{
 "cells": [
  {
   "attachments": {},
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "在笔记中共享数据(变量)\n",
    "===================="
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "使用 .NET 交互式内核，可以在单个笔记本中以多种语言编写代码。为了利用每种语言的不同优势，您会发现在它们之间共享数据很有用。即一种语言的变量，可以在其它语言中使用。\n",
    "默认情况下，.NET Interactive 支持多种不同的语言，其中大多数语言都允许使用magic 命令`#!set` 和 `#!shared` 进行共享。"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 变量共享的语言支持情况"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "| 语言          | 变量共享   |\n",
    "| ----          | ----      |\n",
    "| C#            |  支持     |\n",
    "| F#            |  支持     |\n",
    "| PowerShell    |  支持     |\n",
    "| JavaScript    |  支持     |\n",
    "| SQL           |  支持     |\n",
    "| KQL           |  支持     |\n",
    "| Python        |  支持     |\n",
    "| R             |  支持     |\n",
    "| HTML          | 不支持    |\n",
    "| Mermaid       | 不支持    |"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 同种内核 默认共享数据"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "同种内核的不同单元格之间，无需任何操作，变量默认共享，后续单元格直接使用前面已执行单元格的数据。"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "+ JS 各单元格共享示例:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "javascript"
    }
   },
   "outputs": [],
   "source": [
    "//声明变量\n",
    "JsShared = \"jsShared\";"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "javascript"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "jsShared"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "//直接使用上面单元格变量\n",
    "console.log(JsShared);"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "source": [
    "+ C# 各单元格共享示例:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [],
   "source": [
    "//声明变量\n",
    "string CsharpShared = \"CsharpShared\";"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "CsharpShared\r\n"
     ]
    }
   ],
   "source": [
    "//直接使用\n",
    "Console.WriteLine(CsharpShared);"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 使用 `#!set` 和 `#!shared` 魔法命令共享数据"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "> `#!shared` 魔法命令从 .NET Interactive 的早期就已经存在，而 `#!set` 是较新的命令，它提供了` #!share` 功能的超集。由于 `#!set` 具有更丰富的功能并且更具可读性，因此就优先使用`#!set`。\n",
    "> 把 `#!share` 命令重写为 `#!set` 命令很容易"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "`#!share` 用法的示例："
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "javascript"
    }
   },
   "outputs": [],
   "source": [
    "//声明一个要被共享的js变量\n",
    "\n",
    "//共享的变量声明不要加var、let、const关键字,加了变局部变量\n",
    "jsVar = \"js变量值\";\n",
    "\n",
    "\n",
    "#!share --from javascript jsVar --as csVarFromJs22222\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "js变量值\r\n"
     ]
    }
   ],
   "source": [
    "//共享变量\n",
    "\n",
    "#!share --from javascript jsVar --as csVarFromJs\n",
    "Console.WriteLine(csVarFromJs);"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "改写为 等价的 `#!set` 命令："
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "js变量值\r\n"
     ]
    }
   ],
   "source": [
    "#!set --name csVarFromJs --value @javascript:jsVar\n",
    "Console.WriteLine(csVarFromJs);"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "`#!share`命令通过 --from 选项，声明了共享数据来源，通过 --as 选项 声明共享变量的新名称，方便后续使用；\n",
    "`#!set`命令通过更加明确的选项 `--name` 和 `--value` 选项, 指明了共享数据的值(形如：@来源:值形)和新名称;"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 变量视图：管理变量"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "![变量共享](./assets/images/shared.001.jpg)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 内核之间共享数据"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "示例：C# 运行中的变量，被其它语言共享。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [],
   "source": [
    "//定义变量：存储网关\n",
    "string getway = \"192.168.1.1\";"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "+ PowerShell 中使用"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {
    "dotnet_interactive": {
