diff --git a/Docs/1.3.4.基础使用.处理错误.ipynb b/Docs/1.3.4.基础使用.处理错误.ipynb
index 7656438..e77ccbe 100644
--- a/Docs/1.3.4.基础使用.处理错误.ipynb
+++ b/Docs/1.3.4.基础使用.处理错误.ipynb
@@ -11,7 +11,14 @@
     }
    },
    "source": [
-    "# HttpClient 使用原则"
+    "# HttpClient 处理错误与异常"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "根据客户端的创建方法不周，有不同的错误与异常处理方式。推荐类型化客户端、工厂和Polly库中统一处理！"
    ]
   },
   {
@@ -28,7 +35,147 @@
     }
    },
    "source": [
-    "## 1、复用"
+    "## 初始化"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "polyglot_notebook": {
+     "kernelName": "csharp"
+    },
+    "vscode": {
+     "languageId": "polyglot-notebook"
+    }
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "## 初始化\n",
+       "这是全局共用文件，包括Nuget包引用、全局类库引用、全局文件引用、全局命名空间引用、全局变量、全局方法、全局类定义等功能。\n",
+       "\n",
+       "在业务笔记中引用，执行其它单元格之前先执行一次。"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/html": [
+       "<div><div></div><div></div><div><strong>Installed Packages</strong><ul><li><span>Microsoft.Extensions.DependencyInjection, 9.0.4</span></li><li><span>Microsoft.Extensions.Http, 9.0.4</span></li><li><span>Microsoft.Extensions.Http.Polly, 9.0.4</span></li><li><span>Microsoft.Extensions.Logging, 9.0.4</span></li><li><span>Microsoft.Extensions.Logging.Console, 9.0.4</span></li><li><span>Microsoft.Net.Http.Headers, 9.0.4</span></li><li><span>Polly, 8.5.2</span></li><li><span>Refit, 8.0.0</span></li><li><span>Refit.HttpClientFactory, 8.0.0</span></li><li><span>System.Net.Http.Json, 9.0.4</span></li></ul></div></div>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "配置文件根目录：c:\\Users\\ruyu\\Desktop\\HttpClientStudy\\Docs\\Publish\\HttpClientStudy.Core\n",
+      "配置文件根目录：c:\\Users\\ruyu\\Desktop\\HttpClientStudy\\Docs\\Publish\\HttpClientStudy.Core\n",
+      "启动WebApi项目...\n",
+      "程序[c:\\Users\\ruyu\\Desktop\\HttpClientStudy\\Docs\\Publish\\HttpClientStudy.WebApp\\HttpClientStudy.WebApp.exe]已在新的命令行窗口执行。如果未出现新命令行窗口，可能是程序错误造成窗口闪现！\n",
+      "已启动WebApi项目,保持窗口打开状态！\n",
+      "初始化完成！\n"
+     ]
+    }
+   ],
+   "source": [
+    "#!import ./Ini.ipynb"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## 常规方法 try catch"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "直接实例化客户端时，可以用`Try Catch`简单处理,这种是最不推荐的方式！"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "polyglot_notebook": {
+     "kernelName": "csharp"
+    },
+    "vscode": {
+     "languageId": "polyglot-notebook"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "/*\n",
+    "    每次请求都实例化：并发量大、请求频繁进会耗尽套接字端口\n",
+    "*/\n",
+    "{ \n",
+    "    var baseUrl = WebApiConfigManager.GetWebApiConfig().BaseUrl;\n",
+    "\n",
+    "    using(var client = new HttpClient())\n",
+    "    {\n",
+    "        //发送请求\n",
+    "        var response = await client.GetAsync(baseUrl);\n",
+    "        response.EnsureSuccessStatusCode();\n",
+    "    }\n",
+    "\n",
+    "    //显示句柄\n",
+    "    var displayValue = display($\"第 0 次请求，成功！\");\n",
+    "\n",
+    "    for(int i=0;i<10;i++)\n",
+    "    {\n",
+    "        using(var client = new HttpClient())\n",
+    "        {\n",
+    "            var response = await client.GetAsync(baseUrl);\n",
+    "            response.EnsureSuccessStatusCode();\n",
+    "            displayValue.Update($\"第 {i+1} 次/ 共 10 次请求，成功！\");\n",
+    "        }\n",
+    "    }\n",
+    "}"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## 静态或工具类中处理"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## 类型化客户端中处理"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## 在管道中，添加异常中间件"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## 工厂模式中统一处理"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Polly库处理"
    ]
   }
  ],