xxxxxxxxxx<html><head><meta charset="utf-8"><title>W3Cschool教程(w3cschool.cn)</title></head><body><p>该实例使用 addEventListener() 方法向同个按钮中添加两个点击事件。</p><button id="myBtn">点我</button><script>var x = document.getElementById("myBtn");x.addEventListener("click", myFunction);x.addEventListener("click", someOtherFunction);function myFunction() { alert ("Hello World!")}function someOtherFunction() { alert ("函数已执行!")}</script></body></html>