分支D完成，并提交

div/FourOperator/FourOperator.sln

@@ -0,0 +1,41 @@
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div/FourOperator/FourOperator/FourOperator.vcxproj

@@ -0,0 +1,156 @@
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div/FourOperator/FourOperator/FourOperator.vcxproj.filters

@@ -0,0 +1,36 @@
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+  </ItemGroup>
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+    <ClInclude Include="Opera_api.h">
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+    <ClInclude Include="dev.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+  </ItemGroup>
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+      <Filter>源文件</Filter>
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+  </ItemGroup>
+</Project>

div/FourOperator/FourOperator/FourOperator.vcxproj.user

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>

div/FourOperator/FourOperator/Opera_api.cpp

@@ -0,0 +1,35 @@
+#pragma once
+#include "Opera_api.h"
+#include"../../../add/A/A/add.h"
+//封装的加法函数
+long long add_api(int x, int y)
+{
+	long long res = add(x, y);
+	printf("%d + %d = %lld\n", x, y, res);
+	return res;
+}
+//.封装的减法函数
+int sub_api(int x, int y)
+{
+	printf("%d - %d = %d\n", x, y, x - y);
+	return x - y;
+}
+//封装的乘法函数
+long long mul_api(int x, int y)
+{
+	long long res;
+	HMODULE hdll = LoadLibrary("../../../mul/C/Debug/C.dll");
+	if (hdll != NULL)
+	{
+		MulFunc MUL1 = (MulFunc)GetProcAddress(hdll, (char*)(1));
+		if (MUL1 != NULL)
+		{
+			res = MUL1(x,y);
+			return res;
+		}
+		FreeLibrary(hdll);
+	}
+}
+
+
+

div/FourOperator/FourOperator/Opera_api.h

@@ -0,0 +1,10 @@
+#pragma once
+#include"sub.h"
+#include<Windows.h>
+#include <stdio.h>
+#pragma comment(lib,"./B.lib")
+
+typedef int(WINAPI* MulFunc)(int x, int y);
+long long mul_api(int x, int y);
+int sub_api(int x, int y);
+long long add_api(int x, int y);

div/FourOperator/FourOperator/dev.cpp

@@ -0,0 +1,15 @@
+#include "dev.h"
+//封装的除法函数
+int dev(int x, int y)
+{
+	if (y == 0)
+	{
+		printf("除数不能为0！\n");
+		return 0;
+	}
+	else
+	{
+		printf("%d / %d = %d\n", x, y, x / y);
+		return x / y;
+	}
+}

div/FourOperator/FourOperator/dev.h

@@ -0,0 +1,7 @@
+#pragma once
+#pragma once
+#include"sub.h"
+#include<Windows.h>
+#include <stdio.h>
+
+int dev(int x, int y);

div/FourOperator/FourOperator/main.cpp

@@ -0,0 +1,13 @@
+
+#include "Opera_api.h"
+#include "dev.h"
+int main()
+{
+	int a = 2147483647, b = 2;
+	add_api(a, b);//调用 加法接口add_api
+	sub_api(a, b);//调用 减法接口sub_api
+	mul_api(a, b);	//调用 乘法接口mul_api
+	dev(a, b);//调用 除法接口dev_api
+	
+	return 0;
+}

div/FourOperator/FourOperator/sub.h

@@ -0,0 +1,13 @@
+#ifndef _SUB_H_
+#define _SUB_H_
+
+#ifdef sub_EXPORTS
+#define sub_EXPORTS _declspec(dllexport)
+#else
+#define sub_EXPORTS _declspec(dllimport)
+#endif
+
+sub_EXPORTS int sub(int x, int y);
+
+#endif
+

