import java.util.Scanner; /** * switch实现石头/剪子/布并判断胜负 */ public class Switch { public static void main(String[] args) { System.out.println("please choice:"); System.out.println(" 1: 石头"); System.out.println(" 2: 剪刀"); System.out.println(" 3: 布"); Scanner scanner=new Scanner(System.in); int choice=scanner.nextInt(); // 用户输入: // 计算机随机数 1, 2, 3: int random =(int) Math.random() * 3; switch (choice) { // TODO: case 1-> { if (random==1) { System.out.println("我也出石头,打平!"); }else if(random==2) { System.out.println("我出剪刀,你赢啦!"); }else { System.out.println("我出布,你输了···"); } } case 2-> { if (random==1) { System.out.println("我出石头,你输了···"); }else if(random==2) { System.out.println("我也出剪刀,打平!"); }else{ System.out.println("我出布,你赢啦!"); } } case 3-> { if (random==1) { System.out.println("我出石头,你赢啦!"); }else if(random==2) { System.out.println("我出剪刀,你输了···"); }else { System.out.println("我也出布,打平!"); } } default ->System.out.println("请重新选择"); } } }
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