1.helloworld
<html>
<head>
<title>jquery one</title>
<script type="text/javascript" src="../js/jquery.js"></script>
<script type="text/javascript">
//第一个jquery练习,弹出对话框hello world!;
$(document).ready(function(){
alert("hello world!");
});
</script>
</head>
<body>
</body>
</html>
2.a.html
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>链式操作</title>
<script type="text/javascript" src="../js/jquery.js" ></script>
<script>
$(document).ready(function(){
$(".has_children").click(function(){
$(this).addClass("highlight")
.children("a").show().end()
.siblings().removeClass("highlight")
.children("a").hide();
})
})
</script>
<style>
#menu{300px;}
.has_children{background:#555;color:#fff;cursor:pointer;}
.highlight{color:#fff;backgounrd:green;}
div{padding:0;magin:10px 0;}
div a{background:#888;display:none;float:left;300px;}
</style>
</head>
<div id="menu">
<div class="has_children">
<span>第一章-知识</span>
<a>1.1-javascript和javascript库</a>
<a>1.2-加入jquery</a>
<a>1.3-编写简单jquery代码</a>
<a>1.4-jquery对象和DOM对象</a>
<a>1.5-解决jquery和其他库的冲突</a>
<a>1.6-jquery开发工具和插件</a>
<a>1.7-小结</a>
</div>
<div class="has_children">
<span>第二章-知识</span>
<a>2.1-javascript和javascript库</a>
<a>2.2-加入jquery</a>
<a>2.3-编写简单jquery代码</a>
<a>2.4-jquery对象和DOM对象</a>
<a>2.6-jquery开发工具和插件</a>
<a>2.7-小结</a>
</div>
<div class="has_children">
<span>第三章-知识</span>
<a>3.1-javascript和javascript库</a>
<a>3.2-加入jquery</a>
<a>3.3-编写简单jquery代码</a>
<a>3.6-jquery开发工具和插件</a>
<a>3.7-小结</a>
</div>
</div>
<body>
</body>
b.html
</html>
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>juqery转化为DOM</title>
<script type="text/javascript" src="../js/jquery.js" ></script>
<script>
/*
$(document).ready(function(){
var $cr=$("#cr");
var cr=$cr[0]; //或者cr=$cr.get(0);
$cr.click(function(){
if(cr.checked){
alert("感谢你的支持，你可以继续操作了！");
}
})
})
*/
$(document).ready(function(){
var $cr=$("#cr");
$cr.click(function(){
if($cr.is("checked")){
alert("感谢你的支持，你可以继续操作了！");
}
})
})
</script>
</head>
<input type="checkbox" id="cr" /><label for="cr" >我已经阅读了上面的制度</label>
<body>
</body>
</html>