2023-11-2

2023-11-02 19:39:01 +08:00
parent 4b6865201d
commit 0120d56856
16 changed files with 766 additions and 0 deletions
--- a/Classwork3/实验报告.doc
+++ b/Classwork3/实验报告.doc
--- a/Classwork4/实验报告.doc
+++ b/Classwork4/实验报告.doc
--- a/Classwork5/Classwork5.sln
+++ b/Classwork5/Classwork5.sln
@@ -0,0 +1,61 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.7.34202.233
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "S5_1", "S5_1\S5_1.vcxproj", "{53C4E68E-DEDB-47D7-AC4B-11B9D53F3F83}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "S5_3", "S5_3\S5_3.vcxproj", "{C4B15A41-F945-41D5-AC8C-8422A599BD35}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "S5_2", "S5_2\S5_2.vcxproj", "{AA5F01DE-4709-4215-BD8D-71B7835CFDA3}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "S5_4", "S5_4\S5_4.vcxproj", "{E3ECDBEC-48DF-4F5E-8DDE-26ADB3F0D3DC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{53C4E68E-DEDB-47D7-AC4B-11B9D53F3F83}.Debug|x64.ActiveCfg = Debug|x64
+		{53C4E68E-DEDB-47D7-AC4B-11B9D53F3F83}.Debug|x64.Build.0 = Debug|x64
+		{53C4E68E-DEDB-47D7-AC4B-11B9D53F3F83}.Debug|x86.ActiveCfg = Debug|Win32
+		{53C4E68E-DEDB-47D7-AC4B-11B9D53F3F83}.Debug|x86.Build.0 = Debug|Win32
+		{53C4E68E-DEDB-47D7-AC4B-11B9D53F3F83}.Release|x64.ActiveCfg = Release|x64
+		{53C4E68E-DEDB-47D7-AC4B-11B9D53F3F83}.Release|x64.Build.0 = Release|x64
+		{53C4E68E-DEDB-47D7-AC4B-11B9D53F3F83}.Release|x86.ActiveCfg = Release|Win32
+		{53C4E68E-DEDB-47D7-AC4B-11B9D53F3F83}.Release|x86.Build.0 = Release|Win32
+		{C4B15A41-F945-41D5-AC8C-8422A599BD35}.Debug|x64.ActiveCfg = Debug|x64
+		{C4B15A41-F945-41D5-AC8C-8422A599BD35}.Debug|x64.Build.0 = Debug|x64
+		{C4B15A41-F945-41D5-AC8C-8422A599BD35}.Debug|x86.ActiveCfg = Debug|Win32
+		{C4B15A41-F945-41D5-AC8C-8422A599BD35}.Debug|x86.Build.0 = Debug|Win32
+		{C4B15A41-F945-41D5-AC8C-8422A599BD35}.Release|x64.ActiveCfg = Release|x64
+		{C4B15A41-F945-41D5-AC8C-8422A599BD35}.Release|x64.Build.0 = Release|x64
+		{C4B15A41-F945-41D5-AC8C-8422A599BD35}.Release|x86.ActiveCfg = Release|Win32
+		{C4B15A41-F945-41D5-AC8C-8422A599BD35}.Release|x86.Build.0 = Release|Win32
+		{AA5F01DE-4709-4215-BD8D-71B7835CFDA3}.Debug|x64.ActiveCfg = Debug|x64
+		{AA5F01DE-4709-4215-BD8D-71B7835CFDA3}.Debug|x64.Build.0 = Debug|x64
+		{AA5F01DE-4709-4215-BD8D-71B7835CFDA3}.Debug|x86.ActiveCfg = Debug|Win32
+		{AA5F01DE-4709-4215-BD8D-71B7835CFDA3}.Debug|x86.Build.0 = Debug|Win32
+		{AA5F01DE-4709-4215-BD8D-71B7835CFDA3}.Release|x64.ActiveCfg = Release|x64
+		{AA5F01DE-4709-4215-BD8D-71B7835CFDA3}.Release|x64.Build.0 = Release|x64
+		{AA5F01DE-4709-4215-BD8D-71B7835CFDA3}.Release|x86.ActiveCfg = Release|Win32
+		{AA5F01DE-4709-4215-BD8D-71B7835CFDA3}.Release|x86.Build.0 = Release|Win32
+		{E3ECDBEC-48DF-4F5E-8DDE-26ADB3F0D3DC}.Debug|x64.ActiveCfg = Debug|x64
+		{E3ECDBEC-48DF-4F5E-8DDE-26ADB3F0D3DC}.Debug|x64.Build.0 = Debug|x64
+		{E3ECDBEC-48DF-4F5E-8DDE-26ADB3F0D3DC}.Debug|x86.ActiveCfg = Debug|Win32
+		{E3ECDBEC-48DF-4F5E-8DDE-26ADB3F0D3DC}.Debug|x86.Build.0 = Debug|Win32
+		{E3ECDBEC-48DF-4F5E-8DDE-26ADB3F0D3DC}.Release|x64.ActiveCfg = Release|x64
+		{E3ECDBEC-48DF-4F5E-8DDE-26ADB3F0D3DC}.Release|x64.Build.0 = Release|x64
+		{E3ECDBEC-48DF-4F5E-8DDE-26ADB3F0D3DC}.Release|x86.ActiveCfg = Release|Win32
+		{E3ECDBEC-48DF-4F5E-8DDE-26ADB3F0D3DC}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {2ADC7E56-C6AD-483C-A59A-F2F2AD706623}
+	EndGlobalSection
+EndGlobal
--- a/Classwork5/S5_1/S5_1.cpp
+++ b/Classwork5/S5_1/S5_1.cpp
