第13章 指导学习:人机猜拳

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赵冬梅
2018-10-15public class Person {
    String name = "匿名";         // 名字
    int score = 0;                 // 积分
    /**
     * 出拳
     * 
     * @return 出拳结果:1.剪刀 2.石头 3.布
     */
    public int showFist() {
        // 接收用户的选择
        Scanner input = new Scanner(System.in);
        System.out.print("
请出拳:1.剪刀 2.石头 3.布 (输入相应数字) :");
        int show = input.nextInt();
        // 输出出拳结果,并返回
        switch (show) {
        case 1:
            System.out.println("你出拳: 剪刀");
            break;
        case 2:
            System.out.println("你出拳: 石头");
            break;
        case 3:
            System.out.println("你出拳: 布");
            break;
        }
        return show;
    }
}

public class Computer {
       String name = "电脑"; // 名字
       int score = 0;;       // 积分
       
       /**
        * 出拳
        * @return 出拳结果:1.剪刀 2.石头 3.布
        */
       public int showFist(){
           // 产生随机数
           int show = (int)(Math.random()*10)%3 + 1;  //产生随机数,表示电脑出拳
           
           // 输出出拳结果并返回
           switch(show){
              case 1:
                  System.out.println(name+"出拳: 剪刀");
                  break;
              case 2:
                  System.out.println(name+"出拳: 石头");
                  break;
              case 3: 
                  System.out.println(name+"出拳: 布");
                  break;
           }
           return show;
       }
}
public class Game1 {
    Person person;       //甲方
    Computer computer;   //乙方
    int count;           //对战次数
    
    /**
     * 初始化
     */
    public void initial(){
        person = new Person();
        computer = new Computer();
        count = 0;
    }
        
    /**
     * 开始游戏
     */
    public void startGame() {
        initial();
        System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------
");
        System.out.println("
		******************");
        System.out.println  ("		**  猜拳, 开始    **");
        System.out.println  ("		******************");
        
        System.out.println("

出拳规则:1.剪刀 2.石头 3.布");
        /*选择对方角色*/
        System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");
        Scanner input = new Scanner(System.in);
        int role = input.nextInt();
        if(role == 1){
            computer.name = "刘备";
        }else if(role == 2){
            computer.name = "孙权";
        }else if(role == 3){
            computer.name = "曹操";
        }  
        
        System.out.print("你选择了"+computer.name+"对战");
    }
}
public class Game2 {
    Person person;       //甲方
    Computer computer;   //乙方
    int count;           //对战次数
    
    /**
     * 初始化
     */
    public void initial(){
        person = new Person();
        computer = new Computer();
        count = 0;
    }
        
    /**
     * 开始游戏
     */
    public void startGame() {
        initial();  // 初始化
        System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------
");
        System.out.println("
		******************");
        System.out.println  ("		**  猜拳, 开始    **");
        System.out.println  ("		******************");
        
        System.out.println("

出拳规则:1.剪刀 2.石头 3.布");
        /*选择对方角色*/
        System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");
        Scanner input = new Scanner(System.in);
        int role = input.nextInt();
        if(role == 1){
            computer.name = "刘备";
        }else if(role == 2){
            computer.name = "孙权";
        }else if(role == 3){
            computer.name = "曹操";
        }    
        System.out.println("你选择了 "+computer.name+"对战");
        
        /*开始游戏*/
        System.out.print("
要开始吗?(y/n) ");
        String con = input.next();
        int perFist;   //用户出的拳
        int compFist;  //计算机出的拳
        if(con.equals("y")){
            /*出拳*/
            perFist = person.showFist();
            compFist = computer.showFist();
            /*裁决*/
            if((perFist == 1 && compFist == 1) || (perFist == 2 && compFist == 2) || (perFist == 3 && compFist == 3)){
                System.out.println("结果:和局,真衰!
");  //平局
            }else if((perFist == 1 && compFist == 3) || (perFist == 2  && compFist == 1) || (perFist == 3 && compFist == 2)){
                System.out.println("结果: 恭喜, 你赢了!");  //用户赢                
            }else{
                System.out.println("结果说:^_^,你输了,真笨!
");  //计算机赢                
            }            
        }        
    }
}
public class Game3 {
    Person person;       //甲方
    Computer computer;   //乙方
    int count;           //对战次数
    
