diff --git a/.gitignore b/.gitignore
index 0563bd454b15ee1430a21b7d21792bbef05af74c..9f2b88096f8c4a2468045d00a7f1b8a5a317886c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ install.py
 java/*
 java/
 *.ipyhistory
+jupyter-c-kernel
diff --git "a/008-\345\244\232\345\206\205\346\240\270.ipynb" "b/008-\345\244\232\345\206\205\346\240\270.ipynb"
index 9be90123e74f5df761d34c417de967b17804a364..4ed132ac8f1950f731056ea3e44eac44f65a540a 100644
--- "a/008-\345\244\232\345\206\205\346\240\270.ipynb"
+++ "b/008-\345\244\232\345\206\205\346\240\270.ipynb"
@@ -3,7 +3,9 @@
   {
    "cell_type": "markdown",
    "id": "bf3f1c1b-0829-4d30-9540-4c49b1358e63",
-   "metadata": {},
+   "metadata": {
+    "tags": []
+   },
    "source": [
     "## jupyter 多内核使用\n",
     "\n",
@@ -55,25 +57,75 @@
     "\n",
     "最后通过 `jupyter kernelspec list` 来查看是否添加上 Java 的 kernel\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "4559659a-5dba-4e90-a727-1757a1ed819e",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "// 这里放一段 Java 的测试代码，可以选择 Java 内核来运行测试一下\n",
+    "System.out.println(\"Hello World!\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "77a5b645-8378-41d5-94dc-d389e6dc1920",
+   "metadata": {},
+   "source": [
+    "## C Kernel\n",
+    "\n",
+    "GitHub: <https://github.com/brendan-rius/jupyter-c-kernel>\n",
+    "\n",
+    "1. Clone Repo\n",
+    "2. Install setup.py\n",
+    "3. Install Jupyter_c_kernel\n",
+    "\n",
+    "\n",
+    "```bash\n",
+    "# Step 1\n",
+    "git clone https://github.com/brendan-rius/jupyter-c-kernel && cd jupyter-c-kernel\n",
+    "\n",
+    "# Step 2\n",
+    "## setup.py 的使用命令查看  python3 setup.py --help\n",
+    "python3 setup.py install\n",
+    "\n",
+    "# Step 3\n",
+    "cd jupyter_c_kernel\n",
+    "python3 install_c_kernel\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "727ec622-2a51-4129-86bb-f487edb45b0a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#include <stdio.h>      // 执行 printf() 函数需要该库\n",
+    "int main()\n",
+    "{\n",
+    "    printf(\"Hello World!\");  //显示引号中的内容\n",
+    "    return 0;\n",
+    "}"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
-   "language": "python",
-   "name": "python3"
+   "display_name": "Java",
+   "language": "java",
+   "name": "java"
   },
   "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.9.1"
+   "codemirror_mode": "java",
+   "file_extension": ".jshell",
+   "mimetype": "text/x-java-source",
+   "name": "Java",
+   "pygments_lexer": "java",
+   "version": "16.0.1+9-24"
   }
  },
  "nbformat": 4,