猜数字游戏

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#include<Windows.h>
void menu()
{
	printf("**********************\n");
	printf("********1.play********\n");
	printf("********0.exit********\n");
	printf("**********************\n");
}
void game()
{    
	int ret = 0;
	int num = 0;
	ret=rand() % 100;
	while (1)
	{
		printf("请输入猜的数字>:");
		scanf("%d", &num);
		if (num>ret)
		{
			printf("猜大了\n");
		}
		else if (num < ret)
		{
			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("%d",&input);
		switch (input)
		{
		case 1:
			game();
			break;
		case 0:
			printf("退出游戏");
			break;
		default:
			printf("选择错误\n");
			break;
		}
	} while (input);
	system("pause");
	return 0;
}