JS点击子元素不触发父元素点击事件(js阻止冒泡)

js阻止冒泡
<html>
<title></title>
<head>
    <meta charset="utf-8">
    <style type="text/css">
        .divone{100px;height:100px;background:black;position: relative;cursor: pointer}
        .divchild{position: absolute;margin:10px;50px;height:50px;background:white;cursor: pointer}
    </style>
    <script type="text/javascript">
        function divone(){ 
            //这里是divone事件的代码 
            console.log('divone事件');
            stopPropagation();
        } 
        
        function divchild(){
            //这里是divchild事件的代码 
            console.log('divchild事件');
            stopPropagation();
        }

        function stopPropagation(e) {  
            e = e || window.event;  
            if(e.stopPropagation) { //W3C阻止冒泡方法  
                e.stopPropagation();  
            } else {  
                e.cancelBubble = true; //IE阻止冒泡方法  
            }  
        }
    </script>
</head>
<body>
    
    <div class="divone" onclick="divone(this)"> 
        
        <div class="divchild" onclick="divchild(this)"></div> 
        
    </div> 
 
</body>
</html>