数字排序的几种方法

<script type="text/javascript"> var testarr = [2,8,4,1,11,9,6] var length = testarr.length //冒泡排序法 for (let i = 0; i < length; i++ ) { for (let j = i + 1; j < length; j++) { if (testarr[i] >

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