题解 | #判断是不是字母#

#include <stdio.h>
#include<ctype.h>
int main()
{
	char ch = 0;
	while ((ch = getchar()) != EOF)
	{
		getchar();
		if (isalpha(ch))//用字符函数isalpha来判断是否是字母
			printf("%c is an alphabet.\n", ch);
		else
			printf("%c is not an alphabet.\n", ch);
	}
	return 0;
}