    /**
     * 初始化
     */
    public void initial(){
        person = new Person();
        computer = new Computer();
        count = 0;
    }
        
    /**
     * 开始游戏
     */
    public void startGame() {
        initial();  // 初始化
        System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------
");
        System.out.println("
		******************");
        System.out.println  ("		**  猜拳, 开始    **");
        System.out.println  ("		******************");
        
        System.out.println("

出拳规则:1.剪刀 2.石头 3.布");
        /*选择对方角色*/
        System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");
        Scanner input = new Scanner(System.in);
        int role = input.nextInt();
        if(role == 1){
            computer.name = "刘备";
        }else if(role == 2){
            computer.name = "孙权";
        }else if(role == 3){
            computer.name = "曹操";
        }    
        System.out.println("你选择了 "+computer.name+"对战");
        
        /*开始游戏*/
        System.out.print("
要开始吗?(y/n) ");
        String con = input.next();
        int perFist;   //用户出的拳
        int compFist;  //计算机出的拳
        while(con.equals("y")){
            /*出拳*/
            perFist = person.showFist();
            compFist = computer.showFist();
            /*裁决*/
            if((perFist == 1 && compFist == 1) || (perFist == 2 && compFist == 2) || (perFist == 3 && compFist == 3)){
                System.out.println("结果:和局,真衰!嘿嘿,等着瞧吧 !
");  //平局
            }else if((perFist == 1 && compFist == 3) || (perFist == 2  && compFist == 1) || (perFist == 3 && compFist == 2)){
                System.out.println("结果: 恭喜, 你赢了!");  //用户赢
                person.score++;
            }else{
                System.out.println("结果说:^_^,你输了,真笨!
");  //计算机赢
                computer.score++;
            }
            count++;
            System.out.print("
是否开始下一轮(y/n):  ");
            con = input.next();
        }
    }
}
public class Game4 {
    Person person;       //甲方
    Computer computer;   //乙方
    int count;           //对战次数
    
    /**
     * 初始化
     */
    public void initial(){
        person = new Person();
        computer = new Computer();
        count = 0;
    }
        
    /**
     * 开始游戏
     */
    public void startGame() {
        initial();  // 初始化
        System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------
");
        System.out.println("
		******************");
        System.out.println  ("		**  猜拳, 开始    **");
        System.out.println  ("		******************");
        
        System.out.println("

出拳规则:1.剪刀 2.石头 3.布");
        /*选择对方角色*/
        System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");
        Scanner input = new Scanner(System.in);
        int role = input.nextInt();
        if(role == 1){
            computer.name = "刘备";
        }else if(role == 2){
            computer.name = "孙权";
        }else if(role == 3){
            computer.name = "曹操";
        }   
        System.out.println("你选择了 "+computer.name+"对战");
        
        System.out.print("
要开始吗?(y/n) ");
        String con = input.next();
        int perFist;   //用户出的拳
        int compFist;  //计算机出的拳
        while(con.equals("y")){
            /*出拳*/
            perFist = person.showFist();
            compFist = computer.showFist();
            /*裁决*/
            if((perFist == 1 && compFist == 1) || (perFist == 2 && compFist == 2) || (perFist == 3 && compFist == 3)){
                System.out.println("结果:和局,真衰!嘿嘿,等着瞧吧 !
");  //平局
            }else if((perFist == 1 && compFist == 3) || (perFist == 2  && compFist == 1) || (perFist == 3 && compFist == 2)){
                System.out.println("结果: 恭喜, 你赢了!");  //用户赢
                person.score++;
            }else{
                System.out.println("结果说:^_^,你输了,真笨!
");  //计算机赢
                computer.score++;
            }
            count++;
            System.out.print("
是否开始下一轮(y/n):  ");
            con = input.next();
        }
        /*显示结果*/
        showResult();
    }
    
    /**
     * 显示比赛结果
     */
    public void showResult(){
        /*显示最后结果*/
        System.out.println("---------------------------------------------------");
        System.out.println(computer.name + "  VS  " + person.name);
        System.out.println("对战次数:"+ count);
        
        int result = calcResult();
        if(result == 1){
            System.out.println("结果:打成平手,下次再和你一分高下!");
        }else if(result == 2){
            System.out.println("结果:恭喜恭喜!");   //用户获胜
        }else{ 
            System.out.println("结果:呵呵,笨笨,下次加油啊!");   //计算机获胜
        }
        System.out.println("---------------------------------------------------");
    }
    
