猜数字游戏

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

//菜单函数
void menu()
{
	printf("=============================\n");
	printf("      1.play     0.exit      \n");
	printf("=============================\n");
}

//猜数字
void game()
{
	int ret = rand() % 100 + 1;
	int guess = 0;
	while (1)
	{
		printf("请输入数字:");
		scanf("%d", &guess);
		if (guess > ret)
		{
			printf("猜大了\n");
		}
		else if (guess < ret)
		{
			printf("猜小了\n");
		}
		else
		{
			printf("恭喜猜对了\n");
			break;
		}
	}
}
int main()
{
	int input = 0;
	srand((unsigned int)time(NULL));//time:时间戳
	do
	{
		menu();
		printf("请输入:");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			game();
			break;
		case 0:
			printf("退出游戏\n");
			break;
		default:
			printf("选择错误\n");
			break;
		}
	} while (input);
	return 0;
}