cpp: Struct Simple

 

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// DuStudent.h : 此文件包含 "DuStudent" 类。策略模式  Strategy Pattern C++ 14 // 2023年5月1日 涂聚文 Geovin Du Visual Studio 2022 edit.   #pragma once #ifndef DUSTUDENT_H #define DUSTUDENT_H   #include <cstring> #include <stdbool.h> #include <stdlib.h> #include <iostream> #include <malloc.h> #include <cmath> #include <iostream> #include <sstream> #include <vector> #include <string> #include <string.h> #include <list>     using namespace std;   namespace DuStructSimple {       /// <summary>     /// 学生     /// </summary>     struct duStudent     {         /// <summary>         /// ID         /// </summary>         //int id;         /// <summary>         /// 學號  主键         /// </summary>         int number;         /// <summary>         /// 姓名         /// </summary>         string name;         /// <summary>         /// 总学分數         /// </summary>         float score;         /// <summary>         ///         /// </summary>        // duStudent() = default;         /// <summary>         ///         /// </summary>         /// <param name="name"></param>         /// <param name="num"></param>         /// <param name="scor"></param>         //duStudent(int snum, string sname, float scor) :number(snum), name(sname), score(scor){}         /// <summary>         ///         /// </summary>         /// <param name="stuObj"></param>         /// <returns></returns>         bool operator<(const duStudent& stuObj) const         {             return score < stuObj.score;         }         };     /// <summary>     /// 老师     /// </summary>     struct  Teacher     {           /// <summary>         /// ID  主键         /// </summary>         int id;         /// <summary>         /// 老師姓名         /// </summary>         string  name;           /// <summary>         /// 學生         /// </summary>         //dustudent tstu;     };     /// <summary>     /// 课程     /// </summary>     struct Course     {         /// <summary>         /// ID 主键         /// </summary>         int id;         /// <summary>         /// 课程名稱         /// </summary>         string name;           /// <summary>         /// 课程老師         /// </summary>         //teacher teach;         /// <summary>         /// 学生所报此课程         /// </summary>         //dustudent costu;     };         /// <summary>     /// 课程授课老师     /// </summary>     struct  CreditCourse     {         /// <summary>         /// 课程ID 外键         /// </summary>         int courseId;         /// <summary>         /// 课程老师外健         /// </summary>         int teacherId;       };       /// <summary>     /// 班级     /// </summary>     struct Class     {         /// <summary>         /// 主键         /// </summary>         int id;         /// <summary>         /// 班级名称         /// </summary>         string  name;         /// <summary>         /// 班主任老师 ID 外键 其实这个还可以另外优化，组建另一个对象         /// </summary>         //int teachId;           /// <summary>         /// 班主任老师         /// </summary>         //teacher teach;         /// <summary>         /// 學生         /// </summary>         duStudent stu;         /// <summary>         ///         /// </summary>         list<duStudent> stus;         /// <summary>         ///         /// </summary>         vector<duStudent> listu;         /// <summary>         ///         /// </summary>         Class* next;         //只能指同类型的指针 不然会"爆"  //为什么next要放这里  因为next所指的东西在Class里面     };       /// <summary>     /// 班主任表     /// </summary>     struct ClassHead     {         /// <summary>         ///         /// </summary>         int classId;         /// <summary>         ///         /// </summary>         int teachId;     };         /// <summary>     /// 班级学生表     /// </summary>     struct ClassMember     {         /// <summary>         ///班级  外键         /// </summary>         int classId;           /// <summary>         /// 学生ID  外键         /// </summary>         int clstuId;                 };         /// <summary>     /// 学生成绩单     /// </summary>     struct StudentReport     {           /// <summary>         /// 学生编号 外键         /// </summary>         int stuNumber;         /// <summary>         /// 课程编号 外键         /// </summary>         int courseId;           /// <summary>         /// 课程成绩         /// </summary>         float courseScore;         /// <summary>         /// 学生         /// </summary>         //dustudent rstu;           /// <summary>         /// 课程         /// </summary>         //course rcourse;     };              } #endif     // ManageStudent.h: 此文件包含 "ManageStudent" 类。