tryjs_addeventlistener_crossbrowser 在线代码实例

实例代码( Tip: 登录后体验更佳 )
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
</head>
<body>
<p> Internet Explorer 8 及更早IE版本不支持addEventListener() 方法。</p>
<p>该实例演示了所有浏览器兼容的解决方法。</p>
<button id="myBtn">点我</button>
<script>
var x = document.getElementById("myBtn");
if (x.addEventListener) {
    x.addEventListener("click", myFunction);
} else if (x.attachEvent) {
    x.attachEvent("onclick", myFunction);
}
function myFunction() {
    alert("Hello World!");
}
</script>
</body>
</html>
 
 
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运行结果
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