有时候，我们可能不会在网页中<script src="/UploadFiles/2021-04-02/jquery.min.js">
复制代码 代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>动态加载Jquery库，不用创建Ajax请求。在 a 的 href 属性中写一段或多段代码</title>
<style type="text/css">
#message { margin: 20px 10px; color:Green; }
</style>
<script language="javascript" type="text/javascript">
function AjaxLoadJquerylibrary()
{
var d = document, s = d.getElementById('firebug-lite');
if (s != null)
return;
s = d.createElement('script');
s.type = 'text/javascript';
s.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.3.1/jquery.min.js';
d.body.appendChild(s);
document.getElementById("content").style.display = "block";
}
</script>
</head>
<body>
<div>
<input type="button" value="动态导入Jquery" onclick="AjaxLoadJquerylibrary();" /><br />
</div>
<div id="message">
</div>
<div id="content">
请输入您的名字：<input type="text" value="" id="txtUserName" /><br />
<a href="javascript:(function(){ var username = $('#txtUserName').val(); alert(username); })();void(0);">Jquery获取名字</a>
</div>
</body>
</html>