结合上面的，今天写一下validate的使用方法。
validate（）验证所选的form。
validate 方法返回一个 Validator 对象。Validator 对象有很多方法可以用来引发校验程序或者改变 form 的内容。
制作简单的响应式幻灯片
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本站介绍了很多 jQuery 幻灯片插件，它们都很优秀，且功能强大，应用在中大型页面上很合适。但如果你的页面很简单，只想要一个简单纯粹的幻灯片效果，这些插件可能略显臃肿。今天我们不用任何插件，写一个简单的响应式幻灯片。
validate（）的可选项：
submitHandler：通过验证后运行的函数，里面要加上表单提交的函数，否则表单不会提交。
<span class="pln">$<span class="pun">(<span class="str">"#demoForm"<span class="pun">).<span class="pln">validate<span class="pun">({<span class="pln">
submitHandler<span class="pun">:<span class="kwd">function<span class="pun">(<span class="pln"><span class="pun">)<span class="pln"> <span class="pun">{<span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"> alert('校验全部通过！') <span class="pun">}<span class="pln"><span class="pun">})<br/><br/><span style="font-family: "Microsoft YaHei"; font-size: 16px">ignore：忽略某个元素不校验<br/><span style="font-size: 14px">ignore:'#pass2'//忽略某个元素不校验<br/><span style="font-size: 16px">rules：自定义规则，key:value 的形式，key 是要验证的元素，value 可以是字符串或对象。<br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span><span class="pln">$<span class="pun">(<span class="str">"#demoForm"<span class="pun">).<span class="pln">validate<span class="pun">({<span class="pln">
rules<span class="pun">:{<span class="pln">
name<span class="pun">:<span class="str">"required"<span class="pun">,<span class="pln">
email<span class="pun">:{<span class="pln">
required<span class="pun">:<span class="kwd">true<span class="pun">,<span class="pln">
email<span class="pun">:<span class="kwd">true<span class="pln"><span class="pun">}<span class="pln"><span class="pun">}<span class="pln"><span class="pun">})<br/><span style="font-family: "Microsoft YaHei"; font-size: 16px">messages：自定义的提示信息，key:value 的形式，key 是要验证的元素，value 可以是字符串或函数。<br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span><span class="pln">$<span class="pun">(<span class="str">"#demoForm"<span class="pun">).<span class="pln">validate<span class="pun">({<span class="pln">
rules<span class="pun">:{<span class="pln">
name<span class="pun">:<span class="str">"required"<span class="pun">,<span class="pln">
email<span class="pun">:{<span class="pln">
required<span class="pun">:<span class="kwd">true<span class="pun">,<span class="pln">
email<span class="pun">:<span class="kwd">true<span class="pln"><span class="pun">}<span class="pln"><span class="pun">},<span class="pln">
messages<span class="pun">:{<span class="pln">
name<span class="pun">:<span class="str">"Name不能为空"<span class="pun">,<span class="pln">
email<span class="pun">:{<span class="pln">
required<span class="pun">:<span class="str">"E-mail不能为空"<span class="pun">,<span class="pln">
email<span class="pun">:<span class="str">"E-mail地址不正确"<span class="pln"><span class="pun">}<span class="pln"><span class="pun">}<span class="pln"><span class="pun">})<br/><span style="font-family: "Microsoft YaHei"; font-size: 16px">OnSubmit：类型 Boolean，默认 true，指定是否提交时验证。<br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>$("#demoForm").validate({ onsubmit:false })<br/>
<span class="pln"><span class="pun"><span class="str"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="str"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="kwd"><span class="pun"><span class="pln"><span class="pun"><span class="kwd"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span style="font-family: "Microsoft YaHei"; font-size: 16px">onfocusout：类型 Boolean，默认 true，指定是否在获取焦点时验证。</span><br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
<br/>
$("#demoForm").validate({ onfocusout:false })<span class="pln"><span class="pun"><span class="str"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="kwd"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span style="font-family: "Microsoft YaHei"; font-size: 16px"><span style="font-size: 14px"><span style="font-size: 16px"><br/>onkeyup：类型 Boolean，默认 true，指定是否在敲击键盘时验证。<br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
$("#demoForm").validate({ onkeyup:false })<span class="pln"><span class="pun"><span class="str"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="kwd"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span style="font-family: "Microsoft YaHei"; font-size: 16px"><span style="font-size: 14px"><span style="font-size: 16px"><br/>onclick：类型 Boolean，默认 true，指定是否在鼠标点击时验证（一般验证 checkbox、radiobox）。<br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
$("#demoForm")).validate({ onclick:false })<span class="pln"><span class="pun"><span class="str"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="kwd"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span style="font-family: "Microsoft YaHei"; font-size: 16px"><span style="font-size: 14px"><span style="font-size: 16px"><br/>focusInvalid：类型 Boolean，默认 true。提交表单后，未通过验证的表单（第一个或提交之前获得焦点的未通过验证的表单）会获得焦点。<br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
$("#demoForm").validate({ focusInvalid:false })<span class="pln"><span class="pun"><span class="str"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="kwd"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span style="font-family: "Microsoft YaHei"; font-size: 16px"><span style="font-size: 14px"><span style="font-size: 16px"><br/>focusCleanup：类型 Boolean，默认 false。当未通过验证的元素获得焦点时，移除错误提示（避免和 focusInvalid 一起使用）<br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
$("#demoForm").validate({ focusCleanup:true })<span class="pln"><span class="pun"><span class="str"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="kwd"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span style="font-family: "Microsoft YaHei"; font-size: 16px"><span style="font-size: 14px"><span style="font-size: 16px"><br/>errorClass：类型 String，默认 "error"。指定错误提示的 css 类名，可以自定义错误提示的样式。<br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
$("#demoForm").validate({ errorClass:"invalid" })<span class="pln"><span class="pun"><span class="str"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="kwd"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span style="font-family: "Microsoft YaHei"; font-size: 16px"><span style="font-size: 14px"><span style="font-size: 16px"><br/>errorElement：类型 String，默认 "label"。指定使用什么标签标记错误。<br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
$(".selector").validate
errorElement:"em"})<span class="pln"><span class="pun"><span class="str"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="kwd"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span class="pln"><span class="pun"><span style="font-family: "Microsoft YaHei"; font-size: 16px"><span style="font-size: 14px"><span style="font-size: 16px"><br/>highlight：可以给未通过验证的元素加效果、闪烁等。<br/></span></span><br/></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
