日期:2014-05-16  浏览次数:20467 次

javascript阻止事件冒泡
<!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" lang="gb2312"> 
<head> 
<title> 阻止JavaScript事件冒泡传递(cancelBubble 、stopPropagation)</title> 
<meta name="keywords" content="JavaScript,事件冒泡,cancelBubble,stopPropagation" /> 
<script type="text/javascript"> 
function doSomething (obj,evt) { 
var e=(evt)?evt:window.event; 
if (window.event) { 
e.cancelBubble=true; 
} else { 
//e.preventDefault(); 
e.stopPropagation(); 
} 
} 
</script> 
</head> 
<body> 
<div id="parent1" onclick="alert(this.id)" style="width:250px;background-color:yellow"> 
<p>This is parent1 div.</p> 
<div id="child1" onclick="alert(this.id)" style="width:200px;background-color:orange"> 
<p>This is child1.</p> 
</div> 
<p>This is parent1 div.</p> 
</div> 
<br /> 
<div id="parent2" onclick="alert(this.id)" style="width:250px;background-color:cyan;"> 
<p>This is parent2 div.</p> 
<div id="child2" onclick="doSomething(this,event);" style="width:200px;background-color:lightblue;"> 
<p>This is child2. Will bubble.</p> 
</div> 
<p>This is parent2 div.</p> 
</div> 
</body> 
</html> 

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