diff --git a/JianGongYun/App.config b/JianGongYun/App.config
index f7d7887..413d4d0 100644
--- a/JianGongYun/App.config
+++ b/JianGongYun/App.config
@@ -5,6 +5,6 @@
         <add key="SDKAppKEY" value="6ee2586282eb8ab5bff3f917b44500c4ffd9bbd3d820258b1fa8cdd470cfd1ee"/>
         <add key="LIVEAppID" value="1252883401"/>
         <add key="LIVEBizid" value="126866"/>
-      <add key="RoomId" value =""/>
+      <add key="RoomId" value ="654657754"/>
     </appSettings>
 </configuration>
diff --git a/JianGongYun/App.xaml.cs b/JianGongYun/App.xaml.cs
index 33aa09c..c44ffeb 100644
--- a/JianGongYun/App.xaml.cs
+++ b/JianGongYun/App.xaml.cs
@@ -13,6 +13,5 @@ namespace JianGongYun
     /// </summary>
     public partial class App : Application
     {
-
     }
 }
diff --git a/JianGongYun/TRTC/LiveClassroom.cs b/JianGongYun/TRTC/LiveClassroom.cs
index 9092bc2..d5d9007 100644
--- a/JianGongYun/TRTC/LiveClassroom.cs
+++ b/JianGongYun/TRTC/LiveClassroom.cs
@@ -100,7 +100,7 @@ namespace JianGongYun.TRTC
                 strRoomId = CurrentClassroomEntity.TeacherId,
                 role = TRTCRoleType.TRTCRoleAnchor,
                 streamId = CurrentClassroomEntity.TeacherId,//旁路CDN流名字为教师id
-                userDefineRecordId= CurrentClassroomEntity.TeacherId//指定id录制教师
+                userDefineRecordId = CurrentClassroomEntity.TeacherId//指定id录制教师
             };
             lTRTCCloud.enterRoom(ref roomPars, TRTCAppScene.TRTCAppSceneLIVE);//创建房间
 
@@ -128,7 +128,7 @@ namespace JianGongYun.TRTC
             _RecoderDir = $"{classroomEntity.ClassHead}_{classroomEntity.ClassSubHead}";
 
 
-            callerWindow.Hide();//隐藏调用窗口
+            callerWindow?.Hide();//隐藏调用窗口
             CurrentLiveWindow.Show();
         }
 
@@ -493,7 +493,7 @@ namespace JianGongYun.TRTC
                         }
                     }
 
-                    Skip1:
+                Skip1:
 
                     if (liveWinMode.CameraRunning)//摄像头分享中
                     {
@@ -521,7 +521,7 @@ namespace JianGongYun.TRTC
                         }
                     }
 
-                    Skip2:
+                Skip2:
 
                     mats.Enqueue(BackgroundFrame.CvtColor(ColorConversionCodes.BGRA2BGR));
                     Interlocked.Increment(ref runFps);
@@ -712,7 +712,7 @@ namespace JianGongYun.TRTC
         {
             CurrentLiveWindow = null;
             CurrentClassroomEntity = null;
-            CallerWindow.Show();//还原调用者窗口
+
 
             lTXDeviceManager.Dispose();
             lTXDeviceManager = null;
@@ -721,6 +721,13 @@ namespace JianGongYun.TRTC
             ITRTCCloud.destroyTRTCShareInstance();//销毁TRTC实例
             lTRTCCloud.Dispose();
             lTRTCCloud = null;
+            if (CallerWindow == null)
+            {
+                //关闭程序
+                Application.Current.Shutdown();
+                return;
+            }
+            CallerWindow.Show();//还原调用者窗口
         }
 
 
diff --git a/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs b/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs
index 0134eb5..83010f7 100644
--- a/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs
+++ b/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs
@@ -170,6 +170,10 @@ namespace JianGongYun.TRTC.Windows
                 LiveClassroom.StopVideoSub(AfterLiveSubViewWrap);
 
                 this.Hide();
+                if (LiveClassroom.CallerWindow == null) {
+                    Application.Current.Shutdown();
+                    return;
+                }
                 LiveClassroom.CallerWindow.Show();//还原调用者窗口
             }
 
diff --git a/JianGongYun/Views/Login.xaml.cs b/JianGongYun/Views/Login.xaml.cs
index 5a20cfe..f885528 100644
--- a/JianGongYun/Views/Login.xaml.cs
+++ b/JianGongYun/Views/Login.xaml.cs
@@ -1,6 +1,9 @@
-using AduSkin.Controls.Metro;
+using AduSkin.Controls;
+using AduSkin.Controls.Metro;
+using JianGongYun.TRTC;
 using System;
 using System.Collections.Generic;
+using System.Configuration;
 using System.Text;
 using System.Windows;
 using System.Windows.Controls;
@@ -22,9 +25,21 @@ namespace JianGongYun.Views
         {
             InitializeComponent();
             BorderBrush = new SolidColorBrush(color: Color.FromRgb(42, 43, 48));
-            MainWindow main = new MainWindow();
-            main.Show();
-            this.Hide();
+            var roomId = ConfigurationManager.AppSettings["RoomId"];
+            if (string.IsNullOrWhiteSpace(roomId))
+            {
+                MessageBox.Show("未配置房间号！","警告", MessageBoxButton.OKCancel,MessageBoxImage.Error);
+                Application.Current.Shutdown();
+            }
+            LiveClassroom.EnterTheClassroom(null,
+                                            new TRTC.Models.ClassroomEntity
+                                            {
+                                                ClassHead = "课程1",
+                                                ClassSubHead = "章节1",
+                                                TeacherId = roomId,
+                                                TeacherName = "王大锤"
+                                            });
+            this.Close();
         }
     }
 }