看完下面的代码我们就明白了$()的用法.
index.html代码结构如下:
<html>
<head>
<meta http-equiv=”Content-Type” content=”text/html; charset=utf-8″ />
<title>JQuery测试</title>
<style type=”text/css”>
.p1 {
background: #ff0000;
}
.p2 {
background: #00ff00;
}
.p3{
background: #0000ff;
}
.myPCss{
font-size:36px;
}
</style>
<script language=”javascript” src=”jquery-1.3.2.js”>
</script>
<script language = “JavaScript” type=”text/javascript”>
//<
