$(function(){
           $("#frmV").validate(
               {
                   rules: {
                       email: {
                           required: true,
                           email: true
                       }
                       },
                       massages: {
                           email: {
                               required: "空",
                               email: "error"
                           }
                       },
                       errorPlacement: function(error, element){
                         error.appendTo(".tip");  
                       }
                  
               }
               );
           });