diff --git a/README.md b/README.md
index db3aa6a..636d48f 100644
--- a/README.md
+++ b/README.md
@@ -45,8 +45,13 @@ Continuously updating.....
 ##### 4.6 订阅图像话题
 ![在这里插入图片描述](https://img-blog.csdnimg.cn/20200426203752918.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NDQxNjky,size_16,color_FFFFFF,t_70)
 ![在这里插入图片描述](https://img-blog.csdnimg.cn/20200426203815951.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NDQxNjky,size_16,color_FFFFFF,t_70)
-##### 4.6 To be perfected....
-##### 4.6 待完善....
+##### 4.7 Quick instructions
+##### 4.7 快捷指令
+![在这里插入图片描述](https://img-blog.csdnimg.cn/20200429204153916.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NDQxNjky,size_16,color_FFFFFF,t_70)
+![在这里插入图片描述](https://img-blog.csdnimg.cn/20200429204233788.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NDQxNjky,size_16,color_FFFFFF,t_70)
+
+##### 4.8 To be perfected....
+##### 4.8 待完善....
 ### 二，安装教程
 ### 二，Installation tutorial
 #### 1，首先安装ros对qt pkg的支持
diff --git a/src/main_window.cpp b/src/main_window.cpp
index 926b850..e08e5f3 100644
--- a/src/main_window.cpp
+++ b/src/main_window.cpp
@@ -916,6 +916,8 @@ void MainWindow::on_button_connect_clicked(bool check ) {
               ui.label_robot_staue_img->setPixmap(QPixmap::fromImage(QImage("://images/online.png")));
               ui.label_statue_text->setStyleSheet("color:green;");
              ui.label_statue_text->setText("在线");
+             //初始化视频订阅的显示
+             initVideos();
 		}
     }
     //如果不使用环境变量
@@ -937,10 +939,11 @@ void MainWindow::on_button_connect_clicked(bool check ) {
             ui.label_robot_staue_img->setPixmap(QPixmap::fromImage(QImage("://images/online.png")));
             ui.label_statue_text->setStyleSheet("color:green;");
            ui.label_statue_text->setText("在线");
+           //初始化视频订阅的显示
+           initVideos();
 		}
 	}
-    //初始化视频订阅的显示
-    initVideos();
+
 }
 //当ros与master的连接断开时
 void MainWindow::slot_rosShutdown()