import java.util.Scanner;class  Demo{ public static void main(String[] args)  { Scanner input = new Scanner(System.in); int num=1; int max=0; int min=0; int maa=0; while(num!=0){ System.out.println("请输入数据"); num = input.nextInt(); if(num==0){ break; }else if(num>max){ max=num; }else if(num<min { min=num; } } System.out.println(max+"   "+min); }}