这个c语言题目咋写啊朋友们。，

Question

Answer 1

#include<stdio.h>
int main()
{
    char   ch;
    scanf("%c",&ch);
    if (65<=ch&&ch<=90||97<=ch&&ch<=122)
    {
        printf("1");
    }
    else if (48<=ch&&ch<=57)
    {
        printf("0");
    }
    else
    {
        printf("-1");
    }
    return  0;
}