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   "source": [
    "在 Ployglog Notebook 中, 使用Python语言内核\n",
    "=========================================\n",
    "使用多语言笔记，直接支持 Python语言\n",
    "优势：在一个笔记文档中，可以同时混合多种语言：Python、C#、F#、PowerShell、JS、SQL、HTML等"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 方式一：导入Python语言内核\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "这种导入方式，使用简单；但只能执行一次，多次执行会报错"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [],
   "source": [
    "//命名空间\n",
    "using Microsoft.DotNet.Interactive;\n",
    "using Microsoft.DotNet.Interactive.Commands;\n",
    "\n",
    "//引入Python内核\n",
    "#!connect jupyter --kernel-name pythonkernel --kernel-spec python3"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 方式二:导入Python语言内核\n",
    "这种导入方式，是方式一的优化、变型版，原理一样；但可多次执行，不报错"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [],
   "source": [
    "using Microsoft.DotNet.Interactive;\n",
    "using Microsoft.DotNet.Interactive.Commands;\n",
    "\n",
    "//引入Python内核：使用C# 执行引入语句\n",
    "if(Kernel.Root.FindKernelByName(\"pythonkernel\") == null)\n",
    "{\n",
    "    //Console.WriteLine(\"正在导入Python内核....\");\n",
    "    var importPythonkernel = \"#!connect jupyter --kernel-name pythonkernel --kernel-spec python3\";\n",
    "    await Kernel.Root.SendAsync(new SubmitCode( importPythonkernel,  \"csharp\"));\n",
    "    //Console.WriteLine(\"Python内核导入完成\");\n",
    "}\n",
    "else \n",
    "{\n",
    "    //Console.WriteLine(\"Python内核已经导入\");\n",
    "}"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 使用Python语言内核\n",
    "#!pythonkernel 命令，切换到Python语言内核"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [],
   "source": [
    "#!pythonkernel\n",
    "\n",
    "# 必须先执行导入Python内核语句\n",
    "\n",
    "print(\"你好，我是 Ployglot Notebooks 使用 Python语言内核，打印的内容！\")"
   ]
  }
 ],
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   "display_name": ".NET (C#)",
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