当作视图式结构体 策略模式  Strategy Pattern C++ 14 // 2023年5月1日 涂聚文 Geovin Du Visual Studio 2022 edit.   #pragma once #ifndef MANAGESTUDENT_H #define MANAGESTUDENT_H   #include<cstring> #include<stdbool.h> #include<stdlib.h> #include<iostream> #include<malloc.h> #include<cmath> #include <iostream> #include <sstream> #include <vector> #include <string> #include <string.h> #include <algorithm> #include <array> #include <functional> #include <list>     using namespace std;   namespace DuStructSimple {       /// <summary>     /// 班主任老师表 ClassHeadTeacher     /// 班级ID ，班级名称，班主任老师名称     /// </summary>     struct ClassHeadTeacher     {           /// <summary>         ///         /// </summary>         int teacherId;           /// <summary>         ///         /// </summary>         string className;           /// <summary>         ///         /// </summary>         string teacherName;           bool operator<(const ClassHeadTeacher& stuObj) const         {             return teacherId < stuObj.teacherId;         }                   };     /// <summary>     /// 授老师课表程     /// 老师名称，课程名称，     /// </summary>     struct CreditCourseTeacher     {         /// <summary>         ///         /// </summary>         int teacherId;         /// <summary>         ///         /// </summary>         int courceId;         /// <summary>         ///         /// </summary>         string teacherName;         /// <summary>         ///         /// </summary>         string CourceName;           bool operator<(const CreditCourseTeacher& stuObj) const         {             return teacherId < stuObj.teacherId;         }       };     /// <summary>     /// 授课老师学生成绩表     /// 学生ID，学生姓名，班级名称，相关课程名称（分数）,老师名称     /// </summary>     struct CreditTeacherStudent     {           /// <summary>         /// 学生ID         /// </summary>         int studentId;         /// <summary>         /// 学生姓名         /// </summary>         string studentName;         /// <summary>         /// 班级名称         /// </summary>         string className;         /// <summary>         /// 课程ID         /// </summary>         int courceId;         /// <summary>         /// 相关课程名称         /// </summary>         string CourceName;         /// <summary>         /// 相关课程分数         /// </summary>         float CourceScroe;         /// <summary>         /// 老师名称         /// </summary>         string teacherName;             bool operator<(const CreditTeacherStudent& stuObj) const         {             return CourceScroe < stuObj.CourceScroe;         }       };     /// <summary>     /// 学生成绩单 详情分数和总分数课目 老师课表     /// 学生ID,学生姓名，班级名称，语文（分数），数学，英语，总分数     /// </summary>     struct StudentScore     {         /// <summary>         /// 学生ID         /// </summary>         int studentId;         /// <summary>         /// 学生姓名         /// </summary>         string studentName;         /// <summary>         /// 班级名称         /// </summary>         string className;         /// <summary>         /// 语文         /// </summary>         float Chinese;         /// <summary>         /// 语文授老师         /// </summary>         string ChineseTeacher;         /// <summary>         /// 数学         /// </summary>         float math;         /// <summary>         /// 数学授老师         /// </summary>         string mathTeacher;         /// <summary>         /// 英语         /// </summary>         float English;         /// <summary>         /// 英语授课老师         /// </summary>         string EnglishTeacher;         /// <summary>         /// 总分数         /// </summary>         float totalScore;           int rank=1;           bool operator<(const StudentScore& stuObj) const         {             return totalScore < stuObj.totalScore;         }       };       } #endif

　　

 