     "language": "pwsh"
    },
    "polyglot_notebook": {
     "kernelName": "pwsh"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "192.168.1.1\r\n"
     ]
    }
   ],
   "source": [
    "# Poweshell中使用 前面C#单元中定义的变量\n",
    "# 特别注意：因为PS中变量名必须以$开头，所以在命令中 name 参数名，在PS中使用时必须加$前辍\n",
    "\n",
    "#!set --value @csharp:getway --name gw\n",
    "\n",
    "Write-Host $gw"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "+ F# 中使用"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {
    "dotnet_interactive": {
     "language": "fsharp"
    },
    "polyglot_notebook": {
     "kernelName": "fsharp"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "192.168.1.1\r\n"
     ]
    }
   ],
   "source": [
    "#!set --value @csharp:getway --name getway\n",
    "\n",
    "Console.WriteLine(getway)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "+ 在javascrip中使用"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {
    "dotnet_interactive": {
     "language": "javascript"
    },
    "polyglot_notebook": {
     "kernelName": "javascript"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "192.168.1.1"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "#!set --value @csharp:getway --name getway\n",
    "console.log(getway);"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 从用户输入中设置变量"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "共享数据变量的值，不但能直接设置、来自其它变量，还可以是由用户输入的。这在需要用户交互时，非常有用，比如：需要用户输入密码、流程控制由用户选择等。\n",
    "\n",
    "注意：执行后，会在VS Code顶部，弹出一个小的用户输入窗口，用户输入内容并且确认后，用户的输入内容会被存储为变量的值."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "可以在魔法命令中使用一个@input前缀，直接从用户输入中设置一个值。比如："
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "输入的姓名是：小明\r\n"
     ]
    }
   ],
   "source": [
    "#!set --name userName --value @input(\"请输入姓名\");\n",
    "Console.WriteLine($\"输入的姓名是：{userName}\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "如果希望用户输入在UI中被遮盖(比如不希望在屏幕上显示的秘密)，可以使用@password前缀来代替@input"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "输入的密码是：************\r\n"
     ]
    }
   ],
   "source": [
    "#!set --name userPassword --value @password(\"请输入密码\");\n",
    "Console.WriteLine($\"输入的密码是：{userPassword}\");"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "通过和前缀请求用户输入的能力不仅仅局限于共享数据的魔法命令，还可以在程序中使用。比如："
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "输入为：小小\r\n"
     ]
    }
   ],
   "source": [
    "using Microsoft.DotNet.Interactive;\n",
    "\n",
    "var input = await Kernel.GetInputAsync(\"Pick a number.\");\n",
    "Console.WriteLine($\"输入为：{input}\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## MIME 类型"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "在.NET Interactive中，当变量在子内核之间共享时，通常需要将其转换为某种字符串表示形式。这是因为.NET Interactive中的许多子内核运行在不同的进程中。例如，核心内核在其自己的.NET进程中运行，而多语言笔记本扩展在VS Code进程中运行。你还可以在远程机器上运行子内核。子内核也可以在不同的平台上实现，例如.NET和JavaScript。\n",
    "\n",
    "因此，虽然在共享进程时，.NET语言之间可以通过引用共享变量，但共享的主要用例涉及某种形式的序列化。序列化格式由MIME类型指定，用户可以通过可选的选项来指定。如果不指定选项，则默认使用text/plain MIME类型用于变量共享。\n",
    "\n",
    "这意味着请求的变量将由源内核序列化为JSON，然后可选地由目标内核进行反序列化。对于基于.NET的内核，序列化使用特定的方法进行。在基于.NET的目标内核中使用的反序列化策略如下：\n",
    "\n",
    "| 源json类型    | 目标.NET类型                       |\n",
    "| ----          | ----                              |\n",
    "| boolean       |  System.Boolean                   |\n",
    "| number        |  System.Double                    |\n",
    "| string        |  System.String                    |\n",
    "| other         |  System.Text.Json.JsonDocument    |\n",
    "\n",
    "将变量转换为指定的MIME类型是通过使用.NET Interactive格式化API完成的，这些API可以定制。"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 引用共享"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "默认情况下的共享是值共享(即副本共享)，在特定情况下，引用类型变量可以通过引用进行共享。但要注意：\n",
    "+ 源和目标内核必须在同一进程中运行。\n",
    "+ 源和目标内核必须基于公共语言运行时（如C#、F#、PowerShell）。\n",
    "+ 如果使用的是#!set--byref，引用共享仅在使用该选项时启用。\n",
