diff --git a/ClassLibrary1/Class1.cs b/ClassLibrary1/Class1.cs
new file mode 100644
index 0000000..1c618bc
--- /dev/null
+++ b/ClassLibrary1/Class1.cs
@@ -0,0 +1,9 @@
+using System;
+
+namespace ClassLibrary1
+{
+    public class Class1
+    {
+
+    }
+}
diff --git a/ClassLibrary1/ClassLibrary1.csproj b/ClassLibrary1/ClassLibrary1.csproj
new file mode 100644
index 0000000..b4b43f4
--- /dev/null
+++ b/ClassLibrary1/ClassLibrary1.csproj
@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.1</TargetFramework>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/HuanMengProject.sln b/HuanMengProject.sln
new file mode 100644
index 0000000..50c171e
--- /dev/null
+++ b/HuanMengProject.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.10.34916.146
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ClassLibrary1", "ClassLibrary1\ClassLibrary1.csproj", "{00597C73-22E6-435E-B6D2-688177A703DC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{00597C73-22E6-435E-B6D2-688177A703DC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{00597C73-22E6-435E-B6D2-688177A703DC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{00597C73-22E6-435E-B6D2-688177A703DC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{00597C73-22E6-435E-B6D2-688177A703DC}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {4A1DC406-AFAA-4884-859C-51B9B26E37FC}
+	EndGlobalSection
+EndGlobal