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// GeovinDu.h : 此文件包含 "GeovinDu" 类。策略模式  Strategy Pattern C++ 14 // 2023年5月1日 涂聚文 Geovin Du Visual Studio 2022 edit.   #pragma once #ifndef GEOVINDU_H #define GEOVINDU_H       #include <iostream> #include <sstream> #include <vector> #include "DuStudent.h" #include "ManageStudent.h"     using namespace std;   namespace DuStructSimple {             /// <summary>     ///     /// </summary>     class GeovinDu     {       private:         public:         /// <summary>         ///         /// </summary>         void displayStudent();         /// <summary>         ///         /// </summary>         void dispalyStructDemo();         /// <summary>         ///         /// </summary>         void dsipalyFuntion();         /// <summary>         ///         /// </summary>         void dipslayStructCustomer();         /// <summary>         /// 统计分数         /// </summary>         /// <param name="stuArry"></param>         /// <param name="reportArry"></param>         vector<duStudent> getSumScore(vector<duStudent> stuArry, vector<StudentReport> reportArry);         /// <summary>         ///         /// </summary>         /// <param name="a"></param>         /// <param name="b"></param>         /// <returns></returns>         //bool compareTwoStudents(StudentScore a, StudentScore b);         /// <summary>         ///         /// </summary>         /// <param name="a"></param>         /// <param name="n"></param>         //void computeRanks(StudentScore a[], int n);         /// <summary>         ///         /// </summary>         /// <param name="a"></param>         /// <param name="n"></param>         void computeRanksVector(vector<StudentScore> a, int n);         /// <summary>         /// 班主任老师表         /// </summary>         /// <param name="calssArry"></param>         /// <param name="headArry"></param>         /// <param name="teachArry"></param>         /// <returns></returns>         vector<ClassHeadTeacher> getClassHeadTeacher(vector<Class> calssArry, vector<ClassHead> headArry, vector<Teacher> teachArry);         /// <summary>         /// 授课老师表         /// </summary>         /// <param name="courseArry"></param>         /// <param name="creditArry"></param>         /// <param name="teachArry"></param>         /// <returns></returns>         vector<CreditCourseTeacher> getCreditCourseTeacher(vector<Course> courseArry, vector<CreditCourse> creditArry, vector<Teacher> teachArry);             /// <summary>         /// 授课老师学生成绩表         /// </summary>         /// <param name="creditArry"></param>         /// <param name="stuArry"></param>         /// <param name="reportArry"></param>         /// <param name="calssArry"></param>         /// <param name="memberArry"></param>         /// <param name="courseName"></param>         /// <returns></returns>         vector<CreditTeacherStudent> getCreditTeacherStudent(vector<CreditCourseTeacher> creditArry, vector<duStudent> stuArry, vector<StudentReport> reportArry, vector<Class> calssArry, vector<ClassMember> memberArry, string courseName);             /// <summary>         /// 学生成绩单 详情分数和总分数课目         /// </summary>         /// <param name="stuArry"></param>         /// <param name="reportArry"></param>         /// <param name="calssArry"></param>         /// <param name="memberArry"></param>         /// <param name="courseArry"></param>         /// <param name="creditArry"></param>         /// <returns></returns>         vector<StudentScore> getStudentScore(vector<duStudent> stuArry, vector<StudentReport> reportArry, vector<Class> calssArry, vector<ClassMember> memberArry, vector<CreditCourseTeacher> creditArry);           /// <summary>         ///         /// </summary>         /// <param name="stuid"></param>         /// <param name="courseid"></param>         /// <param name="reportArry"></param>         /// <returns></returns>         float  getScore(int stuid, int courseid, vector<StudentReport> reportArry);           /// <summary>         /// 得到课程老师         /// </summary>         /// <param name="courseid"></param>         /// <param name="creditArry"></param>         /// <returns></returns>         string getTeacher(int courseid, vector<CreditCourseTeacher> creditArry);         /// <summary>         ///         /// </summary>         /// <returns></returns>         vector<duStudent> ReadFileStu();         /// <summary>         ///         /// </summary>         /// <returns></returns>         