这个形参e怎么理解?是把点击这个动作传给了e吗?求大神指教!!!

<html>
<head>
<title>取消<a>标签的默认动作</title>
</head>
<body>
<a id="demo" href="http://www.baidu.com" target="_blank">点击这里试试</a>
<script type="text/javascript">
document.getElementById("demo").onclick=function(e){
var eve = e || window.event;
try{  // 使用 try...catch 语句避免浏览器出现错误提示
eve.preventDefault();  // 非 IE 浏览器
}catch(e){
eve.returnValue = false;  // IE8.0 及其以下版本
}
}
</script>
</body>
</html>


慕数据5775487
浏览 1323回答 2
2回答

杰杰就是我

形参e的意思 是  当你点击的时候会发生一个事件,  而这个事件的所有东西都在e中   ,  e就是event的简写,  也可以写成event 

慕瓜9220888

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