diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2.sln" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2.sln"
new file mode 100644
index 0000000000000000000000000000000000000000..973128b06bc2c539cb08787d945104ea855fffa8
--- /dev/null
+++ "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2.sln"
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30011.22
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleApp2", "ConsoleApp2\ConsoleApp2.csproj", "{3801D754-A531-4AD6-B491-C032B47B0858}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{3801D754-A531-4AD6-B491-C032B47B0858}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3801D754-A531-4AD6-B491-C032B47B0858}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3801D754-A531-4AD6-B491-C032B47B0858}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3801D754-A531-4AD6-B491-C032B47B0858}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {55AEB593-6A38-417C-8CAA-A959417EA7CA}
+	EndGlobalSection
+EndGlobal
diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/.vs/VSWorkspaceState.json" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/.vs/VSWorkspaceState.json"
new file mode 100644
index 0000000000000000000000000000000000000000..d56fd04536be1957a149b79287c8d51f02548e13
--- /dev/null
+++ "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/.vs/VSWorkspaceState.json"
@@ -0,0 +1,8 @@
+{
+  "ExpandedNodes": [
+    "",
+    "\\Properties"
+  ],
+  "SelectedNode": "\\Properties\\AssemblyInfo.cs",
+  "PreviewInSolutionExplorer": false
+}
\ No newline at end of file
diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/.vs/slnx.sqlite" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/.vs/slnx.sqlite"
new file mode 100644
index 0000000000000000000000000000000000000000..25a1b047e245a1f0eaae582c3efef3504cf97804
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diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/App.config" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/App.config"
new file mode 100644
index 0000000000000000000000000000000000000000..57547288bc6146d6494f7eb02bba6f92758ff00c
--- /dev/null
+++ "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/App.config"
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/ConsoleApp2.csproj" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/ConsoleApp2.csproj"
new file mode 100644
index 0000000000000000000000000000000000000000..ff2d0f9ef7cbbf08e71fe282f1060a0e72dda443
--- /dev/null
+++ "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/ConsoleApp2.csproj"
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{3801D754-A531-4AD6-B491-C032B47B0858}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>ConsoleApp2</RootNamespace>
+    <AssemblyName>ConsoleApp2</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/Program.cs" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/Program.cs"
new file mode 100644
index 0000000000000000000000000000000000000000..25c4384036518952c3874cd64c6e5406f3ddebce
--- /dev/null
+++ "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/Program.cs"
@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConsoleApp2
+{
+     static class Program
+    {
+        static void Main(string[] args)
+        {
+            string[] arr =
+             {
+               "我很帅",
+               "知道吗",
+            };
+            arr.PrintArrayInfo();
+            
+            var str = "我比你爸帅，嘤嘤嘤";
+            var a = str.Split(',');
+            a.PrintArrayInfo();
+            foreach (var item in str)
+            {
+                Console.WriteLine(item);
+            }
+        }
+        public static void PrintArrayInfo(this string[] arr)
+        {
+            for (int  i =0;i<arr.Length;i++)
+            {
+                Console.WriteLine(arr[i]);
+            }
+        }
+    }
+}
diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/Properties/AssemblyInfo.cs" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/Properties/AssemblyInfo.cs"
new file mode 100644
index 0000000000000000000000000000000000000000..01b50df205cf971ad1a91d219d254cf339c6512c
--- /dev/null
+++ "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/Properties/AssemblyInfo.cs"
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 有关程序集的一般信息由以下
+// 控制。更改这些特性值可修改
+// 与程序集关联的信息。
+[assembly: AssemblyTitle("ConsoleApp2")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("ConsoleApp2")]
+[assembly: AssemblyCopyright("Copyright ©  2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// 将 ComVisible 设置为 false 会使此程序集中的类型
+//对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型
+//请将此类型的 ComVisible 特性设置为 true。
+[assembly: ComVisible(false)]
+
+// 如果此项目向 COM 公开，则下列 GUID 用于类型库的 ID
+[assembly: Guid("3801d754-a531-4ad6-b491-c032b47b0858")]
+
+// 程序集的版本信息由下列四个值组成: 
+//
+//      主版本
+//      次版本
+//      生成号
+//      修订号
+//
+//可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值
+//通过使用 "*"，如下所示:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/bin/Debug/ConsoleApp2.exe" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/bin/Debug/ConsoleApp2.exe"
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diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/bin/Debug/ConsoleApp2.exe.config" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/bin/Debug/ConsoleApp2.exe.config"
new file mode 100644
index 0000000000000000000000000000000000000000..57547288bc6146d6494f7eb02bba6f92758ff00c
--- /dev/null
+++ "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/bin/Debug/ConsoleApp2.exe.config"
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/bin/Debug/ConsoleApp2.pdb" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/bin/Debug/ConsoleApp2.pdb"
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diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.csproj.CoreCompileInputs.cache" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.csproj.CoreCompileInputs.cache"
new file mode 100644
index 0000000000000000000000000000000000000000..13cbe732f37c10c5ac1b524ff022e51626e89748
--- /dev/null
+++ "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.csproj.CoreCompileInputs.cache"
@@ -0,0 +1 @@
+47840f7aefefafde664d64b2b766d0c3ca758970
diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.csproj.FileListAbsolute.txt" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.csproj.FileListAbsolute.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..6b14b16eb833688ba1a9099aaf68903eb26b87e9
--- /dev/null
+++ "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.csproj.FileListAbsolute.txt"
@@ -0,0 +1,7 @@
+d:\Users\ASUS\source\repos\ConsoleApp2\ConsoleApp2\bin\Debug\ConsoleApp2.exe.config
+d:\Users\ASUS\source\repos\ConsoleApp2\ConsoleApp2\bin\Debug\ConsoleApp2.exe
+d:\Users\ASUS\source\repos\ConsoleApp2\ConsoleApp2\bin\Debug\ConsoleApp2.pdb
+d:\Users\ASUS\source\repos\ConsoleApp2\ConsoleApp2\obj\Debug\ConsoleApp2.csprojAssemblyReference.cache
+d:\Users\ASUS\source\repos\ConsoleApp2\ConsoleApp2\obj\Debug\ConsoleApp2.csproj.CoreCompileInputs.cache
+d:\Users\ASUS\source\repos\ConsoleApp2\ConsoleApp2\obj\Debug\ConsoleApp2.exe
+d:\Users\ASUS\source\repos\ConsoleApp2\ConsoleApp2\obj\Debug\ConsoleApp2.pdb
diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.csprojAssemblyReference.cache" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.csprojAssemblyReference.cache"
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diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.exe" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.exe"
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diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.pdb" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/ConsoleApp2.pdb"
new file mode 100644
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diff --git "a/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache" "b/\351\231\210\345\273\272\351\276\231/ConsoleApp2/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache"
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index 0000000000000000000000000000000000000000..8858a2c5795b6a5349fd1a273dc2466e57feda32
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