    /**
     * 计算比赛结果
     * @return 1:战平;2:用户赢;3:电脑赢
     */
    public int calcResult(){
        if(person.score == computer.score){
              return 1; // 战平
        }else if(person.score > computer.score){
              return 2; // 用户赢
        }else{
              return 3; // 电脑赢
        }
        
    }
}
public class Game {
    Person person;       //甲方
    Computer computer;   //乙方
    int count;           //对战次数
    
    /**
     * 初始化
     */
    public void initial(){
        person = new Person();
        computer = new Computer();
        count = 0;
    }
        
    /**
     * 开始游戏
     */
    public void startGame() {
        
        System.out.println("----------------欢 迎 进 入 游 戏 世 界----------------");
        System.out.println("
		******************");
        System.out.println  ("		**  猜拳, 开始    **");
        System.out.println  ("		******************");
        
        System.out.println("
出拳规则:1.剪刀 2.石头 3.布");
        
        Scanner input = new Scanner(System.in);
        String exit = "n";  // 退出系统
        
        do{
            initial();  // 初始化
            /*选择对方角色*/
            System.out.print("请选择对方角色(1:刘备 2:孙权 3:曹操): ");
            
            int role = input.nextInt();
            if(role == 1){
                computer.name = "刘备";
            }else if(role == 2){
                computer.name = "孙权";
            }else if(role == 3){
                computer.name = "曹操";
            }   
            
            // 扩展功能1:输入用户姓名
            /*输入用户姓名*/
            System.out.print("请输入你的姓名:");
            person.name = input.next();
            
            System.out.println(person.name+"  VS  "+computer.name+"  对战
");
            // 扩展功能1结束
            
            System.out.print("要开始吗?(y/n) ");
            String start = input.next();  // 开始每一局游戏
            
            
            int perFist;   //用户出的拳
            int compFist;  //计算机出的拳
            
            while(start.equals("y")){
                /*出拳*/
                perFist = person.showFist();
                compFist = computer.showFist();
                /*裁决*/
                if((perFist == 1 && compFist == 1) || (perFist == 2 && compFist == 2) || (perFist == 3 && compFist == 3)){
                    System.out.println("结果:和局,真衰!嘿嘿,等着瞧吧 !
");  //平局
                }else if((perFist == 1 && compFist == 3) || (perFist == 2  && compFist == 1) || (perFist == 3 && compFist == 2)){
                    System.out.println("结果: 恭喜, 你赢了!");  //用户赢
                    person.score++;
                }else{
                    System.out.println("结果说:^_^,你输了,真笨!
");  //计算机赢
                    computer.score++;
                }
                count++;
                System.out.print("
是否开始下一轮(y/n):  ");
                start = input.next();    
            }
            /*显示结果*/
            showResult();            
            
            // 扩展功能3:循环游戏,直到退出系统
            System.out.print("
要开始下一局吗?(y/n):");
            exit = input.next();            
            System.out.println();
            // 扩展功能3结束
        }while(!exit.equals("n"));    
        
        System.out.println("系统退出!");
    }
    
    /**
     * 显示比赛结果
     */
    public void showResult(){
        /*显示对战次数*/
        System.out.println("---------------------------------------------------");
        System.out.println(computer.name + "  VS  " + person.name);
        System.out.println("对战次数:"+ count);
        
        // 扩展功能2:显示最终的得分
        System.out.println("
姓名	得分");        
        System.out.println(person.name+"	"+person.score);
        System.out.println(computer.name+"	"+computer.score+"
");
        // 扩展功能2结束
        
        /*显示对战结果*/
        int result = calcResult();
        if(result == 1){
            System.out.println("结果:打成平手,下次再和你一分高下!");
        }else if(result == 2){
            System.out.println("结果:恭喜恭喜!");   //用户获胜
        }else{ 
            System.out.println("结果:呵呵,笨笨,下次加油啊!");   //计算机获胜
        }
        System.out.println("---------------------------------------------------");
    }
    
    /**
     * 计算比赛结果
     * @return 1:战平;2:用户赢;3:电脑赢
     */
    public int calcResult(){
        if(person.score == computer.score){
              return 1; // 战平
        }else if(person.score > computer.score){
              return 2; // 用户赢
        }else{
              return 3; // 电脑赢
        }
        
    }
}

 

 

 
 

  
























 

 

 

 
























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