$(function(){ 
  $('#loginContainer .input-item').keyup(function(){
    if($('.userName').val() && $('.userEmail').val() && $('.userPassword').val()){
     $('.submitBtn').removeClass('disabledSubmit').addClass('activeSubmit')
    }else{
     $('.submitBtn').removeClass('activeSubmit').addClass('disabledSubmit')
    }
  })
	
	// ç 
jQuery.validator.addMethod("password", function(value, element) {   
    var tel = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{6,20}$/;
    return this.optional(element) || (tel.test(value));
}, "必须包含1个数字，1个大写字母和1个小写字母以及6-20个数字");

  $("#registerForm").validate({
    rules:{
        userName:"required",
        email:{
          required: true,
          email: true
        },
        password:{
          required:true,
          minlength:6,
          maxlength:22
        },
    },
    messages:{
        userName:"请输入用户名",
        email: {
          required: "请输入Email地址",
          email: "请输入正确的email地址"
        },
        password:{
          required: "请输入密码",
          minlength: "密码长度不能小于 6 个字母"
        },
    }
  });
  　
  });