5:     System.out.print("請出拳（1、剪刀，2、石頭，3、布）：");

  6:     Scanner in=new Scanner(System.in);

  7:     int People=in.nextInt();

  8:     int Computer=(int)(Math.random()*3)+1;

  9:     String MarkPeople="人";

 10:     String MarkComputer="電腦";

 11:     switch(People){//和以下的switch一樣，為了輸出什么拳頭

 12:       case 1:MarkPeople="剪刀";

 13:       break;

 14:       

 15:       case 2:MarkPeople="石頭";

 16:       break;

 17:       

 18:       case 3:MarkPeople="布";

 19:       break;

 20:     }

 21:     switch(Computer){

 22:       case 1:MarkComputer="剪刀";

 23:       break;

 24:       

 25:       case 2:MarkComputer="石頭";

 26:       break;

 27:       

 28:       case 3:MarkComputer="布";

 29:       break;    

 30:     }

 31: //以下if（黃色部分）是出拳算法

 32:     if(People==Computer){

 33:       System.out.println("/n☆平局☆/n"+"  你出的是："+MarkPeople+"，電腦出的是："+MarkComputer);

 34:     }

 35:     else if(People==1&&Computer==3||People==2&&Computer==1||People==3&&Computer==2){

 36:       System.out.println("/n☆你贏了☆/n"+"  你出的是："+MarkPeople+"，電腦出的是："+MarkComputer);

 37:     }else{

 38:       System.out.println("/n☆你輸了☆/n"+"  你出的是："+MarkPeople+"，電腦出的是："+MarkComputer);

 39:     }

 40:   }

 41: }