diff --git a/ViewModel/MainWindowViewModel.cs b/ViewModel/MainWindowViewModel.cs
index e986d58..410293e 100644
--- a/ViewModel/MainWindowViewModel.cs
+++ b/ViewModel/MainWindowViewModel.cs
@@ -54,7 +54,7 @@ namespace formula_manage.ViewModel
         public string cdk_time;  //注册到期时间
         public string cdk_page = "Hidden";  //注册到期页面状态
         public string cdk_pageT;  //注册到期页面关闭时间
-        int cdk_pageT_T;////注册到期页面关闭时间计算
+        int cdk_pageT_T=-1;////注册到期页面关闭时间计算
 
         public string Sys_Time  //通知UI控件参数改变
         {
@@ -111,9 +111,9 @@ namespace formula_manage.ViewModel
                             if (string.Compare(D, DD) < 0)
                             {
                                 Cdk_page = "Visible";
-                                cdk_pageT_T = -1;   //防止触发倒计时
+                                //cdk_pageT_T = -1;   //防止触发倒计时
                             }
-                            else if (string.Compare(D, DD) < 3)
+                            else if ((int.Parse(D) - int.Parse(DD)) <= 3)//提前三天提醒
                             {
                                 Cdk_page = "Visible";
                                 cdk_pageT_T = 30;  //页面关闭倒计时30秒