    "+ 如果使用的是#!share--mime-type，引用共享是默认行为，但在使用该选项时会禁用。\n",
    "\n",
    "因此，如果共享一个可变对象，其状态的更改将在子内核间立即可见，这与默认的基于序列化的共享不同。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "fsharp"
    }
   },
   "outputs": [],
   "source": [
    "//F# 声明数组\n",
    "open System.Collections.Generic;\n",
    "let messages = List<string>()\n",
    "messages.Add \"由F#添加\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div class=\"dni-plaintext\"><pre>[ 由F#添加, 由C#添加 ]</pre></div><style>\r\n",
       ".dni-code-hint {\r\n",
       "    font-style: italic;\r\n",
       "    overflow: hidden;\r\n",
       "    white-space: nowrap;\r\n",
       "}\r\n",
       ".dni-treeview {\r\n",
       "    white-space: nowrap;\r\n",
       "}\r\n",
       ".dni-treeview td {\r\n",
       "    vertical-align: top;\r\n",
       "    text-align: start;\r\n",
       "}\r\n",
       "details.dni-treeview {\r\n",
       "    padding-left: 1em;\r\n",
       "}\r\n",
       "table td {\r\n",
       "    text-align: start;\r\n",
       "}\r\n",
       "table tr { \r\n",
       "    vertical-align: top; \r\n",
       "    margin: 0em 0px;\r\n",
       "}\r\n",
       "table tr td pre \r\n",
       "{ \r\n",
       "    vertical-align: top !important; \r\n",
       "    margin: 0em 0px !important;\r\n",
       "} \r\n",
       "table th {\r\n",
       "    text-align: start;\r\n",
       "}\r\n",
       "</style>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "//C#获取并修改\n",
    "#!set --byref --value @fsharp:messages  --name msgList\n",
    "\n",
    "msgList.Add(\"由C#添加\");\n",
    "msgList.Display();\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "fsharp"
    }
   },
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div class=\"dni-plaintext\"><pre>[ 由F#添加, 由C#添加 ]</pre></div><style>\r\n",
       ".dni-code-hint {\r\n",
       "    font-style: italic;\r\n",
       "    overflow: hidden;\r\n",
       "    white-space: nowrap;\r\n",
       "}\r\n",
       ".dni-treeview {\r\n",
       "    white-space: nowrap;\r\n",
       "}\r\n",
       ".dni-treeview td {\r\n",
       "    vertical-align: top;\r\n",
       "    text-align: start;\r\n",
       "}\r\n",
       "details.dni-treeview {\r\n",
       "    padding-left: 1em;\r\n",
       "}\r\n",
       "table td {\r\n",
       "    text-align: start;\r\n",
       "}\r\n",
       "table tr { \r\n",
       "    vertical-align: top; \r\n",
       "    margin: 0em 0px;\r\n",
       "}\r\n",
       "table tr td pre \r\n",
       "{ \r\n",
       "    vertical-align: top !important; \r\n",
       "    margin: 0em 0px !important;\r\n",
       "} \r\n",
       "table th {\r\n",
       "    text-align: start;\r\n",
       "}\r\n",
       "</style>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "//F#中的原数组，已被C#修改\n",
    "messages"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## `#!value` 内核，直接设置值"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "在笔记本中使用文本是很常见的需求。这些文本可能是JSON、CSV、XML或其他格式。它们可能存在于文件中、剪贴板上，或者在网页上。\n",
    "\n",
    "为了尽可能方便地将这些文本导入到笔记本中的变量里，我们提供了`#!value`魔法命令。需要知道的重要一点是，这是一个别名，指向一个专门设计用于存储值的子内核。这意味着一旦将某些内容存储在其中，就可以通过或从另一个子内核访问它(`#!set` `#!share`)\n",
    "\n",
    "有三种方法可以使用来将数据导入到你的笔记本会话中："
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "+ 剪贴板\n",
    "\n",
    "最简单的使用方法是将一些文本粘贴到单元格中。文本将被存储为字符串，但与在C#、F#或PowerShell中使用字面量不同，这里不需要转义任何内容。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "value"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{\r\n",
       "    \"Id\":2,\r\n",
       "    \"Name\":\"小李\",\r\n",
       "    \"Age\":33\r\n",
       "}"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "#!value --name StudentJson\n",
    "{\n",
    "    \"Id\":2,\n",
    "    \"Name\":\"小李\",\n",
    "    \"Age\":33\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{\r\n",
       "    \"Id\":2,\r\n",
       "    \"Name\":\"小李\",\r\n",
       "    \"Age\":33\r\n",
