猜拳小游戏

今天咱们来编写一款猜拳小游戏

分析：要求键入剪刀，石头，布，用数字分别表明剪刀，石头，布。​

java中有一个Math.random();能够生成【0，1）之间的随机数，因此说这里用1，2，3表明剪刀，石头，布。 而电脑随机生成其中一个数字与用户输入的数字比较，当输入错误的时候会提示输入错误，请从新输入。

​每次猜拳有三种可能性，若是电脑赢，电脑积分+10，人的积分不变；

若是人赢，人积分+10，电脑积分不变；

若是打成平手，积分不变。

须要分别定义两个变量接收积分的变化。

 

最后要将这两个变量的​值作比较。

​

​import java.util.Scanner;

public class Problem8 {

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

System.out.println("欢迎来到猜拳小游戏");

System.out.println("======================================");

System.out.print("请输入游戏回合数：");

int num = scan.nextInt();

int scoreHuman = 0;

int scoreComputer = 0;

int i = 1;

for (; i <= num; i++) {

// System.out.println("======================================");

// System.out.println("第" + i + "回合，你的积分：" + scoreHuman + ",电脑的积分："

// + scoreComputer);

//

// System.out.println("======================================");

// System.out.print("出拳（1：剪刀，2：石头，3：布）：");

humanFightWithComputer(i, scoreHuman, scoreComputer);// 代替上部分代码功能

while (num > 0) {

int outFist = scan.nextInt();

int computerOutFist = (int) (Math.random() * 3 + 1);

if (outFist == 1 || outFist == 2 || outFist == 3) {

if (computerOutFist == 1 && outFist == 1) {

System.out.println("你：剪刀");

System.out.println("电脑：剪刀");

System.out.println("平均，积分不变");

scoreHuman += 0;

scoreComputer += 0;

break;

} else if (computerOutFist == 2 && outFist == 1) {

System.out.println("你：剪刀");

System.out.println("电脑：石头");

System.out.println("电脑赢，积分+10");

scoreHuman += 0;

scoreComputer += 10;

break;

} else if (computerOutFist == 3 && outFist == 1) {

System.out.println("你：剪刀");

System.out.println("电脑：布");

System.out.println("你赢，积分+10");

scoreHuman += 10;

scoreComputer += 0;

break;

} else if (computerOutFist == 1 && outFist == 2) {

System.out.println("你：石头");

System.out.println("电脑：剪刀");

System.out.println("你赢，积分+10");

scoreHuman += 10;

scoreComputer += 0;

break;

} else if (computerOutFist == 2 && outFist == 2) {

System.out.println("你：石头");

System.out.println("电脑：石头");

System.out.println("平局，积分不变");

scoreHuman += 0;

scoreComputer += 0;

break;

} else if (computerOutFist == 3 && outFist == 2) {

System.out.println("你：石头");

System.out.println("电脑：布");

System.out.println("电脑赢，积分+10");

scoreHuman += 0;

scoreComputer += 10;

break;

} else if (computerOutFist == 1 && outFist == 3) {

System.out.println("你：布");

System.out.println("电脑：剪刀");

System.out.println("电脑赢，积分+10");

scoreHuman += 0;

scoreComputer += 10;

break;

} else if (computerOutFist == 2 && outFist == 3) {

System.out.println("你：布");

System.out.println("电脑：石头");

System.out.println("你赢，积分+10");

scoreHuman += 10;

scoreComputer += 0;

break;

} else if (computerOutFist == 3 && outFist == 3) {

System.out.println("你：布");

System.out.println("电脑：布");

System.out.println("平局，积分不变");

scoreHuman += 0;

scoreComputer += 0;

break;

}

break;

} else {

System.out.println("出拳错误，请从新出拳");

}

}

// if(scoreHuman>scoreComputer){

// System.out.println("======================================");

// System.out.println("大获全胜！你的积分："+scoreHuman+"，电脑积分："+scoreComputer);

// System.out.println("======================================");

//

// }else if(scoreHuman==scoreComputer){

// System.out.println("======================================");

// System.out.println("棋逢对手！你的积分："+scoreHuman+"，电脑积分："+scoreComputer);

// System.out.println("======================================");

// }else{

// System.out.println("======================================");

// System.out.println("不幸败北！你的积分："+scoreHuman+"，电脑积分："+scoreComputer);

// System.out.println("======================================");

// }

}

whoWin(scoreHuman, scoreComputer);//代替上部分代码功能

}

public static void humanFightWithComputer(int i, int scoreHuman,

int scoreComputer) {

System.out.println("======================================");

System.out.println("第" + i + "回合，你的积分：" + scoreHuman + ",电脑的积分："

+ scoreComputer);

System.out.println("======================================");

System.out.print("出拳（1：剪刀，2：石头，3：布）：");

}

public static void whoWin(int scoreHuman, int scoreComputer) {

if (scoreHuman > scoreComputer) {

System.out.println("======================================");

System.out.println("大获全胜！你的积分：" + scoreHuman + "，电脑积分："

+ scoreComputer);

System.out.println("======================================");

} else if (scoreHuman == scoreComputer) {

System.out.println("======================================");

System.out.println("棋逢对手！你的积分：" + scoreHuman + "，电脑积分："

+ scoreComputer);

System.out.println("======================================");

} else {

System.out.println("======================================");

System.out.println("不幸败北！你的积分：" + scoreHuman + "，电脑积分："

+ scoreComputer);

System.out.println("======================================");

}

}

}