diff --git a/JD.SDK/Class1.cs b/JD.SDK/Class1.cs
new file mode 100644
index 0000000..2ad75f2
--- /dev/null
+++ b/JD.SDK/Class1.cs
@@ -0,0 +1,7 @@
+namespace JD.SDK
+{
+    public class Class1
+    {
+
+    }
+}
\ No newline at end of file
diff --git a/JD.SDK/JD.SDK.csproj b/JD.SDK/JD.SDK.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/JD.SDK/JD.SDK.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/_1688.SDK/Class1.cs b/_1688.SDK/Class1.cs
new file mode 100644
index 0000000..6cbbe01
--- /dev/null
+++ b/_1688.SDK/Class1.cs
@@ -0,0 +1,7 @@
+namespace _1688.SDK
+{
+    public class Class1
+    {
+
+    }
+}
\ No newline at end of file
diff --git a/_1688.SDK/_1688.SDK.csproj b/_1688.SDK/_1688.SDK.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/_1688.SDK/_1688.SDK.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/bbwyb.sln b/bbwyb.sln
index 51bc4af..4097edf 100644
--- a/bbwyb.sln
+++ b/bbwyb.sln
@@ -31,6 +31,10 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "C", "C", "{AE01E0D8-FE79-4E
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "B", "B", "{0142C6AF-5824-4665-8E9E-3A3C547BA109}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "_1688.SDK", "_1688.SDK\_1688.SDK.csproj", "{450F51B1-29E6-47F3-A517-AD5814EC9129}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "JD.SDK", "JD.SDK\JD.SDK.csproj", "{A4C4F802-D298-42DE-B410-50C8C87EFFAA}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -69,6 +73,14 @@ Global
 		{D5D93778-14D7-45F7-A77C-397FDBA408A1}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{D5D93778-14D7-45F7-A77C-397FDBA408A1}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{D5D93778-14D7-45F7-A77C-397FDBA408A1}.Release|Any CPU.Build.0 = Release|Any CPU
+		{450F51B1-29E6-47F3-A517-AD5814EC9129}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{450F51B1-29E6-47F3-A517-AD5814EC9129}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{450F51B1-29E6-47F3-A517-AD5814EC9129}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{450F51B1-29E6-47F3-A517-AD5814EC9129}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A4C4F802-D298-42DE-B410-50C8C87EFFAA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A4C4F802-D298-42DE-B410-50C8C87EFFAA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A4C4F802-D298-42DE-B410-50C8C87EFFAA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A4C4F802-D298-42DE-B410-50C8C87EFFAA}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -83,6 +95,8 @@ Global
 		{0415B31B-5A4E-4F7C-9F3B-69CB6284E4F1} = {1191C1AE-7275-4643-AF24-BEC852717299}
 		{442CC858-3A90-48EE-932D-756169EAC2A4} = {B4ED118A-2CFF-4E8F-B395-608E90C6D0C2}
 		{D5D93778-14D7-45F7-A77C-397FDBA408A1} = {B4ED118A-2CFF-4E8F-B395-608E90C6D0C2}
+		{450F51B1-29E6-47F3-A517-AD5814EC9129} = {B4ED118A-2CFF-4E8F-B395-608E90C6D0C2}
+		{A4C4F802-D298-42DE-B410-50C8C87EFFAA} = {B4ED118A-2CFF-4E8F-B395-608E90C6D0C2}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {0D069898-04B7-4D24-A6A4-D7C703B8BFFC}