——猜数字

 

public static void guessNumber(int select){//接收输入数
 Scanner input = new Scanner(System.in);
 int level = 0 ;
 String str [ ] = {"次就中,鬼才","次就中,天才","次就中,人才"};
 switch(select){
  case 1 :
   level = 10 ; break;
  case 2 :
   level = 50 ; break;
  case 3 :
   level = 100 ; break;
  default :
   break;
 }
 System.out.println();
 int Num ,i;
 int lastNum = (int)(Math.random()  * (level - 1)) + 1;
 for(i = 0 ; i < str.length; i ++){
  Num = input.nextInt();
  if(Num == lastNum){
   System.out.println((i+1) + str [i]);
   break;
  }
  else if (Num > lastNum)
   System.out.println("猜的数大了");
  else if (Num < lastNum)
   System.out.println("猜的数小了");
 } 
  if(i == 3)
   System.out.println("\n3次都不中,废材");
}