用java来写一个简单的猜拳小游戏

阳光穿透心脏的1/2处 2023-10-03 19:42 9阅读 0赞

package a1;
    
    import java.util.Scanner;
    
    public class Caiquan {
    	public static void main(String[] args) {
    
    		Scanner sc = new Scanner(System.in);
    		
    		int c = 1;
    		while (c == 1){
    	
    			System.out.println("玩家请出拳");
    			//玩家出拳
    			int b = sc.nextInt();
    			String bHand = getHand(b);
    			
    			// 2 电脑开始出拳(生成一个随机数)
    			int a = (int)(Math.random()*3);
    			String aHand = getHand(a);
    		
    			if((a == 0 && b == 2) || (a == 1 && b == 0) || (a ==2 && b ==1)) {
    				System.out.println("电脑出拳-" + aHand + ";玩家出拳-" + bHand + "；电脑胜利");
    				
    			}else if((a == 0 && b == 0) || (a == 1 && b == 1) || (a ==2 && b ==2)) {
    				System.out.println("电脑出拳-" + aHand + ";玩家出拳-" + bHand + "；平局");
    				
    			} else {
    				System.out.println("电脑出拳-" + aHand + ";玩家出拳-" + bHand + "；玩家胜利");
    			}
    			
    			System.out.println("是否继续？y-继续 n-退出");
    			String tar = sc.next();
    			
    			if("n".equals(tar)) {//equals()判断两个字符串的值是否相等
    				c = 2;
    			}
    	}
    		System.out.println("游戏结束！!!");
    	}
    	public static String getHand(int h) {
    		if(h == 0)return"剪刀";
    		if(h == 1)return"石头";
    		if(h == 2)return"布";
    		return"";
    	}
    
    	}

运行结果：

![f2c8be003e184943bd2a7e4db0c1f281.png][]

**关于键盘输入：**

//创建一个scanner类，开启键盘输入

Scanner sc = new Scanner(System.in);

//获取从键盘输入的值，并且将其转换为整数类型

int no = sc.nextInt();

既然说到这了，那我就演示一下这个**Scanner**

package abs;
    
    import java.util.Scanner;
    
    public class LX {
    	
    	public static void main(String[] arg) {
    		 System.out.println("输入一个数字");
    		 Scanner shuzi = new Scanner(System.in);
    		 int a = shuzi.nextInt();
    		 System.out.println("输入一个文字");
    		// Scanner wenzhi = new Scanner(System.in);
    		 String  b = shuzi.next();
    		 
    		 System.out.println("您输入的数字为:"+a);
    		 System.out.println("您输入的文字为:"+b);
    	}
    }

运行结果（直接在控制台输入就好）：

![7768756ffa134a97b1e6c148e4827fdc.png][]

[f2c8be003e184943bd2a7e4db0c1f281.png]: https://img-blog.csdnimg.cn/f2c8be003e184943bd2a7e4db0c1f281.png
[7768756ffa134a97b1e6c148e4827fdc.png]: https://img-blog.csdnimg.cn/7768756ffa134a97b1e6c148e4827fdc.png