diff --git a/erp/sale/benefit.go b/erp/sale/benefit.go
index 0623b0f..e76c13e 100644
--- a/erp/sale/benefit.go
+++ b/erp/sale/benefit.go
@@ -11,33 +11,35 @@ type benefit struct {
 }
 
 type BenefitProductItem struct {
-	Id                 int64            `json:"id"`
-	ProductId          int64            `json:"productId"`
-	Serial             string           `json:"serial"`
-	CustomSerial       string           `json:"customSerial"`
-	Name               string           `json:"name"`
-	EngName            string           `json:"engName"`
-	Mold               int64            `json:"mold"`
-	FactoryId          int64            `json:"factoryId"`
-	FactoryName        string           `json:"factoryName"`
-	FactorySerial      string           `json:"factorySerial"`
-	SaleCount          int64            `json:"saleCount"`
-	Price              decimal.Decimal  `json:"price"`
-	Amount             decimal.Decimal  `json:"amount"`
-	AmountMinusTax     decimal.Decimal  `json:"amountMinusTax"`
-	Currency           string           `json:"currency"`
-	CurrencySymbol     string           `json:"currencySymbol"`
-	CurrencyName       string           `json:"currencyName"`
-	CurrencyRate       decimal.Decimal  `json:"currencyRate"`
-	MinusTaxRate       *decimal.Decimal `json:"minusTaxRate"`
-	SalePrice          decimal.Decimal  `json:"salePrice"`
-	SaleAmount         decimal.Decimal  `json:"saleAmount"`
-	SaleCurrency       string           `json:"saleCurrency"`
-	SaleCurrencySymbol string           `json:"saleCurrencySymbol"`
-	SaleCurrencyName   string           `json:"saleCurrencyName"`
-	SaleCurrencyRate   decimal.Decimal  `json:"saleCurrencyRate"`
-	SaleAmountCny      decimal.Decimal  `json:"saleAmountCny"`
-	ProfitAndLossCny   decimal.Decimal  `json:"profitAndLossCny"`
+	Id                 int64                 `json:"id"`
+	ParentId           int64                 `json:"parentId"`
+	ProductId          int64                 `json:"productId"`
+	Serial             string                `json:"serial"`
+	CustomSerial       string                `json:"customSerial"`
+	Name               string                `json:"name"`
+	EngName            string                `json:"engName"`
+	Mold               int64                 `json:"mold"`
+	FactoryId          int64                 `json:"factoryId"`
+	FactoryName        string                `json:"factoryName"`
+	FactorySerial      string                `json:"factorySerial"`
+	SaleCount          int64                 `json:"saleCount"`
+	Price              decimal.Decimal       `json:"price"`
+	Amount             decimal.Decimal       `json:"amount"`
+	AmountMinusTax     decimal.Decimal       `json:"amountMinusTax"`
+	Currency           string                `json:"currency"`
+	CurrencySymbol     string                `json:"currencySymbol"`
+	CurrencyName       string                `json:"currencyName"`
+	CurrencyRate       decimal.Decimal       `json:"currencyRate"`
+	MinusTaxRate       *decimal.Decimal      `json:"minusTaxRate"`
+	SalePrice          decimal.Decimal       `json:"salePrice"`
+	SaleAmount         decimal.Decimal       `json:"saleAmount"`
+	SaleCurrency       string                `json:"saleCurrency"`
+	SaleCurrencySymbol string                `json:"saleCurrencySymbol"`
+	SaleCurrencyName   string                `json:"saleCurrencyName"`
+	SaleCurrencyRate   decimal.Decimal       `json:"saleCurrencyRate"`
+	SaleAmountCny      decimal.Decimal       `json:"saleAmountCny"`
+	ProfitAndLossCny   decimal.Decimal       `json:"profitAndLossCny"`
+	Children           []*BenefitProductItem `json:"children"`
 }
 
 // Product @TITLE 获取产品