diff --git a/MainWindow.xaml b/MainWindow.xaml
index 239a3c0..177da8f 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -221,6 +221,7 @@
             <TextBlock Height="50" Margin="0,0,0,100" TextWrapping="Wrap" Text="Contact SUNLIGHT Reactivate" Width="500" FontSize="34" HorizontalAlignment="Center" VerticalAlignment="Center"/>
             <Button Content="Reactivate" HorizontalAlignment="Center" Height="50" Margin="200,100,0,0" VerticalAlignment="Center" Width="150" FontSize="24" BorderBrush="{x:Null}" Background="#FFDFDFDF" Click="CDKEY_SET"/>
             <Button Content="Contact" HorizontalAlignment="Center" Height="50" Margin="0,100,200,0" VerticalAlignment="Center" Width="150" FontSize="24" BorderBrush="{x:Null}" Background="#FFDFDFDF" Click="HELP"/>
+            <TextBlock Height="50" Margin="0,0,0,0" TextWrapping="Wrap" Text="{Binding Cdk_pageT}" Width="500" FontSize="34" HorizontalAlignment="Right" VerticalAlignment="Bottom"/>
         </Grid>
 
     </Grid>
diff --git a/ViewModel/MainWindowViewModel.cs b/ViewModel/MainWindowViewModel.cs
index 6f1a36b..e986d58 100644
--- a/ViewModel/MainWindowViewModel.cs
+++ b/ViewModel/MainWindowViewModel.cs
@@ -53,6 +53,8 @@ namespace formula_manage.ViewModel
         public string sys_Time;  //显示系统时间
         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
 
         public string Sys_Time  //通知UI控件参数改变
         {
@@ -70,6 +72,11 @@ namespace formula_manage.ViewModel
             get { return cdk_page; }
             set { cdk_page = value; OnPropertyChanged("Cdk_page"); }
         }
+        public string Cdk_pageT  //通知UI控件参数改变
+        {
+            get { return cdk_pageT; }
+            set { cdk_pageT = value; OnPropertyChanged("Cdk_pageT"); }
+        }
 
         string TEXT_SQLIP;
         string TEXT_SQLNAME;
@@ -95,22 +102,25 @@ namespace formula_manage.ViewModel
                     string MM = DateTime.Now.ToString("MM");
                     string DD = DateTime.Now.ToString("dd");
 
-                    cdk_time = "Expires time: " + Y +"/"+ M +"/"+ D+ "Hidden";
+                    Cdk_time = "Expires time: " + Y +"/"+ M +"/"+ D;
 
                     if (string.Compare(Y, YY) < 0)
                     {
-                        cdk_page = "Visible";
-                    }
-                    else if (string.Compare(M, MM) < 0)
-                    {
-                        cdk_page = "Visible";
-                    }
-                    else if (string.Compare(D, DD) < 0)
-                    {
-                        cdk_page = "Visible";
+                        if (string.Compare(M, MM) < 0)
+                        {
+                            if (string.Compare(D, DD) < 0)
+                            {
+                                Cdk_page = "Visible";
+                                cdk_pageT_T = -1;   //防止触发倒计时
+                            }
+                            else if (string.Compare(D, DD) < 3)
+                            {
+                                Cdk_page = "Visible";
+                                cdk_pageT_T = 30;  //页面关闭倒计时30秒
+                            }
+                        }
                     }
 
-                    
                 }
             }
         }
@@ -252,11 +262,18 @@ namespace formula_manage.ViewModel
         void Tick_Event_1S(object sender, EventArgs e)//Tick_Event周期执行事件
         {
             Sys_Time = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
+
+            if (cdk_pageT_T > 0)  //提示注册画面关闭倒计时
+            {
+                cdk_pageT_T--;
+                Cdk_pageT = cdk_pageT_T.ToString();
+                if(cdk_pageT_T == 1) Cdk_page = "Hidden";
+            }
+
         }
         void Tick_Event_1h(object sender, EventArgs e)//Tick_Event周期执行事件
         {
             CDkey_();
-
         }
     }