public function render($view, $params = [])
 {
     $disease = $params['disease'];
     //查询右侧数据
     $symptom_rel = $this->symptom->getSymptomsByDisid($disease['id']);
     $disease_rel = $this->disease->getDiseaseDisByDisid($disease['id']);
     $doctor = $this->getDoctor($disease['id'], 0, 3);
     $right = ['disease' => $disease, 'symptom_rel' => $symptom_rel, 'disease_rel' => $disease_rel, 'expert' => $doctor];
     $this->right = $right;
     return parent::render($view, $params);
 }