@@ -0,0 +1,16 @@
+#include <iostream>
+using namespace std;
+int main()
+{
+	int t = 2;
+	int s = 0;
+	for (int i=1;i<=7;i++)
+	{
+		s = s + t;
+		t = t * 10 + 2;
+	}
+	cout << "2+22+222+...+2222222=" << s << endl;
+	return 0;
+}
+
+// 2+22+222+...+2222222=2469134
--- a/Classwork5/S5_1/S5_1.vcxproj
+++ b/Classwork5/S5_1/S5_1.vcxproj
@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>17.0</VCProjectVersion>
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+    <ProjectGuid>{53c4e68e-dedb-47d7-ac4b-11b9d53f3f83}</ProjectGuid>
+    <RootNamespace>S51</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
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+    <CharacterSet>Unicode</CharacterSet>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="S5_1.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
--- a/Classwork5/S5_1/S5_1.vcxproj.filters
+++ b/Classwork5/S5_1/S5_1.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="S5_1.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
--- a/Classwork5/S5_2/S5_2.cpp
+++ b/Classwork5/S5_2/S5_2.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+using namespace std;
+int main()
+{
+	float y = 1, t = 1;
+	int n;
+	cout << "Input n:";
+	cin >> n;
+	for (int i=2;i<=n;i++)
+	{
+		t = t * i;
+		y = y + t;
+	}
+	cout << "1!+2!+3!+...+" << n << "! = " << y << endl;
+	return 0;
+}
+
+// 6 -> 873
--- a/Classwork5/S5_2/S5_2.vcxproj
+++ b/Classwork5/S5_2/S5_2.vcxproj
@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>17.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{aa5f01de-4709-4215-bd8d-71b7835cfda3}</ProjectGuid>
+    <RootNamespace>S52</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="S5_2.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
--- a/Classwork5/S5_2/S5_2.vcxproj.filters
+++ b/Classwork5/S5_2/S5_2.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="S5_2.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
--- a/Classwork5/S5_3/S5_3.cpp
+++ b/Classwork5/S5_3/S5_3.cpp
@@ -0,0 +1,16 @@
+#include <iostream>
+#include <cmath>
+using namespace std;
+int main()
+{
+	double x, y, z;
+	cin >> x;
+	z = x;
+	do
+	{
+		y = z;
+		z = ((2.0 / 3.0) * y) + (x / (3 * y * y));
+	} while (fabs(z - y) > 10e-5);
+	cout << y << endl;
+	return 0;
+}
--- a/Classwork5/S5_3/S5_3.vcxproj
+++ b/Classwork5/S5_3/S5_3.vcxproj
@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
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--- a/Classwork5/S5_3/S5_3.vcxproj.filters
+++ b/Classwork5/S5_3/S5_3.vcxproj.filters
@@ -0,0 +1,22 @@
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--- a/Classwork5/S5_4/S5_4.cpp
+++ b/Classwork5/S5_4/S5_4.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+#include <cmath>
+using namespace std;
+int main()
+{
+	long double x, y=0, o;
+	long long int i, j, n, r, p;
+	cout << "x=";
+	cin >> x;
+	cout << "n=";
+	cin >> n;
+	for (i = 1; i <= 2 * n - 1; i = i + 2)
+	{
+		if ((((i - 1) / 2) % 2) == 0) r = 1; else r = -1;
+		o = 1; p = 1;
+		o = pow(x, i);
+		for (j=1; j<=i; j++)
+		{
+			p = p * j;
+		}
+		y = y + (r * (o / p));
+	}
+	cout << "y=" << y << endl;
+	return 0;
+}
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+++ b/Classwork5/S5_4/S5_4.vcxproj
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--- a/Classwork5/S5_4/S5_4.vcxproj.filters
+++ b/Classwork5/S5_4/S5_4.vcxproj.filters
@@ -0,0 +1,22 @@
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--- a/Classwork5/实验报告.doc
+++ b/Classwork5/实验报告.doc