diff --git "a/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/HelloWorld.json" "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/HelloWorld.json"
new file mode 100644
index 0000000000000000000000000000000000000000..b6525bd810a0939e57b9dcac2fcc05781f87c662
--- /dev/null
+++ "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/HelloWorld.json"	
@@ -0,0 +1,5 @@
+{
+    "type": "code_options",
+    "author": "kinfey",
+    "source": "HelloWorld.md"
+}
\ No newline at end of file
diff --git "a/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/HelloWorld.md" "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/HelloWorld.md"
new file mode 100644
index 0000000000000000000000000000000000000000..10684981e818dc88f2521ed1f9a4803c69f938ea
--- /dev/null
+++ "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/HelloWorld.md"	
@@ -0,0 +1,50 @@
+# 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!");
+
+```
+
diff --git "a/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/config.json" "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..6095e1ab3d6e53110b8d0d2fb0a330e0ff80f7e1
--- /dev/null
+++ "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/config.json"	
@@ -0,0 +1,14 @@
+{
+    "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
diff --git "a/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/sample1/Program.cs" "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/sample1/Program.cs"
new file mode 100644
index 0000000000000000000000000000000000000000..83fa4f4d5fd1f545f64172b044a07814db23104f
--- /dev/null
+++ "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/sample1/Program.cs"	
@@ -0,0 +1,2 @@
+// See https://aka.ms/new-console-template for more information
+Console.WriteLine("Hello, World!");
diff --git "a/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/sample1/sample1.csproj" "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/sample1/sample1.csproj"
new file mode 100644
index 0000000000000000000000000000000000000000..40c60dd4c884340c455eab8a0020f7c681a4e76c
--- /dev/null
+++ "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/1.Hello World/sample1/sample1.csproj"	
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git "a/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/2.\347\256\200\344\273\213/Intro.json" "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/2.\347\256\200\344\273\213/Intro.json"
new file mode 100644
index 0000000000000000000000000000000000000000..749fc86afb14e774a923fa47114c30476a4c6e7d
--- /dev/null
+++ "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/2.\347\256\200\344\273\213/Intro.json"
@@ -0,0 +1,5 @@
+{
+    "type": "code_options",
+    "author": "kinfey",
+    "source": "Intro.md"
+}
\ No newline at end of file
diff --git "a/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/2.\347\256\200\344\273\213/Intro.md" "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/2.\347\256\200\344\273\213/Intro.md"
new file mode 100644
index 0000000000000000000000000000000000000000..25d7215b22bf8a9c7da1c9ebb2e8bced93c7fd91
--- /dev/null
+++ "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/2.\347\256\200\344\273\213/Intro.md"
@@ -0,0 +1,31 @@
+# .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
diff --git "a/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/2.\347\256\200\344\273\213/config.json" "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/2.\347\256\200\344\273\213/config.json"
new file mode 100644
index 0000000000000000000000000000000000000000..14c4bc14bd3e4df8221ab1bcb4e6f82fc2cc6179
--- /dev/null
+++ "b/data/1..NET\345\210\235\351\230\266/1.\345\205\245\351\227\250/2.\347\256\200\344\273\213/config.json"
@@ -0,0 +1,11 @@
+{
+    "node_id": "",
+    "keywords": [
+      "dotnet",
+      ".NET",
+      "跨平台"
+    ],
+    "export": [
+      "Intro.json"
+    ]
+}
\ No newline at end of file
diff --git "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/1.csharp\347\256\200\344\273\213/config.json" "b/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/1.csharp\347\256\200\344\273\213/config.json"
deleted file mode 100644
index 5a0b3a3afcb91b19dc1dbf10ed9e007150da0dd5..0000000000000000000000000000000000000000
--- "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/1.csharp\347\256\200\344\273\213/config.json"
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "node_id": "csharp-37f9119660e445a48b065052b38c7687",
-  "keywords": [
-    "c#的起源",
-    "起源",
-    "c#"
-  ],
-  "children": [],
-  "export": [
-      "helloworld.json"
-  ]
-}
\ No newline at end of file
diff --git "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/1.csharp\347\256\200\344\273\213/helloworld.json" "b/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/1.csharp\347\256\200\344\273\213/helloworld.json"
