import java.util.Scanner; public class Demo6{ public static void main(String[] args) { int[] array = {10,6,4,3,2,1}; // for (int i=0;i<array.length-1;i++) {//外层循环,控制轮数 for (int j=0;j<array.length-1-i;j++) { //j = array.length-1=5 if(array[j]>array[j+1]){//array[5]>array[6] int temp = array[j]; array[j] = array[j+1]; array[j+1] = temp; } } } for (int num :array ) { System.out.print(num+" "); } } }