C语言实现猜数字小项目

项目介绍

在本项目中，我们将使用C语言编写一个简单的猜数字游戏。玩家需要在规定时间内猜出一个随机数字，每猜一次，游戏将会告知玩家数字大小是否正确。

实现步骤

步骤1：生成随机数字

我们首先需要生成一个随机数字，使用C语言标准库中的rand()函数可以生成介于0和RAND_MAX之间的随机数，通过取模运算将其转换为我们需要的数字范围。

int generateRandomNumber(int lowerLimit, int upperLimit){
    return (rand() % (upperLimit - lowerLimit + 1)) + lowerLimit;
}

步骤2：处理用户输入

接下来，我们需要处理用户输入的数字。可以使用scanf()函数从控制台获取用户输入，并将其保存到一个变量中。

int userInput;
scanf("%d", &userInput);

步骤3：比较数字大小并提供反馈

我们需要将用户输入与随机数字进行比较，并告知用户猜测是否正确，或是数字偏大或偏小。

if(userInput == randomNumber){
    printf("Congratulations! You guessed the number correctly!\n");
    return 1;
}
else if(userInput < randomNumber){
    printf("The number you guessed is too small. Please try again.\n");
}
else{
    printf("The number you guessed is too large. Please try again.\n");
}

步骤4：完整代码

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

int generateRandomNumber(int lowerLimit, int upperLimit){
    return (rand() % (upperLimit - lowerLimit + 1)) + lowerLimit;
}

int main(){
    // 设置随机种子
    srand(time(NULL));

    // 生成随机数字
    int randomNumber = generateRandomNumber(1, 100);

    // 游戏规则与提示
    printf("Welcome to the Number Guessing Game!\n");
    printf("The game generates a random number between 1 and 100. You have to guess this number correctly.\n");
    printf("You will be given 10 attempts to guess the number.\n");

    // 开始游戏
    int numberOfAttempts = 0;
    while(numberOfAttempts < 10){
        printf("\nAttempt %d - Enter your guess: ", numberOfAttempts + 1);

        // 处理用户输入
        int userInput;
        scanf("%d", &userInput);

        if(userInput == randomNumber){
            printf("Congratulations! You guessed the number correctly!\n");
            return 0;
        }
        else if(userInput < randomNumber){
            printf("The number you guessed is too small. Please try again.\n");
        }
        else{
            printf("The number you guessed is too large. Please try again.\n");
        }

        numberOfAttempts++;
    }

    printf("Sorry! You have used up all your attempts! The correct number was %d.\n", randomNumber);
    return 0;
}

示例说明

示例1：用户猜小了

Welcome to the Number Guessing Game!
The game generates a random number between 1 and 100. You have to guess this number correctly.
You will be given 10 attempts to guess the number.

Attempt 1 - Enter your guess: 50
The number you guessed is too small. Please try again.

Attempt 2 - Enter your guess: 75
The number you guessed is too small. Please try again.

Attempt 3 - Enter your guess: 85
The number you guessed is too small. Please try again.

Attempt 4 - Enter your guess: 95
The number you guessed is too small. Please try again.

Attempt 5 - Enter your guess: 99
The number you guessed is too small. Please try again.

Attempt 6 - Enter your guess: 100
Congratulations! You guessed the number correctly!

示例2：用户猜大了

Welcome to the Number Guessing Game!
The game generates a random number between 1 and 100. You have to guess this number correctly.
You will be given 10 attempts to guess the number.

Attempt 1 - Enter your guess: 50
The number you guessed is too large. Please try again.

Attempt 2 - Enter your guess: 25
The number you guessed is too large. Please try again.

Attempt 3 - Enter your guess: 13
The number you guessed is too large. Please try again.

Attempt 4 - Enter your guess: 7
The number you guessed is too large. Please try again.

Attempt 5 - Enter your guess: 3
The number you guessed is too large. Please try again.

Attempt 6 - Enter your guess: 1
Congratulations! You guessed the number correctly!