JavaScript数字排序

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style>
	#ul1{background:red;}
	#ul2{background: yellow;}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script>
	window.onload=function()
	{
		var oBtn=document.getElementById('btn1');
		var oUl=document.getElementById('ul1');
		oBtn.onclick=function()
		{
			//获取ul1里面所有的li
			var aLi=oUl.getElementsByTagName('li');
			//appendChild
			//1.先移出父级
			//2.添加到新的父级
			//oUl2.appendChild(aLi[0]);
			var arr=[];
			//1.转成数组
			for(var i=0;i<aLi.length;i++)
			{
				arr[i]=aLi[i];	
			}
			//2.数组排序
			arr.sort(function(li1,li2){
				return parseInt(li1.innerHTML)-parseInt(li2.innerHTML);
			}); 
			//3.重新插入
			for(var j=0; j<arr.length;j++)
			{
				oUl.appendChild(arr[j]);	
			}
		}
	};
</script>
</head>

<body>
	<input id="btn1" type="button" value="移动Li" />
	<ul id="ul1">
		<li>32</li>
		<li>12</li>
		<li>89</li>
		<li>9</li>
		<li>18</li>
	</ul>
</body>
</html>

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转载自blog.csdn.net/qq_37995109/article/details/85250497
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