数组元素排序 

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Examples</title>
<meta name="description" content="">
<meta name="keywords" content="">
<link href="" rel="stylesheet">
<script>
    window.onload=function(){
        var oBtn=document.getElementById("btn1");
        var oUl=document.getElementById("ul1");
        var oLi=document.getElementsByTagName("li");
        oBtn.onclick=function(){
           var arr=[];
            for(var i=0;i<oLi.length;i++){
                arr[i]=oLi[i];
            } 
            arr.sort(function(li1,li2){
                var n1=parseInt(li1.innerHTML);
                var n2=parseInt(li2.innerHTML);
                return n1-n2;

            });
            for(var j=0;j<arr.length;j++){
                 oUl.appendChild(arr[j]);
            }
           
        }
        
    }
</script>
</head>
<body>
    <input type="button" value="排序" id="btn1">
    <ul id="ul1">
        <li>3</li>
        <li>55</li>
        <li>32</li>
        <li>22</li>
        <li>87</li>
        <li>57</li>
        <li>33</li>
        <li>2</li>
    </ul>
</body>
</html>

 

posted @ 2017-12-16 21:22  IT文艺女  阅读(147)  评论(0)    收藏  举报