C language implements a simple number guessing game

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前言

猜数字游戏,Program randomly generated Numbers,玩家输入数字,Program prompts the player to guess the number compared with the generated random number is input big,还是猜小了.直到猜中,游戏结束.

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一、大致思路

1.产生随机数,At the same time pay attention to the random number should be controlled within a certain range of,If the number in the difficult to guess,影响游戏体验.
2.判断逻辑,Because of big probability not a guess they should adopt the way of circulation to determine whether guess digital link.
3.Design a simple menu,Hint whether players into the game.So should be to play at least once in deciding whether to start the game,可以采用do while循环来实现

二、具体实现

1.Using the simple print function design game menu：

void meau()
{
    
	printf("******************\n");
	printf("*****1 play*******\n");
	printf("*****0 exit*******\n");

}

About will begin to start the game is set0Quit the game is set1It has a clear benefits,Previously analysis into the game to takedo while 循环的方式,If the input select Numbers 1或0Set loop condition,A natural transition to enter1Enter the game until finishing the exit,输入0跳出循环,Just meet the set to exit the game,The general logic have.Because after entering cycle again want to face choice,So circulation on insideswitchStatement to select logic.Based on the above thinking has the following code

int main()
{
    
	int input = 0;
	do
	{
    
		
		meau();
		scanf("%d", &input);
		switch (input) 
		{
     case 1:
			game();
			break;
		 case 0:
			printf("退出游戏\n");
			break;
		 default:
			printf("输入错误,请重新输入\n");
			break;
		}

	} 
	while (input);

	return 0;





}

Due to the guessing game subject digital logic more,可以将其封装成gameFunction to design it.Real first first about the game is to generate a random number.可以利用randFunction to realize the generation of random Numbers.But by the input data test found a problem,The generated random number every time don't random
所以为了解决这问题,我们利用srand初始化随机数生成器,In order to make each initialization value is different,Can use timestamp to generate different random number.Because the computer time is change at any time.If the random number generated ingame函数中的,When we enter the game random number every time interval is very short, they could be the same,So random Numbers can be generated in themain函数中因为mainEvery time call only once,srandOne call can be used.

int main()
{
    
	srand((unsigned int)time(NULL));//设置随机数生成器
	.............................
	...............................
	..............................
}

With random Numbers will only judge logic,Set a variable to receive a random number,Then they guess number compared with the variable.If big tip player input digital big,反之亦然.If equal prompt players guessed it.Due to guess the number is not a big probability of so loop is used to implement,When prevailed in addition to remind players guess also should jump out of the loop.In order to avoid too much random number,Will generate a random number is limited to100的范围内.Will generate random Numbers of100Take more to add1即可.
代码如下：

/rand生成随机数 0~32767
//返回一个0~32767;
void game()
{
    
	system("cls");//清理屏幕
	printf("Congratulations to play\n");
  //1.生成随机数
  // 2.猜数字
  //srand初始化随机数生成器
  //时间戳
 
    int ret = rand()%100+1;//0~100的数字
	while (1)
	{
    

		printf("请猜数字\n");
		int guess = 0;
		scanf("%d", &guess);
		if (guess < ret)
		{
    
			printf("猜小了\n");

		}
		else if (guess > ret)
		{
    
			printf("猜大了\n");

		}
		else
		{
    
			printf("恭喜猜对了\n");
			break;
		}
	}
}

总结

1.源码

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include<stdlib.h>
#include<time.h>
#include<windows.h>
void meau()
{
    
	printf("******************\n");
	printf("*****1 play*******\n");
	printf("*****0 exit*******\n");

}

//rand生成随机数 0~32767
//返回一个0~32767;
void game()
{
    
	system("cls");//清理屏幕
	printf("Congratulations to play\n");
  //1.生成随机数
  // 2.猜数字
  //srand初始化随机数生成器
  //时间戳
 
    int ret = rand()%100+1;//0~100的数字
	while (1)
	{
    

		printf("请猜数字\n");
		int guess = 0;
		scanf("%d", &guess);
		if (guess < ret)
		{
    
			printf("猜小了\n");

		}
		else if (guess > ret)
		{
    
			printf("猜大了\n");

		}
		else
		{
    
			printf("恭喜猜对了\n");
			break;
		}
	}
}
int main()
{
    
	srand((unsigned int)time(NULL));//设置随机数生成器
	int input = 0;
	do
	{
    
		
		meau();
		scanf("%d", &input);
		switch (input) 
		{
     case 1:
			game();
			break;
		 case 0:
			printf("退出游戏\n");
			break;
		 default:
			printf("输入错误,请重新输入\n");
			break;
		}

	} 
	while (input);

	return 0;

}

My ability is limited code implementation is simple.This is me to guess the Numbers game simple introduction,如有错误,欢迎指出！