diff --git a/Docs/Jupyter笔记.1.2.连接数据库.ipynb b/Docs/Jupyter笔记.1.2.连接数据库.ipynb
index d2c05d9..03148bf 100644
--- a/Docs/Jupyter笔记.1.2.连接数据库.ipynb
+++ b/Docs/Jupyter笔记.1.2.连接数据库.ipynb
@@ -48,19 +48,46 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {
     "dotnet_interactive": {
      "language": "csharp"
     },
     "polyglot_notebook": {
      "kernelName": "csharp"
-    },
-    "vscode": {
-     "languageId": "polyglot-notebook"
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div><div></div><div></div><div><strong>Installed Packages</strong><ul><li><span>Microsoft.Dotnet.Interactive.SqlServer, 1.0.0-beta.23165.2</span></li></ul></div></div>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/plain": [
+       "Loading extensions from `C:\\Users\\ruyu\\.nuget\\packages\\microsoft.dotnet.interactive.sqlserver\\1.0.0-beta.23165.2\\interactive-extensions\\dotnet\\Microsoft.DotNet.Interactive.SqlServer.dll`"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/html": [
+       "<details><summary>Query Microsoft SQL Server databases.</summary>\r\n",
+       "<p>This extension adds support for connecting to Microsoft SQL Server databases using the <code>#!connect mssql</code> magic command. For more information, run a cell using the <code>#!sql</code> magic command.</p>\r\n",
+       "</details>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "#r \"nuget:Microsoft.Dotnet.Interactive.SqlServer,*-*\""
    ]
@@ -134,9 +161,6 @@
     },
     "polyglot_notebook": {
      "kernelName": "csharp"
-    },
-    "vscode": {
-     "languageId": "polyglot-notebook"
     }
    },
    "outputs": [],
@@ -192,21 +216,28 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "metadata": {
     "dotnet_interactive": {
      "language": "csharp"
     },
     "polyglot_notebook": {
      "kernelName": "csharp"
-    },
-    "vscode": {
-     "languageId": "polyglot-notebook"
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "Kernel added: #!sql-Demo"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
-    "#!connect mssql \"server=.\\SQL2008;uid=sa;pwd=gly-bicijinlian;database=Demo;Encrypt=True;TrustServerCertificate=True;\" --kernel-name Demo\n",
+    "#!connect mssql \"server=.\\SQL2008;uid=sa;pwd=gly-bicijinlian;database=Study;Encrypt=True;TrustServerCertificate=True;\" --kernel-name Demo\n",
     "//重复执行会抛出错误,目前没有找到解决方法"
    ]
   },
@@ -242,21 +273,73 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 4,
    "metadata": {
     "dotnet_interactive": {
      "language": "sql-Demo"
     },
     "polyglot_notebook": {
      "kernelName": "sql-Demo"
-    },
-    "vscode": {
-     "languageId": "polyglot-notebook"
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "(2 行受到影响)"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/csv": [
+       "Id,Name,Age,Address,School,Grade,Room\r\n",
+       "1,王明明,5,五星小区21号301,太康一高,一年级,\r\n",
+       "2,张三丰,9,,太康一高,一年级,\r\n"
+      ],
+      "text/html": [
+       "<table><thead><tr><td><span>Id</span></td><td><span>Name</span></td><td><span>Age</span></td><td><span>Address</span></td><td><span>School</span></td><td><span>Grade</span></td><td><span>Room</span></td></tr></thead><tbody><tr><td><div class=\"dni-plaintext\"><pre>1</pre></div></td><td>王明明</td><td><div class=\"dni-plaintext\"><pre>5</pre></div></td><td>五星小区21号301</td><td>太康一高</td><td>一年级</td><td></td></tr><tr><td><div class=\"dni-plaintext\"><pre>2</pre></div></td><td>张三丰</td><td><div class=\"dni-plaintext\"><pre>9</pre></div></td><td></td><td>太康一高</td><td>一年级</td><td></td></tr></tbody></table><style>\r\n",
