jq.validate.js

<form id="form">
        <p>
            <label for="user">username</label>
            <input type="text" name="username" id="user"/>
        </p>
        <p>
            <label for="pass">passname</label>
            <input type="text" name="password" id="pass"/>
        </p>
        <p>
            <input type="submit" value="登陆" id="dl"/>
            <input type="submit" value="注册"/>
        </p>
        
</form>

validate(options) //返回:Validator// 验证所选的 FORM 

$(‘#form‘).validate({})  //用来绑定所需操作的form表单

$(function() {
        $(‘#form‘).validate({
            rules: {   //返回元素的验证规则 
                username: {   //绑定的name值
                    required: true, //必填选项
                    minlength:6  //最小长度
                    
                },
                password: {   //绑定的name值
                    required: true,  //必填项 
                    minlength:6        //最小长度
                }
            },
            messages: {  //验证错误时的提示
                username: { //绑定的name值
                    required: ‘必填‘,
                    minlength:‘最少6个字符‘
                },
                password: { //绑定的name值
                    required: ‘必填‘,
                    minlength:‘最少6个字符‘
                }
            },
            submitHandler: function() { //验证成功后执行
                
            },
            highlight:function(element,errorClass){ //验证失败时执行
                $(element).addClass(errorClass);
                $(element).fadeOut().fadeIn();
            }
        });
    })