题解 | #判断是不是字母#

#include <stdio.h>
int main()
{
char a;
while(~scanf("%c",&a))
{
getchar();       //吃掉每次输入后的回车键
if((a>='A'&&a<='Z')||(a>='a'&&a<='z'))
    printf("%c is an alphabet.\n",a);
else
    printf("%c is not an alphabet.\n",a);
}
return 0;
}