diff --git a/Learun.Framework.Ultimate V7/Learun.Application.Web/Areas/LR_SystemModule/Controllers/AnnexesController.cs b/Learun.Framework.Ultimate V7/Learun.Application.Web/Areas/LR_SystemModule/Controllers/AnnexesController.cs
index f82ee1ab0..65cb4b0ef 100644
--- a/Learun.Framework.Ultimate V7/Learun.Application.Web/Areas/LR_SystemModule/Controllers/AnnexesController.cs	
+++ b/Learun.Framework.Ultimate V7/Learun.Application.Web/Areas/LR_SystemModule/Controllers/AnnexesController.cs	
@@ -270,7 +270,8 @@ namespace Learun.Application.Web.Areas.LR_SystemModule.Controllers
                     Response.ContentType = "application/pdf";
                     break;
             }
-            Response.Charset = "GB2312";
+            //Response.Charset = "GB2312";
+            Response.Charset = "utf-8"; //修改txt文件预览乱码
             Response.WriteFile(filepath);
             //Response.BinaryWrite(ms.ToArray());
         }