diff --git a/jia/chu/chu.vcxproj.user b/jia/chu/chu.vcxproj.user
new file mode 100644
index 0000000..ef5ff2a
--- /dev/null
+++ b/jia/chu/chu.vcxproj.user
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>
\ No newline at end of file
diff --git a/jia/jia.sln b/jia/jia.sln
new file mode 100644
index 0000000..ea2ddc7
--- /dev/null
+++ b/jia/jia.sln
@@ -0,0 +1,46 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2013
+VisualStudioVersion = 12.0.40629.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jia", "jia\jia.vcxproj", "{FC133E06-9EE0-4441-A557-12C5BFB381DB}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "chu", "chu\chu.vcxproj", "{1A262FA8-268E-4CDD-8411-9C91E928BB6C}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "chen", "chen\chen.vcxproj", "{D3E01979-7A19-4FCB-B43B-59E1F322215F}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jian", "jian\jian.vcxproj", "{D63C0C9A-957C-480B-91CA-63EEB17CC4D3}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "UnitTest1", "UnitTest1\UnitTest1.vcxproj", "{624E0933-6EC9-4441-B0E7-B91AD913A772}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Release|Win32 = Release|Win32
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{FC133E06-9EE0-4441-A557-12C5BFB381DB}.Debug|Win32.ActiveCfg = Debug|Win32
+		{FC133E06-9EE0-4441-A557-12C5BFB381DB}.Debug|Win32.Build.0 = Debug|Win32
+		{FC133E06-9EE0-4441-A557-12C5BFB381DB}.Release|Win32.ActiveCfg = Release|Win32
+		{FC133E06-9EE0-4441-A557-12C5BFB381DB}.Release|Win32.Build.0 = Release|Win32
+		{1A262FA8-268E-4CDD-8411-9C91E928BB6C}.Debug|Win32.ActiveCfg = Debug|Win32
+		{1A262FA8-268E-4CDD-8411-9C91E928BB6C}.Debug|Win32.Build.0 = Debug|Win32
+		{1A262FA8-268E-4CDD-8411-9C91E928BB6C}.Release|Win32.ActiveCfg = Release|Win32
+		{1A262FA8-268E-4CDD-8411-9C91E928BB6C}.Release|Win32.Build.0 = Release|Win32
+		{D3E01979-7A19-4FCB-B43B-59E1F322215F}.Debug|Win32.ActiveCfg = Debug|Win32
+		{D3E01979-7A19-4FCB-B43B-59E1F322215F}.Debug|Win32.Build.0 = Debug|Win32
+		{D3E01979-7A19-4FCB-B43B-59E1F322215F}.Release|Win32.ActiveCfg = Release|Win32
+		{D3E01979-7A19-4FCB-B43B-59E1F322215F}.Release|Win32.Build.0 = Release|Win32
+		{D63C0C9A-957C-480B-91CA-63EEB17CC4D3}.Debug|Win32.ActiveCfg = Debug|Win32
+		{D63C0C9A-957C-480B-91CA-63EEB17CC4D3}.Debug|Win32.Build.0 = Debug|Win32
+		{D63C0C9A-957C-480B-91CA-63EEB17CC4D3}.Release|Win32.ActiveCfg = Release|Win32
+		{D63C0C9A-957C-480B-91CA-63EEB17CC4D3}.Release|Win32.Build.0 = Release|Win32
+		{624E0933-6EC9-4441-B0E7-B91AD913A772}.Debug|Win32.ActiveCfg = Debug|Win32
+		{624E0933-6EC9-4441-B0E7-B91AD913A772}.Debug|Win32.Build.0 = Debug|Win32
+		{624E0933-6EC9-4441-B0E7-B91AD913A772}.Release|Win32.ActiveCfg = Release|Win32
+		{624E0933-6EC9-4441-B0E7-B91AD913A772}.Release|Win32.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal