Jas*_*ang 1 javascript css dom
<html>
<head>
<title>Events!</title>
<!-- Loading my CSS -->
<link rel="stylesheet" type="text/css" href="css/styles.css">
</head>
<body>
<div id="box-container">
<div class="box" id="box1">I'm a box</div>
<div class="box" id="box2">I'm a box</div>
<div class="box" id="box3">I'm a box</div>
</div>
<div class="box" id="tricky-box">Tricky box</div>
<button id="secret-button">Super Secret</button>
<input id="secret-input"></input>
<!-- Ignore this stuff till later -->
<br>
<hr>
<hr>
<hr>
<br>
<div class="d1">1
<div class="d2">2
<div class="d3">3</div>
</div>
</div>
<!-- Loading my JS -->
<script src="js/myapp.js" type="text/javascript"></script>
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所以我希望box2在mouseon上将颜色改为红色,我想知道这是正确的:
window.onload = function() {
box2.onmouseover = function(event){
box2.setAttribute = ("style", "background-color: red;");
}
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颜色没有改变.显然,我做错了什么.有谁知道这个问题?谢谢.
setAttribute 是一个方法,而不是一个对象属性.
您可以执行DOM样式对象:
box2.style.backgroundColor = "red";
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或正确的setAttribute方法:
box2.setAttribute("style","background-color:red");
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有关文档,请参阅MDN.
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