diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..c25d99f
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,7 @@
+Copyright © 2018-2023 Jimes Yang <sndnvaps@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/README.md b/README.md
index 763583c..e67858e 100644
--- a/README.md
+++ b/README.md
@@ -3,13 +3,13 @@
 
 # It can download from Nuget.com use Powershell
 
-	Install-Package Phonedata -Version 1.1.0
+	Install-Package Phonedata -Version 1.2.1
 	
 # Test Platform:
 
-    Windows 7 x64
-    vs 2017
+    Windows 7 x64/Widnwos 10 x64
     Net Framework v4.6.1
+    dotnet core 6.0 
 
 --------------------------------------------
 
diff --git a/phonedata/Properties/AssemblyInfo.cs b/phonedata/Properties/AssemblyInfo.cs
index 2a33410..8d11850 100644
--- a/phonedata/Properties/AssemblyInfo.cs
+++ b/phonedata/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@
 // 可以指定所有值，也可以使用以下所示的 "*" 预置版本号和修订号
 // 方法是按如下所示使用“*”: :
 // [assembly: AssemblyVersion("1.1.*")]
-[assembly: AssemblyVersion("1.2.0")]
-[assembly: AssemblyFileVersion("1.2.0")]
+[assembly: AssemblyVersion("1.2.1")]
+[assembly: AssemblyFileVersion("1.2.1")]
diff --git a/phonedata/phonedata.dotnet.1.2.1.nupkg b/phonedata/phonedata.dotnet.1.2.1.nupkg
new file mode 100644
index 0000000..29ff7cb
Binary files /dev/null and b/phonedata/phonedata.dotnet.1.2.1.nupkg differ
diff --git a/phonedata/phonedata.dotnet.csproj b/phonedata/phonedata.dotnet.csproj
index 7cc9c86..d240da8 100644
--- a/phonedata/phonedata.dotnet.csproj
+++ b/phonedata/phonedata.dotnet.csproj
@@ -2,9 +2,10 @@
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-  </PropertyGroup>
-  <PropertyGroup>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+    <PackageLicenseFile>LICENSE.txt</PackageLicenseFile>
+
   </PropertyGroup>
   <ItemGroup>
     <None Include="App.config" />
@@ -14,5 +15,7 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
     </Content>
+    <None Include="..\README.md" Pack="true" PackagePath="$(PackageReadmeFile)"/>
+    <None Include="..\LICENSE.txt" Pack="true" PackagePath="$(PackageLicenseFile)"/>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/phonedata/phonedata.dotnet.nuspec b/phonedata/phonedata.dotnet.nuspec
new file mode 100644
index 0000000..372fbf3
--- /dev/null
+++ b/phonedata/phonedata.dotnet.nuspec
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
+  <metadata>
+    <id>phonedata.dotnet</id>
+    <version>$version$</version>
+    <title>$title$</title>
+    <authors>$author$</authors>
+    <owners>$author$</owners>
+    <licenseUrl>https://sndnvaps.mit-license.org/2018</licenseUrl>
+    <projectUrl>https://github.com/sndnvaps/Phonedata</projectUrl>
+    <releaseNotes>Forth release.</releaseNotes>
+    <copyright>Copyright 2018 - 2023</copyright>
+    <tags>v1.0.0 v1.0.2 v1.1.0 v1.2.1</tags>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <dependencies>
+      <group targetFramework=".NETStandard2.0" />
+    </dependencies>
+    <contentFiles>
+      <files include="any/netstandard2.0/phone.dat" buildAction="Content" />
+    </contentFiles>
+  </metadata>
+</package>
\ No newline at end of file
diff --git a/phonedata/phonedata.nuspec b/phonedata/phonedata.nuspec
index aded809..adb9592 100644
--- a/phonedata/phonedata.nuspec
+++ b/phonedata/phonedata.nuspec
@@ -10,8 +10,8 @@
     <projectUrl>https://github.com/sndnvaps/Phonedata</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>$description$</description>
-    <releaseNotes>Third release.</releaseNotes>
-    <copyright>Copyright 2018 - 2019</copyright>
-    <tags>v1.0.0 v1.0.2 v1.1.0</tags>
+    <releaseNotes>Forth release.</releaseNotes>
+    <copyright>Copyright 2018 - 2023</copyright>
+    <tags>v1.0.0 v1.0.2 v1.1.0 v1.2.0</tags>
   </metadata>
 </package>
\ No newline at end of file
diff --git a/phonedatacmd/phonedatacmd.dotnet.csproj b/phonedatacmd/phonedatacmd.dotnet.csproj
index 4a51a60..120b378 100644
--- a/phonedatacmd/phonedatacmd.dotnet.csproj
+++ b/phonedatacmd/phonedatacmd.dotnet.csproj
@@ -3,15 +3,14 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>net6.0</TargetFramework>
+    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
   </PropertyGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\phonedata\phonedata.dotnet.csproj" />
   </ItemGroup>
 
-  <PropertyGroup>
-    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
-  </PropertyGroup>
   <ItemGroup>
     <None Include="App.config" />
   </ItemGroup>
@@ -25,5 +24,6 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
     </Content>
+    <None Include="..\README.md" Pack="true" PackagePath="\"/>
   </ItemGroup>
 </Project>
\ No newline at end of file