源代码:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Wfuyu教程(wfuyu.com)</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>
运行结果：