diff --git a/TEMUKJD CEFv138.sln b/TEMUKJD CEFv138.sln
index abd89ff..a2e406b 100644
--- a/TEMUKJD CEFv138.sln	
+++ b/TEMUKJD CEFv138.sln	
@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.36128.20
+# Visual Studio Version 18
+VisualStudioVersion = 18.8.12023.21 stable
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AllBase", "AllBase\AllBase.csproj", "{6461D807-B1C8-45F0-B388-E0CA1A418DE0}"
 EndProject
@@ -9,6 +9,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Work", "Work\Work.csproj",
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "KJD", "TEMUKJD\KJD.csproj", "{B8EE868D-56CD-4647-BBA5-04BEF24FF9F6}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".test", ".test", "{CE81E85E-0369-45A6-98B9-B5A07130A2E5}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "KJD.Test", "test\KJD.Test\KJD.Test.csproj", "{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -55,10 +59,25 @@ Global
 		{B8EE868D-56CD-4647-BBA5-04BEF24FF9F6}.Release|x64.Build.0 = Release|x64
 		{B8EE868D-56CD-4647-BBA5-04BEF24FF9F6}.Release|x86.ActiveCfg = Release|Any CPU
 		{B8EE868D-56CD-4647-BBA5-04BEF24FF9F6}.Release|x86.Build.0 = Release|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Debug|x64.Build.0 = Debug|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Debug|x86.Build.0 = Debug|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Release|x64.ActiveCfg = Release|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Release|x64.Build.0 = Release|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Release|x86.ActiveCfg = Release|Any CPU
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{9BCF10B0-85A2-4F0A-9D44-2C0555D28FBD} = {CE81E85E-0369-45A6-98B9-B5A07130A2E5}
+	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {A8028C02-4AC4-4504-9626-20698CAE7FD7}
 	EndGlobalSection
diff --git a/test/KJD.Test/KJD.Test.csproj b/test/KJD.Test/KJD.Test.csproj
new file mode 100644
index 0000000..26ad990
--- /dev/null
+++ b/test/KJD.Test/KJD.Test.csproj
@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.0" />
+    <PackageReference Include="NUnit" Version="4.3.2" />
+    <PackageReference Include="NUnit.Analyzers" Version="4.7.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\TEMUKJD\KJD.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="NUnit.Framework" />
+  </ItemGroup>
+
+</Project>
diff --git a/test/KJD.Test/UnitTest1.cs b/test/KJD.Test/UnitTest1.cs
new file mode 100644
index 0000000..46d7312
--- /dev/null
+++ b/test/KJD.Test/UnitTest1.cs
@@ -0,0 +1,19 @@
+using TemuKJD.BLL;
+
+namespace KJD.Test
+{
+	public class Tests
+	{
+		[SetUp]
+		public void Setup()
+		{
+		}
+
+		[Test]
+		public void Test1()
+		{
+			string json = File.ReadAllText(@"C:\Users\chaih\Documents\xwechat_files\hongfei357_a567\msg\file\2026-08\850\531430339344.txt");
+			new PDDProdFormConverter().PddFrontToPddBackConvertFactory(json);
+		}
+	}
+}