分支A完成，并提交

add/A/A.sln

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add/A/A/A.vcxproj.user

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add/A/A/add.cpp

@@ -0,0 +1,5 @@
+#include "add.h"
+long long add(int x, int y)
+{
+	return (long long)x + (long long)y;
+}

add/A/A/add.h

@@ -0,0 +1,3 @@
+#pragma once
+#include <stdio.h>
+ long long add(int x, int y);

add/A/UnitTest1/UnitTest1.cpp

@@ -0,0 +1,33 @@
+#include "pch.h"
+#include "CppUnitTest.h"
+#include<Windows.h>
+#include <atlstr.h>
+#include"../A/add.h"
+#define FilePath "..//ex1.ini"
+using namespace Microsoft::VisualStudio::CppUnitTestFramework;
+
+namespace UnitTest1
+{
+	TEST_CLASS(UnitTest1)
+	{
+	public:
+		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 = add(_ttoi(na), _ttoi(nb));	//_ttoi是CString转为整型
+				Assert::AreEqual(nReal, _ttoi(nExpect));
+			}
+
+		}
+	};
+}

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add/A/UnitTest1/pch.cpp

@@ -0,0 +1,45 @@
+// pch.cpp: 与预编译标头对应的源文件
+
+#include "pch.h"
+#include <stdio.h>
+#include<Windows.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。

add/A/UnitTest1/pch.h

@@ -0,0 +1,12 @@
+// 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
+int CalcCount(int n, char(*str)[10]);
+// 添加要在此处预编译的标头
+
+#endif //PCH_H

add/A/ex1.ini

@@ -0,0 +1,9 @@
+[TestMethod1]
+na=12
+nb=4
+nExpect=16
+[TestMethod2]
+na=3
+nb=7
+nExpect=10
+

add/add函数及其单元测试说明.md

@@ -0,0 +1,122 @@
+# add函数说明文档    
+## 一、工程说明  
+- 本工程的配置类型是一个静态库文件，目的是生成一个可被其他工程调用的静态库，静态库的函数功能是：输入两个int类型的数，返回两数之和。
+## 二、头文件 add.h ，放的是add函数的声明 
+```C  
+#pragma once
+#include <stdio.h>
+/*
+**函数名： add
+**参数：int ，int
+**返回值：long long
+**函数功能：传入两个int类型的参数，对其进行加法运算并返回一个   long long类型的数值，目的是防止两个int类型相加的和超过int的范围，所以这里返回值不用int。
+*/
+ long long add(int x, int y);
+```
+## 三、源文件 add.cpp  ，放的是add函数的定义
+```C
+#include "add.h"
+long long add(int x, int y)
+{
+	return (long long)x + (long long)y;//在运算前进行强转
+}
+```
+## 四、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=12           #函数第一个入数
+    nb=4            #函数第二个入参
+    nExpect=16      #两个入参相加的正确结果
+    [TestMethod2]
+    na=3
+    nb=7
+    nExpect=10
+  ```   
+  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"../A/add.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 = add(_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/add.jpg)