"array", "price" => "array" ]; public function unit() { //单位 return $this->belongsTo(Unit::class); } public function owners() { //货主 return $this->belongsToMany(Owner::class,"owner_storage_price_model_owner","owner_storage_price_model_id","owner_id"); } public function timeUnit() { //计时单位 return $this->belongsTo(Unit::class,"time_unit_id"); } public function taxRate() { //税率 return $this->belongsTo(TaxRate::class); } }