div/FourOperator/UnitTest1/UnitTest1.cpp

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+#pragma once
+#include "pch.h"
+#include "CppUnitTest.h"
+#include"../FourOperator/dev.h"
+#include<Windows.h>
+#include <atlstr.h>
+#include <stdio.h>
+
+#define FilePath "..//ex1.ini"
+using namespace Microsoft::VisualStudio::CppUnitTestFramework;
+
+namespace UnitTest1
+{
+	TEST_CLASS(UnitTest1)
+	{
+	public:
+	
+#if 1		
+		int j = 0;
+		char str[50][10] = { 0 };//保存ini文件里  节的名字
+		int count = CalcCount(50, str);//保存ini文件里 节的个数
+		unsigned short i;
+		TEST_METHOD(TestMethode1)
+		{
+			int nReal;//保存运算结果
+			CString na, nb, nExpect;	//b保存不同的键值
+			for (j = 0; j < count; j++)
+			{
+				GetPrivateProfileString(str[j], "na", " ", na.GetBuffer(20), 20, FilePath);
+				GetPrivateProfileString(str[j], "nb", " ", nb.GetBuffer(20), 20, FilePath);
+				GetPrivateProfileString(str[j], "nExpect", " ", nExpect.GetBuffer(20), 20, FilePath);
+				nReal = dev(_ttoi(na), _ttoi(nb));	//_ttoi是CString转为整型
+				Assert::AreEqual(nReal, _ttoi(nExpect));
+			}
+			
+		}
+		
+	};
+}
+
+#endif			
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#if 0		
+			TEST_METHOD(a)
+			{
+				int nReal;
+				CString na, nb, nExpect;
+				//这一段程序是往 ex1.ini 文件中写入测试样例
+				//WritePrivateProfileString(_T("a"), _T("na"), _T("6"), _T("../ex1.ini"));
+				//WritePrivateProfileString(_T("a"), _T("nb"), _T("2"), _T("../ex1.ini"));
+				//WritePrivateProfileString(_T("a"), _T("QExpect"), _T("3"), _T("../ex1.ini"));
+				//这一段程序是从 ex1.ini 文件读取测试样例
+				GetPrivateProfileString(_T("a"), _T("na"), _T(" "), na.GetBuffer(20), 20, _T(FilePath));
+				GetPrivateProfileString(_T("a"), _T("nb"), _T(" "), nb.GetBuffer(20), 20, _T(FilePath));
+				GetPrivateProfileString(_T("a"), _T("nExpect"), _T(" "), nExpect.GetBuffer(20), 20, _T(FilePath));
+				nReal = dev(_ttoi(na), _ttoi(nb));
+				Assert::AreEqual(nReal, _ttoi(nExpect));
+			}
+			TEST_METHOD(b)
+			{
+				int nReal;
+				CString na, nb, nExpect;
+
+				GetPrivateProfileString(_T("b"), _T("na"), _T(" "), na.GetBuffer(20), 20, _T(FilePath));
+				GetPrivateProfileString(_T("b"), _T("nb"), _T(" "), nb.GetBuffer(20), 20, _T(FilePath));
+				GetPrivateProfileString(_T("b"), _T("nExpect"), _T(" "), nExpect.GetBuffer(20), 20, _T(FilePath));
+				nReal = dev(_ttoi(na), _ttoi(nb));
+				Assert::AreEqual(nReal, _ttoi(nExpect));
+			}
+			TEST_METHOD(c)
+			{
+				int nReal;
+				CString na, nb, nExpect;
+
+				GetPrivateProfileString(_T("c"), _T("na"), _T(" "), na.GetBuffer(20), 20, _T(FilePath));
+				GetPrivateProfileString(_T("c"), _T("nb"), _T(" "), nb.GetBuffer(20), 20, _T(FilePath));
+				GetPrivateProfileString(_T("c"), _T("nExpect"), _T(" "), nExpect.GetBuffer(20), 20, _T(FilePath));
+				nReal = dev(_ttoi(na), _ttoi(nb));
+				Assert::AreEqual(nReal, _ttoi(nExpect));
+			}
+			TEST_METHOD(TestMethod3)
+			{
+				int nReal;
+				CString na, nb, nExpect;
+
+				GetPrivateProfileString("d", "na", " ", na.GetBuffer(20), 20, FilePath);
+				GetPrivateProfileString("d", "nb", " ", nb.GetBuffer(20), 20, FilePath);
+				GetPrivateProfileString("d", "nExpect", " ", nExpect.GetBuffer(20), 20, FilePath);
+				nReal = dev(_ttoi(na), _ttoi(nb));
+				Assert::AreEqual(nReal, _ttoi(nExpect));
+			}
+#endif
+		
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

div/FourOperator/UnitTest1/UnitTest1.vcxproj

@@ -0,0 +1,174 @@
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <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" />
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+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <UseFullPaths>true</UseFullPaths>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>DebugFull</GenerateDebugInformation>
+      <AdditionalDependencies>..\FourOperator\Debug\dev.obj</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <UseFullPaths>true</UseFullPaths>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
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+    <ClCompile>
+      <PrecompiledHeader>Use</PrecompiledHeader>
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+      <IntrinsicFunctions>true</IntrinsicFunctions>
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+      <AdditionalIncludeDirectories>$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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+      <UseFullPaths>true</UseFullPaths>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
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+    </Link>
+  </ItemDefinitionGroup>
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+    <ClCompile>
+      <PrecompiledHeader>Use</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
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+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <UseFullPaths>true</UseFullPaths>
+      <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="pch.cpp">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Create</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="UnitTest1.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pch.h" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