+       ".dni-code-hint {\r\n",
+       "    font-style: italic;\r\n",
+       "    overflow: hidden;\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview {\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview td {\r\n",
+       "    vertical-align: top;\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "details.dni-treeview {\r\n",
+       "    padding-left: 1em;\r\n",
+       "}\r\n",
+       "table td {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "table tr { \r\n",
+       "    vertical-align: top; \r\n",
+       "    margin: 0em 0px;\r\n",
+       "}\r\n",
+       "table tr td pre \r\n",
+       "{ \r\n",
+       "    vertical-align: top !important; \r\n",
+       "    margin: 0em 0px !important;\r\n",
+       "} \r\n",
+       "table th {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "</style>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
-    "SELECT * from Test"
+    "SELECT * from Student"
    ]
   },
   {
@@ -291,22 +374,74 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "metadata": {
     "dotnet_interactive": {
      "language": "csharp"
     },
     "polyglot_notebook": {
      "kernelName": "csharp"
-    },
-    "vscode": {
-     "languageId": "polyglot-notebook"
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "(2 行受到影响)"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/csv": [
+       "Id,Name,Age,Address,School,Grade,Room\r\n",
+       "1,王明明,5,五星小区21号301,太康一高,一年级,\r\n",
+       "2,张三丰,9,,太康一高,一年级,\r\n"
+      ],
+      "text/html": [
+       "<table><thead><tr><td><span>Id</span></td><td><span>Name</span></td><td><span>Age</span></td><td><span>Address</span></td><td><span>School</span></td><td><span>Grade</span></td><td><span>Room</span></td></tr></thead><tbody><tr><td><div class=\"dni-plaintext\"><pre>1</pre></div></td><td>王明明</td><td><div class=\"dni-plaintext\"><pre>5</pre></div></td><td>五星小区21号301</td><td>太康一高</td><td>一年级</td><td></td></tr><tr><td><div class=\"dni-plaintext\"><pre>2</pre></div></td><td>张三丰</td><td><div class=\"dni-plaintext\"><pre>9</pre></div></td><td></td><td>太康一高</td><td>一年级</td><td></td></tr></tbody></table><style>\r\n",
+       ".dni-code-hint {\r\n",
+       "    font-style: italic;\r\n",
+       "    overflow: hidden;\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview {\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview td {\r\n",
+       "    vertical-align: top;\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "details.dni-treeview {\r\n",
+       "    padding-left: 1em;\r\n",
+       "}\r\n",
+       "table td {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "table tr { \r\n",
+       "    vertical-align: top; \r\n",
+       "    margin: 0em 0px;\r\n",
+       "}\r\n",
+       "table tr td pre \r\n",
+       "{ \r\n",
+       "    vertical-align: top !important; \r\n",
+       "    margin: 0em 0px !important;\r\n",
+       "} \r\n",
+       "table th {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "</style>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "#!sql-Demo\n",
-    "SELECT * from Test"
+    "SELECT * from Student"
    ]
   },
   {
@@ -341,21 +476,53 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "metadata": {
     "dotnet_interactive": {
      "language": "csharp"
     },
     "polyglot_notebook": {
      "kernelName": "csharp"
-    },
-    "vscode": {
-     "languageId": "polyglot-notebook"
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "Scaffolding a `DbContext` and initializing an instance of it called `DemoEF` in the C# kernel."