deleted file mode 100644
index 8bb392f99f3c9a42e20281f66781cffb45750e95..0000000000000000000000000000000000000000
--- "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/1.csharp\347\256\200\344\273\213/helloworld.json"
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-    "type": "code_options",
-    "author": "幻灰龙",
-    "source": "helloworld.md",
-    "notebook_enable": true
-}
\ No newline at end of file
diff --git "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/1.csharp\347\256\200\344\273\213/helloworld.md" "b/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/1.csharp\347\256\200\344\273\213/helloworld.md"
deleted file mode 100644
index de9121787a221f40058f09c033c057860fe211ce..0000000000000000000000000000000000000000
--- "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/1.csharp\347\256\200\344\273\213/helloworld.md"
+++ /dev/null
@@ -1,55 +0,0 @@
-# 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
diff --git "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/2.\345\256\211\350\243\205.NET/config.json" "b/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/2.\345\256\211\350\243\205.NET/config.json"
deleted file mode 100644
index a66934ba770591cffdd99d5a25b04461925a443a..0000000000000000000000000000000000000000
--- "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/2.\345\256\211\350\243\205.NET/config.json"
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "node_id": "csharp-ab27adf6911e4530bd1716526c12781c",
-  "keywords": [],
-  "children": [],
-  "export": []
-}
\ No newline at end of file
diff --git "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/config.json" "b/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/config.json"
deleted file mode 100644
index c765758c8b3b21b464075049fc817bf7dd0937b5..0000000000000000000000000000000000000000
--- "a/data/1.csharp\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/config.json"
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "node_id": "csharp-08a7251782494105ba037cc4f59ddf0c",
-  "keywords": []
-}
\ No newline at end of file
diff --git "a/data/1.csharp\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/config.json" "b/data/1.csharp\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/config.json"
deleted file mode 100644
index 72666ed9d9ccfd4ca94a8f4137aaead83a25834d..0000000000000000000000000000000000000000
--- "a/data/1.csharp\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/config.json"
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "node_id": "csharp-78ef60a83e3a45dca08ded3b6e9e806a",
-  "keywords": []
-}
\ No newline at end of file
diff --git "a/data/1.csharp\345\210\235\351\230\266/config.json" "b/data/1.csharp\345\210\235\351\230\266/config.json"
deleted file mode 100644
index c620655a77c9c5f548f784ef10bf14807acaa436..0000000000000000000000000000000000000000
--- "a/data/1.csharp\345\210\235\351\230\266/config.json"
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "node_id": "csharp-0d59ee87a1c24dec86cd6174eda22d8e",
-  "keywords": []
-}
\ No newline at end of file
diff --git "a/data/2.csharp\344\270\255\351\230\266/config.json" "b/data/2.csharp\344\270\255\351\230\266/config.json"
deleted file mode 100644
index 799e0b9cd32aee99a554a47f53bec2e4a648bb74..0000000000000000000000000000000000000000
--- "a/data/2.csharp\344\270\255\351\230\266/config.json"
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "node_id": "csharp-e5ec4e73aa7842fda7fc5e2a3523373e",
-  "keywords": []
-}
\ No newline at end of file
diff --git "a/data/3.csharp\351\253\230\351\230\266/config.json" "b/data/3.csharp\351\253\230\351\230\266/config.json"
deleted file mode 100644
index 6465aeea8c52acec9f3844f45cf2ad64c2bf5796..0000000000000000000000000000000000000000
--- "a/data/3.csharp\351\253\230\351\230\266/config.json"
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "node_id": "csharp-7767ed91286e423fafc5c4637935199c",
-  "keywords": []
-}
\ No newline at end of file
diff --git a/data/config.json b/data/config.json
deleted file mode 100644
index 66ee44e71d9c1965f53c0c5a07ef15b9e101beb3..0000000000000000000000000000000000000000
--- a/data/config.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "tree_name": "csharp",
-  "keywords": [],
-  "node_id": "csharp-0991d7a5f9a242e4983005d8ff53b086"
-}
\ No newline at end of file
diff --git a/data/tree.json b/data/tree.json
deleted file mode 100644
index 078f00c9f52e363aaa521025cd00fbabe16ddd5e..0000000000000000000000000000000000000000
--- a/data/tree.json
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "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