div/FourOperator/UnitTest1/UnitTest1.vcxproj.filters

@@ -0,0 +1,30 @@
+<?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="UnitTest1.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="pch.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pch.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>

div/FourOperator/UnitTest1/UnitTest1.vcxproj.user

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>

div/FourOperator/UnitTest1/pch.cpp

@@ -0,0 +1,44 @@
+// pch.cpp: 与预编译标头对应的源文件
+#pragma once
+#include "pch.h"
+int CalcCount(int n, char(*str)[10])
+{
+	TCHAR   chSectionNames[2048] = { 0 };//定义一个数组，保存读取节的名字
+	char* pSectionName; //保存找到的某个节名字符串的首地址
+	int i = 0;          //i指向数组chSectionNames的某个位置，从0开始，顺序后移
+	int j = 0;      //j用来保存下一个节名字符串的首地址相对于当前i的位置偏移量
+	int k = 0;      //临时变量，用于给str数组赋值
+	int m = 0;      //临时变量，用于给str数组赋值
+	int count = 0;      //统计节的个数    
+	GetPrivateProfileSectionNames(chSectionNames, 2048, "..//ex1.ini");//获取文件中的节名，每个节名以"\0"分割，保存在chSectionNames中
+																	   //要加头文件
+	for (i = 0; i < 2048; i++, j++)//对chSectionName中保存的内容进行拆分
+	{
+		if (chSectionNames[0] == '\0')//如果第一个字符就是0，则说明ini中一个节也没有，
+		{
+			break;
+		}
+		if (chSectionNames[i] == '\0')
+		{
+			count++;
+			pSectionName = &chSectionNames[i - j]; //找到一个0，则说明从这个字符往前，减掉j个偏移量，
+												   //就是一个节名的首地址 
+			j = -1;                               //找到一个节名后，j的值要还原，以统计下一个节名地址的偏移量
+												  //赋成-1是因为节名字符串的最后一个字符0是终止符，不能作为节名
+			for (m = 0; m <= strlen(pSectionName); m++)//把找到的节名保存到str中
+			{
+				str[k][m] = *(pSectionName + m);
+			}
+			//str[k][++m] = '\0';//手动给节名加上\0,表示这个节名结束
+			k++;//变量自加，用来保存下一个节名
+			//在获取节名的时候可以获取该节中键的值，前提是我们知道该节中有哪些键。
+			if (chSectionNames[i + 1] == 0)
+			{
+				break;      //当两个相邻的字符都是0时，则所有的节名都已找到，循环终止
+			}
+		}
+	}
+	return count;//返回节名的个数
+}
+
+// 当使用预编译的头时，需要使用此源文件，编译才能成功。

div/FourOperator/UnitTest1/pch.h

@@ -0,0 +1,14 @@
+// pch.h: 这是预编译标头文件。
+// 下方列出的文件仅编译一次，提高了将来生成的生成性能。
+// 这还将影响 IntelliSense 性能，包括代码完成和许多代码浏览功能。
+// 但是，如果此处列出的文件中的任何一个在生成之间有更新，它们全部都将被重新编译。
+// 请勿在此处添加要频繁更新的文件，这将使得性能优势无效。
+
+#ifndef PCH_H
+#define PCH_H
+#include <stdio.h>
+
+#include<Windows.h>
+// 添加要在此处预编译的标头
+int CalcCount(int n, char(*str)[10]);
+#endif //PCH_H

div/FourOperator/ex1.ini

@@ -0,0 +1,21 @@
+[a]
+na=6
+nb=2
+nExpect=3
+[b]
+na=4
+nb=2
+nExpect=2
+[c]
+na=3
+nb=0
+nExpect=0
+[d]
+na=100
+nb=10
+nExpect=10
+[e]
+na=100
+nb=10
+nExpect=10
+