vector<Class> ReadFileClass();           /// <summary>         /// 老师         /// </summary>         /// <returns></returns>         vector<Teacher> ReadFileTeach();               /// <summary>         /// 课程         /// </summary>         /// <returns></returns>         vector<Course> ReadFileCourse();           /// <summary>         /// 老师课程表         /// </summary>         /// <returns></returns>         vector<CreditCourse> ReadFileCreditCourse();           /// <summary>         /// 班主任         /// </summary>         /// <returns></returns>         vector<ClassHead> ReadFileClassHead();           /// <summary>         /// 班级学生表         /// </summary>         /// <returns></returns>         vector<ClassMember> ReadFileClassMember();           /// <summary>          /// 学生成绩表          /// </summary>          /// <returns></returns>         vector<StudentReport> ReadFileStudentReport();         };   } #endif   // GeovinDu.h : 此文件包含 "GeovinDu" 类。策略模式  Strategy Pattern C++ 14 // 2023年5月1日 涂聚文 Geovin Du Visual Studio 2022 edit. /**  * 一 函数 1.函数免的命名规范-标识符 2.函数调用-函数名（） 3.函数传参-形参 实参 传参方式：值传递：形参无法修饰实参           指针传递：形参可以修饰实参 4.函数的样式：void( )/int （）/void（**）/int (**) 5.声明可以多次，定义只能一次 6.头文件.h 。Cpp 二指针 1.指针编号 2.地址编号计算 3.变量地址 &变量名 4.指针赋值：两种方式 变量的编号/指针 int * p=& 5.指针使用 *p p &p区别。 6.Cost 指针 const int *p 7.Void * 8.指针数组 *p=arr 第一个元素。 三结构体   关键字struct 结构体名 变量 定义 struct 结构体名 { 列表 }； 创建结构体2 struct 结构体名 { 列表 }创建结构体；   结构体名 变量   变量.列表  *  * .  */     #include "GeovinDu.h"     #include <iostream> #include <fstream>//文件操作 #include <sstream>//int转string #include <iomanip>//cout格式化输出 setw()   #include <iomanip> #include <stdlib.h> #include <vector> #include <algorithm> #include <array> #include <functional> #include <stdlib.h> #include "student.h" #include "node.h" #include "list.h" #include "DuOperation.h" #include "Dufunction.h"   using namespace std;     #define stuPath "stuArrys.txt" #define claPath "claArry.txt" #define teachPath "teachArry.txt" #define coutPath "couArry.txt" #define crePath "creArry.txt" #define headPath "headArry.txt" #define memberPath "memberAryy.txt" #define reportPath "reportArrys.txt"     namespace DuStructSimple {                 /// <summary>     ///     /// </summary>     void GeovinDu::dipslayStructCustomer()     {           //学生         //duStudent stuArry[5] = { {100,"小李",0},{101,"王二",0},{102,"赵三",0},{103,"张五",0},{104,"何六",0}};         //stu.name = "小李";         //stu.number = 100;         //vector<duStudent> stuArrys= { {100,"小李",0},{101,"王二",0},{102,"赵三",0},{103,"张五",0},{104,"何六",0} };         vector<duStudent> stuArrys = ReadFileStu();             //班级         //Class claArry[2] = { {1,"一年级一班"},{2,"一年级二班"}};         //vector<Class> claArry = { {1,"一年级一班"},{2,"一年级二班"} };           vector<Class> claArry = ReadFileClass();         //cla.id = 1;         //cla.name = "一年级一班";           //老师         //Teacher teachArry[3]={ {1,"吕老师"},{2,"吴老师"},{3,"林老师"}};         //vector<Teacher> teachArry = { {1,"吕老师"},{2,"吴老师"},{3,"林老师"} };           vector<Teacher> teachArry = ReadFileTeach();           //teach.id = 1;         //teach.name = "李老师";           //课程         //Course couArry[3]= { {1,"语文"},{2,"数学"},{3,"英语"} };         //vector<Course> couArry = { {1,"语文"},{2,"数学"},{3,"英语"} };           vector<Course> couArry = ReadFileCourse();           //cou.id = 1;         //cou.name = "语文";           //授课表（三个老师）         //CreditCourse creArry[3] = { {1,2},{2,1},{3,3} };            //vector<CreditCourse> creArry = { {1,2},{2,1},{3,3} };           vector<CreditCourse> creArry = ReadFileCreditCourse();           //班主任，这只有一个班         //ClassHead headArry[2] = { { 1,3 },{2,5} };        // vector<ClassHead> headArry = { { 1,3 },{2,5} };         vector<ClassHead> headArry = ReadFileClassHead();           //head->classId = 1;         //head->teachId = 3;           //学生班级表         //ClassMember memberAryy[5] = { {1,100},{1,101},{1,102},{1,103},{1,104} };           //vector<ClassMember> memberAryy = { {1,100},{1,101},{1,102},{1,103},{1,104} };         vector<ClassMember> memberAryy = ReadFileClassMember();             //学生成绩表         //StudentReport reportArry[15] = { {100,1,50},{100,2,80},{100,3,95},{101,1,78},{101,2,99},{101,3,100} ,{102,1,55},{102,2,60},{102,3,78},{103,1,92},{103,2,90},{103,3,99},{104,1,78},{104,2,65},{104,3,50} };                    // vector<StudentReport> reportArrys= { {100,1,50},{100,2,80},{100,3,95},{101,1,78},{101,2,99},{101,3,100} ,{102,1,55},{102,2,60},{102,3,78},{103,1,92},{103,2,90},{103,3,99},{104,1,78},{104,2,65},{104,3,50} };                            vector<StudentReport> reportArrys = ReadFileStudentReport();               //for (auto sr : reportArry)         //{         //    reportArrys.push_back(sr);           //}         vector<duStudent> newstu=getSumScore(stuArrys, reportArrys);         //排序         sort(newstu.begin(), newstu.end());         cout << "\t学号" << "\t姓名" << "\t总分数" << endl;         for (auto stu : newstu)         {             cout<<"\t"<<stu.number << "\t" << stu.name << "\t" << stu.score << endl;         }         vector<ClassHeadTeacher> newhead = getClassHeadTeacher(claArry, headArry, teachArry);          cout << "\t班级名称" << "\t老师ID" << "\t班主任姓名" << endl;         for (auto head : newhead)         {             cout << "\t" << head.className << "\t" << head.teacherId << "\t" << head.teacherName << endl;         }           vector<CreditCourseTeacher> newcourseteach = getCreditCourseTeacher(couArry, creArry, teachArry);         cout << "\t课程名称" << "\t老师Id" << "\t老师姓名" << endl;         for (auto cousreteach : newcourseteach)         {             cout << "\t" << cousreteach.CourceName << "\t\t" << cousreteach.teacherId << "\t" << cousreteach.teacherName << endl;         }           string courcename = "吕老师";//语文         vector<CreditTeacherStudent> newcoursestu = getCreditTeacherStudent(newcourseteach, stuArrys, reportArrys, claArry, memberAryy, courcename);         sort(newcoursestu.begin(), newcoursestu.end());         cout << "\t年级班级" << "\t课程名称" << "\t学分" << "\t学生姓名" << "\t学号" << "\t老师" << endl;         for (auto newstu : newcoursestu)         {             cout << "\t" << newstu.className << "\t" << newstu.CourceName << "   \t\t"<< newstu.CourceScroe << "\t" << newstu.studentName << "\t\t" << newstu.studentId << "\t" << newstu.teacherName << endl;         }           courcename = "吴老师";//数学         newcoursestu = getCreditTeacherStudent(newcourseteach, stuArrys, reportArrys, claArry, memberAryy, courcename);         sort(newcoursestu.begin(), newcoursestu.end());         cout << "\t年级班级" << "\t课程名称" << "\t学分" << "\t学生姓名" << "\t学号" << "\t老师" << endl;         for (auto newstu : newcoursestu)         {             cout << "\t" << newstu.className << "\t" << newstu.CourceName << "   \t\t" << newstu.CourceScroe << "\t" << newstu.studentName << "\t\t" << newstu.studentId << "\t" << newstu.teacherName << endl;         }           courcename = "林老师"; //英语         newcoursestu = getCreditTeacherStudent(newcourseteach, stuArrys, reportArrys, claArry, memberAryy, courcename);         sort(newcoursestu.begin(), newcoursestu.end());         cout << "\t年级班级" << "\t课程名称" << "\t学分" << "\t学生姓名" << "\t学号" << "\t老师" << endl;         for (auto newstu : newcoursestu)         {             cout << "\t" << newstu.className << "\t" << newstu.CourceName << "   \t\t" << newstu.CourceScroe << "\t" << newstu.studentName << "\t\t" << newstu.studentId << "\t" << newstu.teacherName << endl;         }           //         vector<StudentScore> stuscore = getStudentScore(stuArrys, reportArrys, claArry, memberAryy, newcourseteach);         //computeRanksVector(stuscore, 5);         sort(stuscore.begin(), stuscore.end());           cout << "\t学生编号" << "\t学生姓名" << "\t年级班号" << "\t语文分数" << "\t数学分数" << "\t英语分数" << "\t总分数" << "\t 语文老师" << "\t 数学老师" << "\t 英语老师" << "" << endl;         for (auto dustu : stuscore)         {             cout << "\t" << dustu.studentId << "     \t" << dustu.studentName << "       \t" << dustu.className << " \t" << dustu.Chinese << "     \t         " << dustu.math << "    \t        " << dustu.English << "  \t        " << dustu.totalScore << "  \t " << dustu.ChineseTeacher<<"  \t  "<<dustu.mathTeacher<<"   \t "<<dustu.EnglishTeacher << endl;         }       }     /// <summary>     /// 学生     /// </summary>     /// <returns></returns>     vector<duStudent> GeovinDu::ReadFileStu()     {         vector<duStudent> stus;         ifstream fin;         int beforeId = -1;//上一个id         