"Ⅰ类疫苗", 2=>"Ⅱ类疫苗" ]; //导入格式 protected $fillable = ['type','price',"name","remark","supplier",'stock','states']; public function getKcAttribute() { $id = $this->id; return OrganizationVaccine::where(['vaccine_id'=>$id])->sum('stock'); } public function organization() { return $this->hasOne(Organization::class,'id','org_id'); } public function organizationvaccines(){ return $this->hasMany(OrganizationVaccines::class,'vaccine_id'); } }