修复bug

service/service_price.go

@@ -347,6 +347,9 @@ func (ps *PriceService) GenerateLadderPrice(sku model.LySku) model.LySku {
 	} else {
 		//fmt.Println(ladderPriceRatio)
 		ladderCount := len(sku.LadderPrice)
+		if len(priceRatioList) == 0 {
+			return sku
+		}
 		//走阶梯价
 		if ladderCount <= ladderPriceMiniProfitLevel {
 			for i := 0; i < ladderCount; i++ {