题解 | #判断是不是字母#

#include <stdio.h>

int main()
{
    char c = 0;
    while((scanf("%c\n",&c)!=EOF)){
    if(c>='a' && c<='z' || c>='A' && c<='Z')
        printf("%c is an alphabet.\n",c);
    else
        printf("%c is not an alphabet.\n",c);}
    return 0;
}