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/html": [
+       "<div><div></div><div></div><div><strong>Installed Packages</strong><ul><li><span>Humanizer, 2.14.1</span></li><li><span>humanizer.core, 2.14.1</span></li><li><span>Microsoft.EntityFrameworkCore.Design, 7.0.0</span></li><li><span>microsoft.entityframeworkcore.sqlserver, 7.0.0</span></li><li><span>microsoft.identity.client, 4.48.1</span></li></ul></div></div>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Security Warning: The negotiated TLS 1.0 is an insecure protocol and is supported for backward compatibility only. The recommended protocol version is TLS 1.2 and later.\r\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "Kernel added: #!sql-DemoEF"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
-    "#!connect mssql \"server=.\\SQL2008;uid=sa;pwd=gly-bicijinlian;database=Demo;Encrypt=True;TrustServerCertificate=True;\" --create-dbcontext --kernel-name DemoEF "
+    "#!connect mssql \"server=.\\SQL2008;uid=sa;pwd=gly-bicijinlian;database=Study;Encrypt=True;TrustServerCertificate=True;\" --create-dbcontext --kernel-name DemoEF "
    ]
   },
   {
@@ -408,22 +575,74 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 7,
    "metadata": {
     "dotnet_interactive": {
      "language": "csharp"
     },
     "polyglot_notebook": {
      "kernelName": "csharp"
-    },
-    "vscode": {
-     "languageId": "polyglot-notebook"
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "(2 行受到影响)"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/csv": [
+       "Id,Name,Age,Address,School,Grade,Room\r\n",
+       "1,王明明,5,五星小区21号301,太康一高,一年级,\r\n",
+       "2,张三丰,9,,太康一高,一年级,\r\n"
+      ],
+      "text/html": [
+       "<table><thead><tr><td><span>Id</span></td><td><span>Name</span></td><td><span>Age</span></td><td><span>Address</span></td><td><span>School</span></td><td><span>Grade</span></td><td><span>Room</span></td></tr></thead><tbody><tr><td><div class=\"dni-plaintext\"><pre>1</pre></div></td><td>王明明</td><td><div class=\"dni-plaintext\"><pre>5</pre></div></td><td>五星小区21号301</td><td>太康一高</td><td>一年级</td><td></td></tr><tr><td><div class=\"dni-plaintext\"><pre>2</pre></div></td><td>张三丰</td><td><div class=\"dni-plaintext\"><pre>9</pre></div></td><td></td><td>太康一高</td><td>一年级</td><td></td></tr></tbody></table><style>\r\n",
+       ".dni-code-hint {\r\n",
+       "    font-style: italic;\r\n",
+       "    overflow: hidden;\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview {\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview td {\r\n",
+       "    vertical-align: top;\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "details.dni-treeview {\r\n",
+       "    padding-left: 1em;\r\n",
+       "}\r\n",
+       "table td {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "table tr { \r\n",
+       "    vertical-align: top; \r\n",
+       "    margin: 0em 0px;\r\n",
+       "}\r\n",
+       "table tr td pre \r\n",
+       "{ \r\n",
+       "    vertical-align: top !important; \r\n",
+       "    margin: 0em 0px !important;\r\n",
+       "} \r\n",
+       "table th {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "</style>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "#!sql-DemoEF\n",
-    "SELECT * from Test"
+    "SELECT * from Student"
    ]
   },
   {
@@ -443,26 +662,104 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 9,
    "metadata": {
     "dotnet_interactive": {
      "language": "csharp"
     },
     "polyglot_notebook": {
      "kernelName": "csharp"
-    },
-    "vscode": {
-     "languageId": "polyglot-notebook"
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<table><thead><tr><th><i>index</i></th><th>value</th></tr></thead><tbody><tr><td>0</td><td><details class=\"dni-treeview\"><summary><span class=\"dni-code-hint\"><code>Submission#4+Student</code></span></summary><div><table><thead><tr></tr></thead><tbody><tr><td>Id</td><td><div class=\"dni-plaintext\"><pre>1</pre></div></td></tr><tr><td>Name</td><td>王明明</td></tr><tr><td>Age</td><td><div class=\"dni-plaintext\"><pre>5</pre></div></td></tr><tr><td>Address</td><td>五星小区21号301</td></tr><tr><td>School</td><td>太康一高</td></tr><tr><td>Grade</td><td>一年级</td></tr><tr><td>Room</td><td></td></tr></tbody></table></div></details></td></tr><tr><td>1</td><td><details class=\"dni-treeview\"><summary><span class=\"dni-code-hint\"><code>Submission#4+Student</code></span></summary><div><table><thead><tr></tr></thead><tbody><tr><td>Id</td><td><div class=\"dni-plaintext\"><pre>2</pre></div></td></tr><tr><td>Name</td><td>张三丰</td></tr><tr><td>Age</td><td><div class=\"dni-plaintext\"><pre>9</pre></div></td></tr><tr><td>Address</td><td></td></tr><tr><td>School</td><td>太康一高</td></tr><tr><td>Grade</td><td>一年级</td></tr><tr><td>Room</td><td></td></tr></tbody></table></div></details></td></tr></tbody></table><style>\r\n",