div/dev函数及其单元测试说明.md

@@ -0,0 +1,229 @@
+# dev函数说明文档    
+## 一、工程说明  
+- 本工程的配置类型是一个exe可执行文件，工程内存在四个函数接口，分别为加、减、乘、除。加法函数接口是调用add静态库实现；减法函数接口是采用在工程中配置加载sub动态库的方式实现；乘法接口以运行时加载动态库mul的方式实现；除法接口调用本身函数的方式实现。
+## 二、工程文件
+1. 除法函数  
+   - 头文件 dev.h  ，放的是dev的声明
+     ```C
+        #pragma once    
+        #include<Windows.h>    
+        #include <stdio.h>
+        /*
+        **函数名： dev
+        **参数：int ，int
+        **返回值：int
+        **函数功能：传入两个int类型的参数，对其进行除法运算并返回两数之商。
+        */
+        int dev(int x, int y);
+     ```   
+   - 源文件 dev.cpp  ，放的是dev函数的定义
+        ```C
+            #include "dev.h"
+            int dev(int x, int y)
+            {
+                if (y == 0)
+                {
+                    printf("除数不能为0！\n");
+                    return 0;
+                }
+                else
+                {
+                    printf("%d / %d = %d\n", x, y, x / y);
+                    return x / y;
+                }
+            }
+        ```     
+2. 加、减、乘、接口  
+- 头文件 Oper_api.h  ，放的是add_api,sub_api,mul_api接口声明
+    ```C
+        #pragma once
+        #include"sub.h"
+        #include<Windows.h>
+        #include <stdio.h>
+        #pragma comment(lib,"./B.lib")
+        typedef int(WINAPI* MulFunc)(int x, int y);
+
+        /*
+        **函数名： add_api
+        **参数：int ，int
+        **返回值：long long
+        **函数功能：传入两个int类型的参数，调用静态库add函数的方式实现。
+        */
+        long long add_api(int x, int y);
+
+        /*
+        **函数名： sub_api
+        **参数：int ，int
+        **返回值：int
+        **函数功能：传入两个int类型的参数，调用动态库sub函数的方式实现。
+        */
+        int sub_api(int x, int y);
+
+        /*
+        **函数名： mul_api
+        **参数：int ，int
+        **返回值：long long
+        **函数功能：传入两个int类型的参数，运行时加载动态库mul,实现乘法运算。
+        */
+        void mul_api(int x, int y);
+    ```  
+- 源文件 Oper_api.cpp  ，放的是add_api,sub_api,mul_api接口定义
+    ```C
+        #pragma once
+        #include "Opera_api.h"
+        #include"add.h"
+
+        //函数接口add_api的实现
+        long long add_api(int x, int y)
+        {
+            long long res = add(x, y);
+            printf("%d + %d = %lld\n", x, y, res);
+            return res;
+        }
+
+        //函数接口sub_api的实现
+        int sub_api(int x, int y)
+        {
+            printf("%d - %d = %d\n", x, y, x - y);
+            return x - y;
+        }
+
+        //函数接口mul_api的实现
+        long long mul_api(int x, int y)
+        {
+            HMODULE hdll = LoadLibrary("../../C/Debug/C.dll");
+            if (hdll != NULL)
+            {
+                MulFunc MUL1 = (MulFunc)GetProcAddress(hdll, (char*)(1));
+                if (MUL1 != NULL)
+                {
+                    printf("%d * %d = %lld\n", x, y, MUL1(x, y));
+                    return MUL1(x, y);
+                }
+                FreeLibrary(hdll);
+            }
+        }
+    ```   
+    3. 调用函数  main.c  ，对接口进行调用
+     ```C
+    #include "Opera_api.h"
+    #include "dev.h"
+    int main()
+    {
+        int a = 2147483647, b = 2;
+        add_api(a, b);//调用 加法接口add_api
+        sub_api(a, b);//调用 减法接口sub_api
+        mul_api(a, b);	//调用 乘法接口mul_api
