public function showDistricts($cityId)
 {
     $regionModel = new \Home\Model\RegionModel();
     $districts = $regionModel->showDistricts($cityId);
     for ($i = 0; $i < count($districts); $i++) {
         $regionId = $districts[$i]['region_id'];
         $showName = $districts[$i]['show_name'];
         $data .= $regionId . ":" . $showName . ";";
     }
     $this->ajaxReturn($data);
 }
 public function showRegister()
 {
     $regionModel = new \Home\Model\RegionModel();
     $provinces = $regionModel->showProvinces();
     $this->assign("provinces", $provinces);
     $this->display();
 }