tryjs_addeventlistener_add_many2 在线代码实例

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
</head>
<body>
<p>实例使用 addEventListener() 方法在同一个按钮中添加多个事件。</p>
<button id="myBtn">点我</button>
<p id="demo"></p>
<script>
var x = document.getElementById("myBtn");
x.addEventListener("mouseover", myFunction);
x.addEventListener("click", mySecondFunction);
x.addEventListener("mouseout", myThirdFunction);
function myFunction() {
    document.getElementById("demo").innerHTML += "Moused over!<br>"
}
function mySecondFunction() {
    document.getElementById("demo").innerHTML += "Clicked!<br>"
}
function myThirdFunction() {
    document.getElementById("demo").innerHTML += "Moused out!<br>"
}
</script>
</body>
</html>
 
 
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运行结果
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