+       ".dni-code-hint {\r\n",
+       "    font-style: italic;\r\n",
+       "    overflow: hidden;\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview {\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview td {\r\n",
+       "    vertical-align: top;\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "details.dni-treeview {\r\n",
+       "    padding-left: 1em;\r\n",
+       "}\r\n",
+       "table td {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "table tr { \r\n",
+       "    vertical-align: top; \r\n",
+       "    margin: 0em 0px;\r\n",
+       "}\r\n",
+       "table tr td pre \r\n",
+       "{ \r\n",
+       "    vertical-align: top !important; \r\n",
+       "    margin: 0em 0px !important;\r\n",
+       "} \r\n",
+       "table th {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "</style>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/html": [
+       "<div class=\"dni-plaintext\"><pre>-1</pre></div><style>\r\n",
+       ".dni-code-hint {\r\n",
+       "    font-style: italic;\r\n",
+       "    overflow: hidden;\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview {\r\n",
+       "    white-space: nowrap;\r\n",
+       "}\r\n",
+       ".dni-treeview td {\r\n",
+       "    vertical-align: top;\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "details.dni-treeview {\r\n",
+       "    padding-left: 1em;\r\n",
+       "}\r\n",
+       "table td {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "table tr { \r\n",
+       "    vertical-align: top; \r\n",
+       "    margin: 0em 0px;\r\n",
+       "}\r\n",
+       "table tr td pre \r\n",
+       "{ \r\n",
+       "    vertical-align: top !important; \r\n",
+       "    margin: 0em 0px !important;\r\n",
+       "} \r\n",
+       "table th {\r\n",
+       "    text-align: start;\r\n",
+       "}\r\n",
+       "</style>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "//连接建立后,执行环境中就有了相关的类:DBContext等\n",
     "DemoEFContext context = new DemoEFContext();\n",
-    "var t = context.Tests.ToList<Test>();\n",
+    "var t = context.Students.ToList<Student>();\n",
     "display(t);\n",
     "\n",
-    "FormattableString fs = $\"select * from Test;\";\n",
+    "FormattableString fs = $\"select * from Student;\";\n",
     "var c = context.Database.ExecuteSql(fs);\n",
     "display(c);"
    ]
@@ -474,39 +771,29 @@
    "language": "C#",
    "name": ".net-csharp"
   },
+  "language_info": {
+   "name": "polyglot-notebook"
+  },
   "polyglot_notebook": {
    "kernelInfo": {
     "defaultKernelName": "csharp",
     "items": [
-     {
-      "aliases": [
-       "c#",
-       "C#"
-      ],
-      "languageName": "C#",
-      "name": "csharp"
-     },
      {
       "aliases": [],
-      "languageName": "SQL",
-      "name": "sql"
+      "name": ".NET"
      },
      {
       "aliases": [
-       "frontend"
+       "C#",
+       "c#"
       ],
-      "languageName": null,
-      "name": "vscode"
-     },
-     {
-      "aliases": [],
-      "languageName": null,
-      "name": ".NET"
+      "languageName": "C#",
+      "name": "csharp"
      },
      {
       "aliases": [
-       "f#",
-       "F#"
+       "F#",
+       "f#"
       ],
       "languageName": "F#",
       "name": "fsharp"
@@ -533,9 +820,30 @@
       "languageName": "PowerShell",
       "name": "pwsh"
      },
+     {
+      "aliases": [],
+      "languageName": "SQL",
+      "name": "sql"
+     },
+     {
+      "aliases": [],
+      "languageName": "T-SQL",
+      "name": "sql-Demo"
+     },
+     {
+      "aliases": [],
+      "languageName": "T-SQL",
+      "name": "sql-DemoEF"
+     },
      {
       "aliases": [],
       "name": "value"
+     },
+     {
+      "aliases": [
+       "frontend"
+      ],
+      "name": "vscode"
      }
     ]
    }
diff --git a/MultiThreadingStudy.ConsoleApp/Program.cs b/MultiThreadingStudy.ConsoleApp/Program.cs
index 20aa618..63b6bc2 100644
--- a/MultiThreadingStudy.ConsoleApp/Program.cs
+++ b/MultiThreadingStudy.ConsoleApp/Program.cs
@@ -2,7 +2,7 @@ namespace MultiThreadingStudy.ConsoleApp
 {
     internal class Program
     {
-        static async Task Main(string[] args)
+        static void Main(string[] args)
         {
             Console.WriteLine("多线程学习");
         }