diff --git a/02_Python环境配置.ipynb b/02_Python环境配置.ipynb
index 828ca59..7da4566 100644
--- a/02_Python环境配置.ipynb
+++ b/02_Python环境配置.ipynb
@@ -170,6 +170,24 @@
     "\n",
     "```powershell\n",
     "pip install jupyter ipykernel -i https://pypi.tuna.tsinghua.edu.cn/simple\n",
+    "```\n",
+    "\n",
+    "在Docker中安装\n",
+    "\n",
+    "```bash\n",
+    "cd /opt\n",
+    "mkdir jupyter\n",
+    "cd jupyter\n",
+    "docker run -p 8888:8888 \\\n",
+    "    -v \"$PWD\":/home/jovyan/work \\\n",
+    "    --name my-jupyter \\\n",
+    "    jupyter/scipy-notebook:latest\n",
+    "```\n",
+    "\n",
+    "在Docker中为jupyter安装汉化包\n",
+    "\n",
+    "```bash\n",
+    "docker exec -it my-jupyter pip install jupyterlab-language-pack-zh-CN -i https://pypi.tuna.tsinghua.edu.cn/simple\n",
     "```"
    ]
   },
diff --git a/04_LangChain概述.ipynb b/04_LangChain概述.ipynb
index bcc29d4..4497a55 100644
--- a/04_LangChain概述.ipynb
+++ b/04_LangChain概述.ipynb
@@ -133,7 +133,9 @@
    "source": [
     "from langchain_openai import ChatOpenAI\n",
     "from langchain_core.prompts import ChatPromptTemplate\n",
-    "import os\n",
+    "from dotenv import load_dotenv\n",
+    "\n",
+    "_=load_dotenv()\n",
     "\n",
     "# 1. 创建模型（自动读取环境变量 OPENAI_BASE_URL 和 OPENAI_API_KEY）\n",
     "llm = ChatOpenAI(\n",