diff --git a/examples/user_guide/k230_simulate-EN.ipynb b/examples/user_guide/k230_simulate-EN.ipynb
index 601864dd73..309f8cd830 100644
--- a/examples/user_guide/k230_simulate-EN.ipynb
+++ b/examples/user_guide/k230_simulate-EN.ipynb
@@ -36,25 +36,36 @@
    ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "8b32a0b5-90b0-4bc7-8448-2a544b7d06e9",
+   "attachments": {},
+   "cell_type": "markdown",
+   "id": "a17fa3cf",
    "metadata": {},
-   "outputs": [],
    "source": [
-    "# ubuntu\n",
-    "%env PATH=$PATH:/usr/local/lib/python3.7/site-packages"
+    "## auto set enviroment"
    ]
   },
   {
-   "attachments": {},
-   "cell_type": "markdown",
-   "id": "960b50d1-1990-4b1c-b8be-0a9f04fb6907",
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "7cdadfc6",
    "metadata": {},
+   "outputs": [],
    "source": [
-    "* In Windows OS\n",
-    "> You need to add the path where nncase packages were installed into `PATH` environment variable.\n",
-    "After it, you need to restart your `CMD`. "
+    "import os\n",
+    "import sys\n",
+    "import subprocess\n",
+    "\n",
+    "result = subprocess.run([\"pip\", \"show\", \"nncase\"], capture_output=True)\n",
+    "\n",
+    "if sys.platform == \"win32\":\n",
+    "    location = result.stdout.decode().split(\"\\r\\n\")[7].split(\": \")[1]\n",
+    "else:\n",
+    "    location = result.stdout.decode().split(\"\\n\")[7].split(\": \")[1]\n",
+    "\n",
+    "if \"PATH\" in os.environ:\n",
+    "    os.environ[\"PATH\"] += os.pathsep + location\n",
+    "else:\n",
+    "    os.environ[\"PATH\"] = location"
    ]
   },
   {
diff --git a/examples/user_guide/k230_simulate-ZH.ipynb b/examples/user_guide/k230_simulate-ZH.ipynb
index ec378c0312..e5a9a55d86 100644
--- a/examples/user_guide/k230_simulate-ZH.ipynb
+++ b/examples/user_guide/k230_simulate-ZH.ipynb
@@ -36,24 +36,36 @@
    ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "8b32a0b5-90b0-4bc7-8448-2a544b7d06e9",
+   "attachments": {},
+   "cell_type": "markdown",
+   "id": "d8d2a6f0",
    "metadata": {},
-   "outputs": [],
    "source": [
-    "# ubuntu\n",
-    "%env PATH=$PATH:/usr/local/lib/python3.7/site-packages"
+    "## 自动设置环境变量"
    ]
   },
   {
-   "attachments": {},
-   "cell_type": "markdown",
-   "id": "960b50d1-1990-4b1c-b8be-0a9f04fb6907",
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "8b32a0b5-90b0-4bc7-8448-2a544b7d06e9",
    "metadata": {},
+   "outputs": [],
    "source": [
-    "* Windows平台\n",
-    "> 需要将nncase的安装路径加入到`PATH`环境变量中，并且重启你的`CMD`。"
+    "import os\n",
+    "import sys\n",
+    "import subprocess\n",
+    "\n",
+    "result = subprocess.run([\"pip\", \"show\", \"nncase\"], capture_output=True)\n",
+    "\n",
+    "if sys.platform == \"win32\":\n",
+    "    location = result.stdout.decode().split(\"\\r\\n\")[7].split(\": \")[1]\n",
+    "else:\n",
+    "    location = result.stdout.decode().split(\"\\n\")[7].split(\": \")[1]\n",
+    "\n",
+    "if \"PATH\" in os.environ:\n",
+    "    os.environ[\"PATH\"] += os.pathsep + location\n",
+    "else:\n",
+    "    os.environ[\"PATH\"] = location\n"
    ]
   },
   {