冒泡排序
1 var arry = [3, 2, 1, 4, 9]
//外层控制总共循环的趟数 2 for (var i = 0; i <= arry.length - 1; i++) {
//里层控制每次交换的次数; 3 for (var j = 0; j <= arry.length - i - 1; j++) { 4 if (arry[j] > arry[j + 1]) { 5 var temp = arry[j] 6 arry[j] = arry[j + 1] 7 arry[j + 1] = temp 8 } 9 } 10 } 11 console.log(arry)