diff --git a/Img/docImg/chmd.png b/Img/docImg/chmd.png
index 1429b03d32974aedecaf61625268b6d71258627c..17879bf11d59217b7e742ba669cd9bb50d21c2f2 100644
Binary files a/Img/docImg/chmd.png and b/Img/docImg/chmd.png differ
diff --git a/README.md b/README.md
index 3ec376d2da0865592baccbd23c4034b9a4ab000d..3dbeea96d65d5bf66ea7d8d68d3c822d828bf664 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 <div align="center">
    <img alt="SmartSQL" src="https://gitee.com/izhaofu/SmartSQL/raw/master/Img/icon.png">
-	<h2 align="center" style="color:#4da7fd"><b>SmartSQL</b></h2>
+	<a href="#"><h1 align="center" style="color:#4da7fd"><b>SmartSQL</b></h1></a>
 </div>
 <div align="center">
 <h5 align="center">⚡一款方便、快捷的数据库文档查询、生成工具</h3>
diff --git a/SmartSQL/SmartSQL/App.xaml.cs b/SmartSQL/SmartSQL/App.xaml.cs
index 4b44aec8d4f6d2e445994fa8699087f8e997fc1e..0690f05df1fa198b666d5185c3a9e8b6cf7b4f3b 100644
--- a/SmartSQL/SmartSQL/App.xaml.cs
+++ b/SmartSQL/SmartSQL/App.xaml.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
@@ -37,38 +37,40 @@ namespace SmartSQL
             try
             {
                 e.Handled = true; //把 Handled 属性设为true，表示此异常已处理，程序可以继续运行，不会强制退出
-                Growl.WarningGlobal("UI线程异常:" + e.Exception);
+                                  //Growl.WarningGlobal("UI线程异常:" + e.Exception);
+                Growl.WarningGlobal("程序异常，请稍后再试");
             }
             catch (Exception)
             {
                 //此时程序出现严重异常，将强制结束退出
-                Growl.WarningGlobal("UI线程发生致命错误");
+                Growl.WarningGlobal("程序异常，请稍后再试");
             }
         }
 
         void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
         {
-            StringBuilder sbEx = new StringBuilder();
-            if (e.IsTerminating)
-            {
-                sbEx.Append("非UI线程发生致命错误：");
-            }
-            sbEx.Append("非UI线程异常：");
-            if (e.ExceptionObject is Exception)
-            {
-                sbEx.Append(((Exception)e.ExceptionObject).Message);
-            }
-            else
-            {
-                sbEx.Append(e.ExceptionObject);
-            }
-            Growl.WarningGlobal(sbEx.ToString());
+            //StringBuilder sbEx = new StringBuilder();
+            //if (e.IsTerminating)
+            //{
+            //    sbEx.Append("非UI线程发生致命错误：");
+            //}
+            //sbEx.Append("非UI线程异常：");
+            //if (e.ExceptionObject is Exception)
+            //{
+            //    sbEx.Append(((Exception)e.ExceptionObject).Message);
+            //}
+            //else
+            //{
+            //    sbEx.Append(e.ExceptionObject);
+            //}
+            Growl.WarningGlobal("程序异常，请稍后再试");
         }
 
         void TaskScheduler_UnobservedTaskException(object sender, UnobservedTaskExceptionEventArgs e)
         {
             //task线程内未处理捕获
-            Growl.WarningGlobal("Task线程异常：" + e.Exception.Message);
+            //Growl.WarningGlobal("Task线程异常：" + e.Exception.Message);
+            Growl.WarningGlobal("程序异常，请稍后再试");
             e.SetObserved();//设置该异常已察觉（这样处理后就不会引起程序崩溃）
         }
     }
diff --git a/SmartSQL/SmartSQL/MainWindow.xaml.cs b/SmartSQL/SmartSQL/MainWindow.xaml.cs
index 591fc3287c0fb1b9a0f4fede0a8e05cf1676afc5..45f9f29c85a3dc4d770e3b1f04c73b4d43750faa 100644
--- a/SmartSQL/SmartSQL/MainWindow.xaml.cs
+++ b/SmartSQL/SmartSQL/MainWindow.xaml.cs
@@ -286,10 +286,24 @@ namespace SmartSQL
                                   }).ToList();
                 }
                 #endregion
-
-                var dbInstance = ExporterFactory.CreateInstance(selectConnection.DbType, selectConnection.SelectedDbConnectString(selectDataBase));
-                var model = dbInstance.Init();
-                dataSource = model;
+                var model = new Model();
+                try
+                {
+                    var dbInstance = ExporterFactory.CreateInstance(selectConnection.DbType, selectConnection.SelectedDbConnectString(selectDataBase));
+                    model = dbInstance.Init();
+                    dataSource = model;
+                }
+                catch (Exception ex)
+                {
+                    Dispatcher.BeginInvoke(new Action(() =>
+                    {
+                        Growl.Warning(new GrowlInfo
+                        {
+                            Message = $"连接失败 {selectConnection.ConnectName}，原因：" + ex.Message, ShowDateTime = false,
+                            Type = InfoType.Error
+                        });
+                    }));
+                }
                 var textColor = "#333444";
                 #region 数据表
                 foreach (var table in model.Tables)