如何使用 jQuery 通过类名选择元素?
jqueryweb developmentfront end technology更新于 2026/1/6 0:37:17
元素类选择器会选择所有与给定类匹配的元素。使用 css() 方法可以更改背景颜色。
您可以尝试运行以下代码，了解如何使用 jQuery 通过类名选择元素:
<html>
<head>
<title>jQuery Selector</title>
<script src = "https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
$(".big").css("background-color", "yellow");
});
</script>
</head>
<body>
<div class = "big" id="div1">
<p>This is first division of the DOM.</p>
</div>
<div class = "medium" id = "div2">
<p>This is second division of the DOM.</p>
</div>
<div class = "small" id = "div3">
<p>This is third division of the DOM</p>
</div>
</body>
</html>
