rules: { 
email:{ 
validator: function(value){ 
return ...?$/i.test(value); 
}, 
message: 'Please enter a valid email address.' 
}, 
url: { 
validator: function(value){ 
return ...?$/i.test(value); 
}, 
message: 'Please enter a valid URL.' 
}, 
length: { 
validator: function(value, param){ 
var len = $.trim(value).length; 
return len >= param[0] && len <= param[1] 
}, 
message: 'Please enter a value between {0} and {1}.' 
}, 
remote: { 
validator: function(value, param){ 
var data = {}; 
data[param[1]] = value; 
var response = $.ajax({ 
url:param[0], 
dataType:'json', 
data:data, 
async:false, 
cache:false, 
type:'post' 
}).responseText; 
return response == 'true'; 
}, 
message: 'Please fix this field.' 
} 
}

(function($) { 
/** 
* jQuery EasyUI 1.4 --- 功能扩展 
* 
* Copyright (c) 2009-2015 RCM 
* 
* 新增 validatebox 校验规则 
* 
*/ 
$.extend($.fn.validatebox.defaults.rules, { 
idcard: { 
validator: function(value, param) { 
return idCardNoUtil.checkIdCardNo(value); 
}, 
message: '请输入正确的身份证号码' 
}, 
checkNum: { 
validator: function(value, param) { 
return /^([0-9]+)$/.test(value); 
}, 
message: '请输入整数' 
}, 
checkFloat: { 
validator: function(value, param) { 
return /^[+|-]?([0-9]+\.[0-9]+)|[0-9]+$/.test(value); 
}, 
message: '请输入合法数字' 
} 
}); 
})(jQuery); 

<pre name="code" class="javascript">
<span style="font-size:18px;">
<script src="#WEBROOT()/static/jseasyui/jquery.easyui.min.js" type="text/javascript" ></script> 
<script src="#WEBROOT()/static/js/comm/easyui-extend-rcm.js" type="text/javascript"></script>
</span> 

<pre name="code" class="html"><span style="font-size:18px;"><div id="dlg" class="easyui-dialog" style="width:300px; height:300px; vertical-align: middle;" closed="true" title='添加中药' buttons="#dlg-buttons"> 
<div id="editForm" style="background:'';padding:20px;width:200px;height:200px; display:none;"> 
<form id="form" method="post"> 
<div style="padding-left:16px;padding-top:20px;" hidden="true"> 
<input type="text" name="dlg_drugId" id="dlg_drugId" hidden="true" /> 
</div> 
<div style="padding-top:10px;padding-left:40px;"> 
<label for="dlg_name">药物:</label> 
<input type="text" name="dlg_name" id="dlg_name" class="easyui-validatebox" readonly="readonly" /> 
</div> 
<div style="padding-top:10px;padding-left:40px;"> 
<label for="dlg_price">单价:</label> 
<input type="text" name="dlg_price" id="dlg_price" <span style="color:#ff0000;">class="easyui-validatebox" data-options="required:true,validType:'checkFloat'"</span> /> 
</div> 
<div style="padding-top:10px;padding-left:40px;"> 
<label for="dlg_purchase_price">进价:</label> 
<input type="text" name="dlg_purchase_price" id="dlg_purchase_price" <span style="color:#ff0000;">class="easyui-validatebox" data-options="validType:'checkFloat'"</span> /> 
</div> 
<div style="padding-top:10px;padding-left:40px;"> 
<label for="dlg_stock">库存:</label> 
<input type="text" name="dlg_stock" id="dlg_stock" <span style="color:#ff0000;">class="easyui-validatebox" data-options="validType:'checkNum'"</span> /> 
</div> 
<div style="padding-top:10px;padding-left:40px;" align="center"> 
<input type="button" value="保存" onclick="saveTCMDrugPublicMapped()" class="bt_style" /> 
</div> 
</form> 
</div> 
</div></span> 

<input id="vv" required="true" validType="email">

$(":submit").click(function(){
if(!$("#form").form('validate')){
return false;
}
})
#form是<form>表单的ID