js冒泡排序(从小到大)
<script>function bubbleSort(arr) {for (var j = 1; j < arr.length; j++) {for (var i = 0; i < arr.length - j; i++) {if (arr[i] > arr[i + 1]) {// 交换位置 var temp = arr[i];arr[i] = arr[i + 1];arr[i + 1] = temp}}}return arr;} var array = [1,7,2,3,9]; console.log(bubbleSort(array));</script>