//降序int[] ns2 = { 28, 12, 89, 73, 65,36, 18, 96, 50, 8};int index2 = 0;for(int i = ns2.length; i>0;i--){    for(int j = ns2.length -1; j > ns2.length-i ;j--){        index2 += 1;        if(ns2[j] > ns2[j-1]){            int tmp = ns2[j];            ns2[j] = ns2[j-1];            ns2[j-1] = tmp;        }    }}System.out.println("args = " + index2);System.out.println("ns2 = " + Arrays.toString(ns2));