diff --git a/ZR.Admin.WebApi/wwwroot/CodeGenTemplate/TplService.txt b/ZR.Admin.WebApi/wwwroot/CodeGenTemplate/TplService.txt
index 6d7e919..57f9bfb 100644
--- a/ZR.Admin.WebApi/wwwroot/CodeGenTemplate/TplService.txt
+++ b/ZR.Admin.WebApi/wwwroot/CodeGenTemplate/TplService.txt
@@ -1,4 +1,5 @@
-using SqlSugar;
+using System;
+using SqlSugar;
 using Infrastructure.Attribute;
 using ${options.ModelsNamespace};
 using ${options.ModelsNamespace}.Dto;