int id=-1;         /// <summary>         /// 姓名         /// </summary>         string name;         /// <summary>         /// 总学分數         /// </summary>         float score;         fin.open(stuPath, ios_base::in);//打开文件         //if (fin == NULL)//文件不存在，直接返回         //{         //    return;         //}         if (!fin) {             cerr << "Error opening geovindu.txt for reading\n";             exit(1);         }         while (!fin.eof())//循环读取直到文件末尾         {             fin >> id >> name >> score;             if (id > 0 && id != beforeId)//因为空格的原因 读取读后一个数据两次,这里使用beforeId来避免重复添加             {                 duStudent dstu;                 dstu.number=id;                 dstu.name=name;                 dstu.score = score;                                 stus.push_back(dstu);//添加             }             beforeId = id;//记录上一次id         }           fin.close();//关闭文件流         return stus;       }       /// <summary>     /// 班级     /// </summary>     /// <returns></returns>     vector<Class> GeovinDu::ReadFileClass()     {         vector<Class>  clas;         ifstream fin;         int beforeId = -1;//上一个id         int id = -1;         /// <summary>         /// 名         /// </summary>         string name;            fin.open(claPath, ios_base::in);//打开文件         //if (fin == NULL)//文件不存在，直接返回         //{         //    return;         //}         if (!fin) {             cerr << "Error opening geovindu.txt for reading\n";             exit(1);         }         while (!fin.eof())//循环读取直到文件末尾         {             fin >> id >> name;             if (id > 0 && id != beforeId)//因为空格的原因 读取读后一个数据两次,这里使用beforeId来避免重复添加             {                 Class cls;                 cls.id = id;                 cls.name = name;                     clas.push_back(cls);//添加             }             beforeId = id;//记录上一次id         }           fin.close();//关闭文件流         return clas;       }         /// <summary>     /// 老师     /// </summary>     /// <returns></returns>     vector<Teacher> GeovinDu::ReadFileTeach()     {         vector<Teacher>  teachs;         ifstream fin;         int beforeId = -1;//上一个id         int id = -1;         /// <summary>         /// 名         /// </summary>         string name;           fin.open(teachPath, ios_base::in);//打开文件         //if (fin == NULL)//文件不存在，直接返回         //{         //    return;         //}         if (!fin) {             cerr << "Error opening geovindu.txt for reading\n";             exit(1);         }         while (!fin.eof())//循环读取直到文件末尾         {             fin >> id >> name;             if (id > 0 && id != beforeId)//因为空格的原因 读取读后一个数据两次,这里使用beforeId来避免重复添加             {                 Teacher tea;                 tea.id = id;                 tea.name = name;                 teachs.push_back(tea);//添加             }             beforeId = id;//记录上一次id         }           fin.close();//关闭文件流         return teachs;       }       /// <summary>     /// 课程     /// </summary>     /// <returns></returns>     vector<Course> GeovinDu::ReadFileCourse()     {         vector<Course>  cours;         ifstream fin;         int beforeId = -1;//上一个id         int id = -1;         /// <summary>         /// 名         /// </summary>         string name;           fin.open(coutPath, ios_base::in);//打开文件         //if (fin == NULL)//文件不存在，直接返回         //{         //    return;         //}         if (!fin) {             cerr << "Error opening geovindu.txt for reading\n";             exit(1);         }         while (!fin.eof())//循环读取直到文件末尾         {             fin >> id >> name;             if (id > 0 && id != beforeId)//因为空格的原因 读取读后一个数据两次,这里使用beforeId来避免重复添加             {                 Course cou;                 cou.id = id;                 cou.name = name;                 cours.push_back(cou);//添加             }             beforeId = id;//记录上一次id         }           fin.close();//关闭文件流         return cours;       }     /// <summary>     /// 老师课程表     /// </summary>     /// <returns></returns>     vector<CreditCourse> GeovinDu::ReadFileCreditCourse()     {         vector<CreditCourse>  creeditcours;         ifstream fin;         int beforeId = -1;//上一个id         int id = -1;           int teaid = -1;         /// <summary>         /// 