注销按钮错误修改

UAS-MES/Main.cs

@@ -241,7 +241,7 @@ namespace UAS_MES
             if (logout_confirm == "Yes")
             {
                 //注销的时候切换回默认数据库
-                SystemInf.ConnectionString = ConfigurationManager.ConnectionStrings["MES"].ConnectionString;
+                SystemInf.ConnectionString = Properties.Settings.Default.Properties["MES"].DefaultValue.ToString();
                 DataHelper.DBConnectionString = SystemInf.ConnectionString;
                 //清除上个用户的权限信息
                 SystemInf.Caller.Clear();