<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>事件函数</title>
</head>
<body>
<div id="div1">div1</div>
<input type="text" name="a" id="input1">
<a href="http://www.baidu.com"
target="_blank" id="a1">baidu</a>
<script src="dom2.js"></script>
</body>
</html>
var div1 = document.getElementById("div1");
div1.addEventListener("click",add);
var input1=document.getElementById("input1");
input1.addEventListener("keydown",add);
function add(event){
var e = event || window.event;//ie8
console.log(event);
// 取消默认操作
// event.preventDefault();
// 用return false 也可以达到 上面的效果
// 但是 必须用 a1.onclick = add;
return false
// ie8 event.returnValue = false;
}
var a1= document.getElementById("a1");
a1.addEventListener("click",add);
// a1.onclick = add;