题解 | #判断是不是字母#

#include <stdio.h>

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