On the realization of guessing numbers game

On the realization of simple Guessing Number Game

For today's Gobang game , There are several features :

• Players enter numbers to choose whether to play or exit the game , In case of wrong selection, you will be prompted and re-enter
• After entering data through the keyboard , The computer will prompt the player that the data guessed is too large or too small , If you guessed right, print congratulations , Guessed it , Then let the player choose whether to play the game again
• The range of random numbers is 1-100

I don't say much nonsense , Go straight to the code :>

#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 input2 = 0;
	int ret = rand() % 100 + 1;// Generate a random number ;
	while (1)
	{
    
		printf(" Please guess the number :>");
		scanf("%d", &input2);
		if (input2 < ret)
		{
    
			printf(" Guess a little \n");
		}
		else if (input2 > ret)
		{
    
			printf(" Guess the \n");
		}
		else
		{
    
			printf(" congratulations , Guessed it \n");
			break;
		}
	}
}




int main()
{
    
	int input1 = 0;
	srand((unsigned int)time(NULL));// Set the starting point of random number 
	do
	{
    
		menu();// Here menu Is a menu function 
		printf(" Please enter a number :>");
		scanf("%d", &input1);
		switch(input1)
		{
    
		case 1:
			printf(" Guess the number game \n");
			game();
			break;
		case 0:
			printf(" Exit procedure \n");
			break;
		default:
			printf(" Input error , Please re-enter \n");
			break;
		}
	} while (input1);
	return 0;
}

Code explanation everywhere

About... In the main function srand function , Set a random number starting point for , But to generate a random number , You need to pass him a random number , therefore , We thought of using time as a parameter , And cast to （unsigned int） type , To match srand The grammar of .

menu Menu functions created for ourselves , Used to output and prompt the player what to input

About do-while loop ：

Because the game is executed at least once , So with do while Loop to cut in , Among them switch case It is used to judge the input of players to execute the corresponding results

If you choose 1. Then play the game , If you choose 0, Then quit the game , If you choose another number , Then re-enter

Yes game The explanation of functions ：

game Function ,rand The function is used to generate a random number , stay while In circulation , The number entered by the player will match rand Compare the random numbers generated by the function , If the input is too small or too large , The computer will prompt , Let the player re-enter , If the player guesses right , And then jump out of the loop , Let the player restart the game or exit the program .

A little change in the procedure

The previous print takes up part of the screen , It doesn't look good , Therefore, the following changes are made to the procedure ：

In this way, the print will become more beautiful ( I personally think so )!.