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  • 妙味——getByClass

    <!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" xml:lang="en">
    <head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
    <title>Document</title>
    <script>
    function getByClass(oParent,sClass){
        var aEle = oParent.getElementsByTagName('*');
        var aResult = [];
        var i = 0;
    
        for(var i=0;i<aEle.length;i++){
            if(aEle[i].className == sClass){
                aResult.push(aEle[i]);
            }
        }
        return aResult;
    }
    
    
    window.onload=function(){
        var oUl = document.getElementById('ul1');
        var aBox = getByClass(oUl,'box');
        var i = 0;
    
        for(var  i=0;i<aBox.length;i++){
            aBox[i].style.background='red';    
        }
    
    }
    </script>
    </head>
    <body>
        <ul id="ul1">
            <li></li>
            <li class="box"></li>
            <li></li>
            <li class="box"></li>
            <li class="box"></li>
            <li></li>
            <li></li>
        </ul>
    </body>
    </html>
    高否?富否?帅否? 否? 滚去学习!
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  • 原文地址:https://www.cnblogs.com/baixc/p/3458414.html
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