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

//打印菜单
void menu()
{
    printf("*****************************n");
    printf("*******     1.play    *******n");
    printf("*******     2.exit    *******n");
    printf("*****************************n");
}

//游戏的实现
void game()
{
    //1.要有数字，所以要生成随机数
    //rand函数返回一个0-32767之间的数字
    //srand设置一个随机的起点 需要给随机值才能生成随机值 电脑的时间一直在发生变化 故用时间戳
    
    int ret = rand() % 100 + 1;//任何数%100d的余数是0-99，然后加1， 得到我们的需求范围即为1-100
    
    //2.猜数字
    int guess = 0;
    while(1)
    {
        printf("please guess the numbers:>");
        scanf("%d",&guess);
        if (guess < ret)
        {
            printf("Guess it's too small!!!n");
        }
        else if (guess > ret)
        {
            printf("Guess it's big!!!n");
        }
        else
        {
            printf("Congratulartions,guessed right!!!n");
            break;
        }
        
    }
}

int main()
{
    int input = 0;
    srand((unsigned int)time(NULL));

    do
    {
        menu();//打印菜单
        printf("please choose:>");
        scanf("%d",&input);
        switch (input)
        {
        case 1:
            game();
            // printf("guess the numbersn");
            break;
        case 0:
            printf("quit the gamen");
            break;
        default:
            printf("incorrect selection,please reselect!n");
            break;
        }
    } while (input);
    
    return 0;
}