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