function addEvent(obj, eventType, callback, bubble){
if(obj.addEventListener){
obj.addEventListener(eventType, callback, bubble);
}else{
obj.attachEvent(eventType, callback, bubble);
}
}
<!doctype html>
<html lang="en">
<head>
<!--网站编码格式,UTF-8 国际编码,GBK或 gb2312 中文编码-->
<meta charset="UTF-8">
<meta name="Keywords" content="关键词一,关键词二">
<meta name="Description" content="网站描述内容">
<meta name="Author" content="">
<title>Document</title>
<!--css js 文件的引入-->
</head>
<body>
<div id="out">
<p>我是路人甲</p>
<div id="middle">
<div id="inner">最里面的</div>
</div>
<p>我是路人乙</p>
</div>
</body>
</html>
<script>
var out = document.getElementById('out');
var middle = document.getElementById('middle');
var inner = document.getElementById('inner');
//点击inner时,触发顺序为:inner-------middle------out
out.addEventListener('click',function(){alert("我是最外面的");},false);
middle.addEventListener('click',function(){alert("我是中间的");},false);
inner.addEventListener('click',function(){alert("我是最里面的");},false);
</script>
<script>
var out = document.getElementById('out');
var middle = document.getElementById('middle');
var inner = document.getElementById('inner');
//点击inner时,触发顺序为:out------inner-------middle
out.addEventListener('click',function(){alert("我是最外面的");},true);
middle.addEventListener('click',function(){alert("我是中间的");},true);
inner.addEventListener('click',function(){alert("我是最里面的");},true);
</script>
<script>
var out = document.getElementById('out');
var middle = document.getElementById('middle');
var inner = document.getElementById('inner');
//点击inner时,触发顺序为:out------inner-------middle
out.addEventListener('click',function(){alert("我是最外面的");},true);
middle.addEventListener('click',function(){alert("我是中间的");},false);
inner.addEventListener('click',function(){alert("我是最里面的");},false);
</script>
<script>
var out = document.getElementById('out');
var middle = document.getElementById('middle');
var inner = document.getElementById('inner');
//点击inner时,触发顺序为:out-------middle------inner
out.addEventListener('click',function(){alert("我是最外面的");},true);
middle.addEventListener('click',function(){alert("我是中间的");},true);
inner.addEventListener('click',function(){alert("我是最里面的");},false);
</script>
<script>
var out = document.getElementById('out');
var middle = document.getElementById('middle');
var inner = document.getElementById('inner');
//点击inner时,触发顺序为:middle-------inner------out
out.addEventListener('click',function(){alert("我是最外面的");},false);
middle.addEventListener('click',function(){alert("我是中间的");},true);
inner.addEventListener('click',function(){alert("我是最里面的");},false);
</script>
<script>
var out = document.getElementById('out');
var middle = document.getElementById('middle');
var inner = document.getElementById('inner');
//点击inner时,触发顺序为:out-------inner------middle
out.addEventListener('click',function(){alert("我是最外面的");},true);
middle.addEventListener('click',function(){alert("我是中间的");},false);
inner.addEventListener('click',function(){alert("我是最里面的");},true);
</script>
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