabet.\n", ch);
        }
    }
    return 0;
}