增加系统配置接口

controllers/order.go

@@ -507,9 +507,12 @@ func (this *OrderController) ExportProductOrder() {
 	}
 	var ListView []*models.ProductOrderView
 	var wg sync.WaitGroup
+	wg.Add(len(List))
 	for _, orderItem := range List {
 		go func(orderItem *models.ProductOrder) {
-			defer wg.Done()
+			defer func() {
+				wg.Done()
+			}()
 			view := &models.ProductOrderView{
 				OrderID:       orderItem.OrderId,
 				RealName:      orderItem.RealName,