<html>
<body>
<p>该实例使用 addEventListener() 方法在同一个按钮添加两个点击事件。</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 ("This function was also executed!")
}
</script>
</body>
</html>