名         /// </summary>         string name;           fin.open(crePath, ios_base::in);//打开文件         //if (fin == NULL)//文件不存在，直接返回         //{         //    return;         //}         if (!fin) {             cerr << "Error opening geovindu.txt for reading\n";             exit(1);         }         while (!fin.eof())//循环读取直到文件末尾         {             fin >> id >> teaid;             if (id > 0 && id != beforeId)//因为空格的原因 读取读后一个数据两次,这里使用beforeId来避免重复添加             {                 CreditCourse credit;                 credit.courseId = id;                 credit.teacherId = teaid;                 creeditcours.push_back(credit);//添加             }             //beforeId = id;//记录上一次id         }           fin.close();//关闭文件流         return creeditcours;       }       /// <summary>     /// 班主任     /// </summary>     /// <returns></returns>     vector<ClassHead> GeovinDu::ReadFileClassHead()     {         vector<ClassHead>  heads;         ifstream fin;         int beforeId = -1;//上一个id         int id = -1;         int teaid = -1;         /// <summary>         /// 名         /// </summary>         string name;           fin.open(headPath, ios_base::in);//打开文件         //if (fin == NULL)//文件不存在，直接返回         //{         //    return;         //}         if (!fin) {             cerr << "Error opening geovindu.txt for reading\n";             exit(1);         }         while (!fin.eof())//循环读取直到文件末尾         {             fin >> id >> teaid;             if (id > 0 && id != beforeId)//因为空格的原因 读取读后一个数据两次,这里使用beforeId来避免重复添加             {                 ClassHead head;                 head.classId = id;                 head.teachId = teaid;                 heads.push_back(head);//添加             }             beforeId = id;//记录上一次id         }           fin.close();//关闭文件流         return heads;       }       /// <summary>     /// 班级学生表     /// </summary>     /// <returns></returns>     vector<ClassMember> GeovinDu::ReadFileClassMember()     {         vector<ClassMember>  members;         ifstream fin;         int beforeId = -1;//上一个id         int id = -1;         int stuid = -1;         /// <summary>         /// 名         /// </summary>         string name;           fin.open(memberPath, ios_base::in);//打开文件         //if (fin == NULL)//文件不存在，直接返回         //{         //    return;         //}         if (!fin) {             cerr << "Error opening geovindu.txt for reading\n";             exit(1);         }         while (!fin.eof())//循环读取直到文件末尾         {             fin >> id >> stuid;             if (id > 0 && id != beforeId)//因为空格的原因 读取读后一个数据两次,这里使用beforeId来避免重复添加             {                 ClassMember member;                 member.classId = id;                 member.clstuId = stuid;                 members.push_back(member);//添加             }            // beforeId = id;//记录上一次id         }           fin.close();//关闭文件流         return members;       }       /// <summary>     /// 学生成绩表     /// </summary>     /// <returns></returns>     vector<StudentReport> GeovinDu::ReadFileStudentReport()     {         vector<StudentReport>  reports;         ifstream fin;         int beforeId = -1;//上一个id         int id = -1;         int couseid = -1;         int score = 0;         /// <summary>         /// 名         /// </summary>         string name;           fin.open(reportPath, ios_base::in);//打开文件         //if (fin == NULL)//文件不存在，直接返回         //{         //    return;         //}         if (!fin) {             cerr << "Error opening geovindu.txt for reading\n";             exit(1);         }         while (!fin.eof())//循环读取直到文件末尾         {             fin >> id >> couseid >> score;             if (id > 0 && id != beforeId)//因为空格的原因 读取读后一个数据两次,这里使用beforeId来避免重复添加             {                 StudentReport report;                 report.stuNumber = id;                 report.courseId = couseid;                 report.courseScore = score;                               reports.push_back(report);//添加             }            // beforeId = id;//记录上一次id         }           fin.close();//关闭文件流         return reports;       }     /// <summary>     /// 统计总分数     /// </summary>     /// <param name="stuArry"></param>     /// <param name="reportArry"></param>     