       "}"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "#!set --name fromValueKernel --value @value:StudentJson\n",
    "\n",
    "fromValueKernel.Display();"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "+ 文件"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "数据存储在一个文件中时，使用带有选项的命令：#!value--from-file, 获取共享数据。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "value"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{\r\n",
       "    \"Id\":2,\r\n",
       "    \"Name\":\"小李\",\r\n",
       "    \"Age\":33\r\n",
       "}"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "#!value --name fromFileData --from-file ./shared/file/data.json"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{\r\n",
       "    \"Id\":2,\r\n",
       "    \"Name\":\"小李\",\r\n",
       "    \"Age\":33\r\n",
       "}"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "#!set --name fromValueFileData --value @value:fromFileData\n",
    "\n",
    "fromValueFileData.Display();"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "+ URL"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "source": [
    "也可以使用--from-url选项，从一个URL地址获取数据"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "value"
    }
   },
   "outputs": [
    {
     "data": {
      "application/json": {
       "code": 403
      }
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "#!value --name fromUrlData --from-url https://www.qq.com"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "csharp"
    }
   },
   "outputs": [
    {
     "data": {
      "text/html": [
       "<details class=\"dni-treeview\"><summary><span class=\"dni-code-hint\"><code>{\n",
       "    &quot;code&quot;:403\n",
       "}</code></span></summary><div><table><thead><tr></tr></thead><tbody><tr><td>code</td><td><span><div class=\"dni-plaintext\"><pre>403</pre></div></span></td></tr></tbody></table></div></details><style>\r\n",
       ".dni-code-hint {\r\n",
       "    font-style: italic;\r\n",
       "    overflow: hidden;\r\n",
       "    white-space: nowrap;\r\n",
       "}\r\n",
       ".dni-treeview {\r\n",
       "    white-space: nowrap;\r\n",
       "}\r\n",
       ".dni-treeview td {\r\n",
       "    vertical-align: top;\r\n",
       "    text-align: start;\r\n",
       "}\r\n",
       "details.dni-treeview {\r\n",
       "    padding-left: 1em;\r\n",
       "}\r\n",
       "table td {\r\n",
       "    text-align: start;\r\n",
       "}\r\n",
       "table tr { \r\n",
       "    vertical-align: top; \r\n",
       "    margin: 0em 0px;\r\n",
       "}\r\n",
       "table tr td pre \r\n",
       "{ \r\n",
       "    vertical-align: top !important; \r\n",
       "    margin: 0em 0px !important;\r\n",
       "} \r\n",
       "table th {\r\n",
       "    text-align: start;\r\n",
       "}\r\n",
       "</style>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "#!set --name fromValueUrlData --value @value:fromUrlData\n",
    "\n",
    "fromValueUrlData.Display();"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 指定 MIME 类型"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "无论使用哪种方法，都可以使用`--mime-type`选项在提交时选择在笔记本中显示值。如果笔记本前端知道如何显示mime类型，可以看到它格式正确："
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {
    "polyglot_notebook": {
     "kernelName": "value"
    }
   },
   "outputs": [
    {
     "data": {
      "application/json": {
       "Adress": {
        "Code": "0394",
        "info": "变法路36号101"
       },
       "Id": 2,
       "Name": "小张"
      }
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "#!value --name JsonData --mime-type application/json\n",
    "{\n",
    "    \"Id\":2,\n",
    "    \"Name\":\"小张\",\n",
    "    \"Adress\":{\n",
    "        \"Code\":\"0394\",\n",
    "        \"info\":\"变法路36号101\"\n",
    "    }\n",
    "}"
   ]
  }
 ],
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