c语言初学者求助

刚好学到这，我只在这个网站运行过，应该是可以的。
#include <stdio.h>
#include<stdlib.h>

int main() {
    int magic;
    int guess;
    int count=0;
    char order='s';
    magic=rand()%1000+1;
    /*printf("magic=%dn",magic);
    printf("order=%cn",order);*/

    do{
        printf("猜数请输入s,终止请输入cn");
        scanf(" %c",&order);//%c前的空格不可以删
        printf("您输入了：%cn",order);
        if(order=='s'){
        printf("猜数范围为[1,1000]ninput:");
        scanf("%d",&guess);
        printf("%dn",guess);
        count++;
          if(guess==magic){
            printf("bingo!nmagic=%dn一共猜数%d次",magic,count);
            order='c';
          }
          else if(guess>magic){
            printf("too big!n");
          }
          else{
            printf("too small!n");
          }
        }
        else{
            printf("game over!");
        }
    }while(order=='s');
    return 0;
}