+        dev(a, b);//调用 除法接口dev_api
+
+        
+        return 0;
+    }
+
+     ```  
+     4. 运行结果如下：  
+    ![](./pic/main.jpg)   
+ ## 三、单元测试  
+ - 手动创建ini文件并添加测试样例，之后在单元测试的源文件里对ini文件进行读取解析 ，完成以后获取单元测试的结果，保证代码覆盖率在80%以上。其中对ini文件的读取另封装了函数，见下面的源码。  
+1. ini文件内容  exl.ini  
+  ```
+    [TestMethod1]   #测试样例1
+    na=10           #函数第一个入数
+    nb=2            #函数第二个入参
+    nExpect=5      #两个入参相除的正确结果
+	[TestMethod2]
+	na=12
+	nb=3
+	nExpect=4
+	[TestMethod3]
+	na=90
+	nb=3
+	nExpect=30
+  ```  
+2. 读取ini文件的函数   int CalcCount(int n, char(*str)[10])
+```C
+/*
+**函数功能：获取一个ini文件里有多少个节，并通过二维指针数组将节名带出来。
+* 函数名：CalcCount（）
+* 入参：int n              --------节的个数
+*       char (*str)[10]    --------二维数组指针，10是节名的长度，可以根据需求修改
+*返回值：int               --------返回节的个数
+*/
+int CalcCount(int n, char(*str)[10])
+int CalcCount(int n, char(*str)[10])
+{
+	TCHAR   chSectionNames[2048] = { 0 };//定义一个数组，保存读取节的名字
+	char* pSectionName; //保存找到的某个节名字符串的首地址
+	int i = 0;          //i指向数组chSectionNames的某个位置，从0开始，顺序后移
+	int j = 0;      //j用来保存下一个节名字符串的首地址相对于当前i的位置偏移量
+	int k = 0;      //临时变量，用于给str数组赋值
+	int m = 0;      //临时变量，用于给str数组赋值
+	int count = 0;      //统计节的个数    
+	GetPrivateProfileSectionNames(chSectionNames, 2048, "..//ex1.ini");//获取文件中的节名，每个节名以"\0"分割，保存在chSectionNames中
+																	   //要加头文件
+	for (i = 0; i < 2048; i++, j++)//对chSectionName中保存的内容进行拆分
+	{
+		if (chSectionNames[0] == '\0')//如果第一个字符就是0，则说明ini中一个节也没有，
+		{
+			break;
+		}
+		if (chSectionNames[i] == '\0')
+		{
+			count++;
+			pSectionName = &chSectionNames[i - j]; //找到一个0，则说明从这个字符往前，减掉j个偏移量，
+												   //就是一个节名的首地址 
+			j = -1;                               //找到一个节名后，j的值要还原，以统计下一个节名地址的偏移量
+												  //赋成-1是因为节名字符串的最后一个字符0是终止符，不能作为节名
+			for (m = 0; m <= strlen(pSectionName); m++)//把找到的节名保存到str中
+			{
+				str[k][m] = *(pSectionName + m);
+			}
+			k++;//变量自加，用来保存下一个节名
+			//在获取节名的时候可以获取该节中键的值，前提是我们知道该节中有哪些键。
+			if (chSectionNames[i + 1] == 0)
+			{
+				break;      //当两个相邻的字符都是0时，则所有的节名都已找到，循环终止
+			}
+		}
+	}
+	return count;//返回节名的个数
+}
+```  
+3. 单元测试源码  UNITest1.cpp
+```C
+#include "pch.h"
+#include "CppUnitTest.h"
+#include<Windows.h>
+#include <atlstr.h>
+#include"../FourOperator/dev.h"
+#define FilePath "../ex1.ini"
+using namespace Microsoft::VisualStudio::CppUnitTestFramework;
+
+namespace UnitTest1
+{
+	TEST_CLASS(UnitTest1)
+	{
+	public:
+		int j = 0;//循环变量，用来访问ini文件中的 节
+		char str[50][10] = { 0 };//存放ini文件里  节的名字
+		int count = CalcCount(50, str);//保存ini文件里 节的个数
+		TEST_METHOD(TestMethode1)
+		{
+			int nReal;//保存运算结果
+			CString na, nb, nExpect;	//保存测试样例中的键值
+			for (j = 0; j < count; j++)//遍历读取测试样例
+			{
+				GetPrivateProfileString(str[j], "na", " ", na.GetBuffer(20), 20, FilePath);//读取第一个参数，保存在na里
+				GetPrivateProfileString(str[j], "nb", " ", nb.GetBuffer(20), 20, FilePath);//读取第二个参数，保存在nb里
+				GetPrivateProfileString(str[j], "nExpect", " ", nExpect.GetBuffer(20), 20, FilePath);//读取正确的值，保存在nExpect里
+				nReal = dev(_ttoi(na), _ttoi(nb));	//_ttoi是CString转为整型，把运算结果给nReal
+				Assert::AreEqual(nReal, _ttoi(nExpect));//对比运算结果和正确结果
+			}
+
+		}
+	};
+}
+```
+4. 附加测试结果  
+![](./pic/dev.jpg)
+