代码无效引用清理，试压包资料界面看板修改

SGGL/BLL/SysManage/LogService.cs

@@ -1,13 +1,12 @@
 namespace BLL
 {
-    using NPOI.SS.Formula.PTG;
     using System;
     using System.Linq;
     using System.Net;
 
     public static class LogService
     {
-        
+
 
         /// <summary>
         /// 添加操作日志