int main()
{
char c;
printf("Please enter a character ");
scanf("%d", &c);
((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) && printf("The character you entered is %d,it is an alphabet.", c);
((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) || printf("The character you entered is %d,it isn't an alphabet.", c);
return 0;
}
scanf("%d", &c);
改成 scanf("%c", &c); char类型 用%c接收 ,%d只能接收整形
scanf那里是%c
你输入的时候换成%c,最后输出也换成%c
scanf("%c",&c);
printf("%c",c);