初始化目录

data/1..NET初阶/1.入门/1.Hello World/HelloWorld.json

+{
+    "type": "code_options",
+    "author": "kinfey",
+    "source": "HelloWorld.md"
+}
\ No newline at end of file

data/1..NET初阶/1.入门/1.Hello World/HelloWorld.md

+# Hello World
+
+
+以下 `Hello World` 程序中，能够正确输出内容的是：
+
+## 控制台
+
+### 运行
+
+```bash
+
+dotnet new console --output sample1
+dotnet run --project sample1
+
+```
+
+## 答案
+
+```csharp
+
+Console.WriteLine("Hello, World!");
+
+```
+
+## 选项
+
+### A
+
+```csharp
+
+System.out.printf("Hello World");
+
+```
+
+### B
+
+```csharp
+
+println("Hello World");
+
+```
+
+### C
+
+```csharp
+
+Console.WriteLine("Hello, World!");
+
+```
+

data/1..NET初阶/1.入门/1.Hello World/config.json

+{
+    "node_id": "",
+    "keywords": [
+      "控制台",
+      "dotnet new",
+      "程序入口"
+    ],
+    "children": [],
+    "export": [
+      "HelloWorld.json"
+    ],
+    "title": "Hello World"
+  }
+  
\ No newline at end of file

data/1..NET初阶/1.入门/1.Hello World/sample1/Program.cs

+// See https://aka.ms/new-console-template for more information
+Console.WriteLine("Hello, World!");

data/1..NET初阶/1.入门/1.Hello World/sample1/sample1.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

data/1..NET初阶/1.入门/2.简介/Intro.json

+{
+    "type": "code_options",
+    "author": "kinfey",
+    "source": "Intro.md"
+}
\ No newline at end of file

data/1..NET初阶/1.入门/2.简介/Intro.md

+# .NET 简介
+
+
+以下关于 `.NET描述正确的是` 的说法正确的是：
+
+
+## 答案
+
+```
+所有选项均正确
+```
+
+## 选项
+
+### A
+
+```
+.NET 是一种用于构建多种应用的免费开源开发平台
+```
+
+### B
+
+```
+.NET 是开放源代码，使用 MIT 和 Apache 2 许可证。 .NET 是 .NET Foundation 的项目。
+```
+
+### C
+
+```
+Microsoft 支持在 Windows、macOS 和 Linux 上使用 .NET。 它会定期更新以保证安全和质量（每月的第二个星期二）
+```
\ No newline at end of file

data/1..NET初阶/1.入门/2.简介/config.json

+{
+    "node_id": "",
+    "keywords": [
+      "dotnet",
+      ".NET",
+      "跨平台"
+    ],
+    "export": [
+      "Intro.json"
+    ]
+}
\ No newline at end of file

data/1.csharp初阶/1.预备知识/1.csharp简介/config.json

-{
-  "node_id": "csharp-37f9119660e445a48b065052b38c7687",
-  "keywords": [
-    "c#的起源",
-    "起源",
-    "c#"
-  ],
-  "children": [],
-  "export": [
-      "helloworld.json"
-  ]
-}
\ No newline at end of file

data/1.csharp初阶/1.预备知识/1.csharp简介/helloworld.json

-{
-    "type": "code_options",
-    "author": "幻灰龙",
-    "source": "helloworld.md",
-    "notebook_enable": true
-}
\ No newline at end of file

data/1.csharp初阶/1.预备知识/1.csharp简介/helloworld.md

-# Hello World
-
-编写一个输出 "Hello,World!" 的 C# 程序，以下错误的是？
-
-## 答案
-
-```csharp
-using System;
-public class Program{
-    public static void Main(){
-        String str1 = "Hello,";
-        String str2 = "World!";
-        Console.WriteLine("str1"+"str2");
-    }
-}
-```
-
-## 选项
-
-### 直接打印
-
-```csharp
-using System;
-public class Program{
-    public static void Main(){
-        Console.WriteLine("Hello,World!");
-    }
-}
-```
-
-### 两个字符串拼接
-
-```csharp
-using System;
-public class Program{
-    public static void Main(){
-        String str1 = "Hello,";
-        String str2 = "World!";
-        Console.WriteLine(str1+str2);
-    }
-}
-```
-
-### 使用 var 关键字
-
-```csharp
-using System;
-public class Program{
-    public static void Main(){
-        var str1 = "Hello,";
-        var str2 = "World!";
-        Console.WriteLine(str1+str2);
-    }
-}
-```
\ No newline at end of file

data/1.csharp初阶/1.预备知识/2.安装.NET/config.json

-{
-  "node_id": "csharp-ab27adf6911e4530bd1716526c12781c",
-  "keywords": [],
-  "children": [],
-  "export": []
-}
\ No newline at end of file

data/1.csharp初阶/1.预备知识/config.json

-{
-  "node_id": "csharp-08a7251782494105ba037cc4f59ddf0c",
-  "keywords": []
-}
\ No newline at end of file

data/1.csharp初阶/2.基础语法/config.json

-{
-  "node_id": "csharp-78ef60a83e3a45dca08ded3b6e9e806a",
-  "keywords": []
-}
\ No newline at end of file

data/1.csharp初阶/config.json

-{
-  "node_id": "csharp-0d59ee87a1c24dec86cd6174eda22d8e",
-  "keywords": []
-}
\ No newline at end of file

data/2.csharp中阶/config.json

-{
-  "node_id": "csharp-e5ec4e73aa7842fda7fc5e2a3523373e",
-  "keywords": []
-}
\ No newline at end of file

data/3.csharp高阶/config.json

-{
-  "node_id": "csharp-7767ed91286e423fafc5c4637935199c",
-  "keywords": []
-}
\ No newline at end of file

data/config.json

-{
-  "tree_name": "csharp",
-  "keywords": [],
-  "node_id": "csharp-0991d7a5f9a242e4983005d8ff53b086"
-}
\ No newline at end of file

data/tree.json

-{
-  "csharp": {
-    "node_id": "csharp-0991d7a5f9a242e4983005d8ff53b086",
-    "keywords": [],
-    "children": [
-      {
-        "csharp初阶": {
-          "node_id": "csharp-0d59ee87a1c24dec86cd6174eda22d8e",
-          "keywords": [],
-          "children": [
-            {
-              "预备知识": {
-                "node_id": "csharp-08a7251782494105ba037cc4f59ddf0c",
-                "keywords": [],
-                "children": [
-                  {
-                    "简介": {
-                      "node_id": "csharp-37f9119660e445a48b065052b38c7687",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "安装": {
-                      "node_id": "csharp-ab27adf6911e4530bd1716526c12781c",
-                      "keywords": [],
-                      "children": []
-                    }
-                  }
-                ]
-              }
-            },
-            {
-              "基础语法": {
-                "node_id": "csharp-78ef60a83e3a45dca08ded3b6e9e806a",
-                "keywords": [],
-                "children": []
-              }
-            }
-          ]
-        }
-      },
-      {
-        "csharp中阶": {
-          "node_id": "csharp-e5ec4e73aa7842fda7fc5e2a3523373e",
-          "keywords": [],
-          "children": []
-        }
-      },
-      {
-        "csharp高阶": {
-          "node_id": "csharp-7767ed91286e423fafc5c4637935199c",
-          "keywords": [],
-          "children": []
-        }
-      }
-    ]
-  }
-}
\ No newline at end of file