官网：https://jqueryvalidation.org/

//自定义验证用户名长度
    $.validator.addMethod("userLen", function(value, element, param) {
        var length = value.length;
        for(var i = 0; i < value.length; i++){
            if(value.charCodeAt(i) > 127){
                length++;
            }
        }
      return this.optional(element) || ( length >= param[0] && length <= param[1]);  
    }, $.validator.format("请确保输入的值在{0}-{1}个字节之间(一个中文字算2个字节)"));

    //自定义验证用户名字符
    $.validator.addMethod("userStrType", function(value, element, param) {
        var pre = /^[A-Za-z0-9\u4e00-\u9fa5]+$/u;
        return this.optional(element) || (pre.test(value));
    }, $.validator.format("请输入字母、数字、汉字"));

   
     //自定义密码验证
     $.validator.addMethod("password", function(value, element, param) {
        var pre = /[\u4e00-\u9fa5\s]+/u;
        return this.optional(element) || (!pre.test(value));
    }, $.validator.format("密码不得包含空格和中文"));

    //自定义手机号验证
    $.validator.addMethod("isMobile", function(value,element) {
        var length = value.length;
        var mobile = /^1[3456789]\d{9}$/;
        return this.optional(element) || (length == 11 && mobile.test(value));
    }, "请正确填写您的联系电话");


    //验证
    var validator = $("#loginForm").validate({
        //debug:true, //调试模式，即使验证成功也不会跳转到目标页面
        rules: {
            username: {
                required: true,
                userLen:[4,14],
                userStrType:true
            },
            password: {
                required: true,
                rangelength:[6,14],
                password: true
            },
            code: {
                required: true,
                rangelength: [4,4]
            },
            mobile: {
                required: true,
                isMobile:true
            },
            mobileCode:{
                required: true,
                rangelength: [4,4]
            },
        },
        messages: {
            username: {
                required: "请输入用户名"
            },
            mobile: {
                required: "请输入手机号"
            },
            password: {
                required: "请输入密码",
                rangelength:"密码不正确"
            },
            code: {
                required: "请输入验证码",
                rangelength: "验证码不正确"
            },
            mobileCode: {
                required: "请输入验证码",
                rangelength: "验证码不正确"
            }
        },
        submitHandler:function(form){
            send();
        },
        success:function(label){ //成功验证后执行
           
            // label.text('').append('<span class="checked iconfont icon-success"></span>'); 
        },
        //errorPlacement: function(error, element); //错误信息位置设置方法
        //error.appendTo( element.parent().next() ); //这里的element是录入数据的对象
        //是否在获取焦点时验证 
        //onfocusout:false, 
        //是否在敲击键盘时验证 
        //onkeyup:false, 
        //focusInvalid:true, //提交表单后，（第一个）未通过验证的表单获得焦点 
        //focusCleanup:true, //当未通过验证的元素获得焦点时，移除错误提示 
    });