猜数字游戏

#include<stdio.h>
#include<time.h>
#include<stdlib.h>
void menu()
{
printf("##################\n");
printf("###   1.play   ###\n");
printf("###   0.exit   ###\n");
printf("##################\n");


}
void game()
{
    int rand_num = rand()%101;
int guess = 0;
while(1)
{
 printf("请猜数字>:");
 scanf_s("%d",&guess);
 if(guess>rand_num)
 {
    printf("猜大了\n");
 }
 else if(guess<rand_num)
 {
    printf("猜小了\n");
 }
 else
 {
    printf("恭喜你，猜对了\n");
break;
 }
}
}
int main()
{
int input = 0; 
srand((unsigned int)time(NULL));
do
{
 menu();
 printf("请选择:>");
 scanf_s("%d",&input);
 switch(input)
 {
 case 1:
 game();
 break;
 case 0:
 break;
 }
}while(input);
  return 0;
}