题解 | #判断是不是字母#

#include <stdio.h>

int main() {
    char a;
    while (scanf("%c", &a) != EOF) { 
       getchar();
       if((a>=65&&a<=90)||(a>=97&&a<=122))
       printf("%c is an alphabet.\n",a);
       else
        printf("%c is not an alphabet.\n",a);
    }
    return 0;
}