vector<duStudent> GeovinDu::getSumScore(vector<duStudent> stuArry, vector<StudentReport> reportArry)     {         vector<duStudent> newstu;         //dustudent stu = stuArry;         //StudentReport report = reportArry;              //int len = sizeof(reportArry)/sizeof(reportArry[0]);         //for (int i=0;i<len;i++)         //{         //    int slen = sizeof(stuArry)/ sizeof(stuArry[0]);           //    for (int j=0;j<slen;j++)         //    {         //        if (reportArry[i].stuNumber == stuArry[j].number)         //        {         //            stuArry[j].score = stuArry[j].score + reportArry[i].courseScore;         //        }           //    }         //}         for (auto stu : stuArry)         {               for (auto report : reportArry)             {                 if (report.stuNumber == stu.number)                 {                     stu.score = stu.score + report.courseScore;                   }               }                          newstu.push_back(stu);         }           return newstu;     }     /// <summary>     /// 班主任老师表     /// </summary>     /// <param name="calssArry"></param>     /// <param name="headArry"></param>     /// <param name="teachArry"></param>     /// <returns></returns>     vector<ClassHeadTeacher> GeovinDu::getClassHeadTeacher(vector<Class> calssArry,vector<ClassHead> headArry,vector<Teacher> teachArry)     {         vector<ClassHeadTeacher> headteacher;         //int headid = 0;         for (auto hea : headArry)         {            // headid = hea.classId;             for (auto clas :calssArry)             {                   for (auto teac : teachArry)                 {                     if (hea.classId == clas.id && teac.id == hea.teachId)                     {                         ClassHeadTeacher h;                         h.className = clas.name;                         h.teacherId = teac.id;                         h.teacherName = teac.name;                         headteacher.push_back(h);                     }                                             }             }         }         return headteacher;     }     /// <summary>     /// 授课老师表     /// </summary>     /// <param name="courseArry"></param>     /// <param name="creditArry"></param>     /// <param name="teachArry"></param>     /// <returns></returns>     vector<CreditCourseTeacher> GeovinDu::getCreditCourseTeacher(vector<Course> courseArry,vector<CreditCourse> creditArry,vector<Teacher> teachArry)     {         vector<CreditCourseTeacher> newteacher;         for (auto credit : creditArry)         {             for (auto course : courseArry)             {                   for (auto teach : teachArry)                 {                     if (credit.courseId == course.id && credit.teacherId == teach.id)                     {                         CreditCourseTeacher tea;                         tea.courceId = course.id;                         tea.CourceName = course.name;                         tea.teacherId = teach.id;                         tea.teacherName = teach.name;                         newteacher.push_back(tea);                     }                                                     }             }             }           return newteacher;     }     /// <summary>     /// 授课老师学生成绩表     /// </summary>     /// <param name="creditArry"></param>     /// <param name="stuArry"></param>     /// <param name="reportArry"></param>     /// <param name="calssArry"></param>     /// <param name="memberArry"></param>     /// <param name="courseName"></param>     /// <returns></returns>     vector<CreditTeacherStudent> GeovinDu::getCreditTeacherStudent(vector<CreditCourseTeacher> creditArry, vector<duStudent> stuArry, vector<StudentReport> reportArry, vector<Class> calssArry, vector<ClassMember> memberArry,string courseName)     {         vector<CreditTeacherStudent> newstus;         for (auto stu : stuArry)         {               for (auto report : reportArry)             {                   for (auto member : memberArry)                 {                     for (auto cla : calssArry)                     {                         for (auto coursteach : creditArry)                         {                               if (stu.number == report.stuNumber && member.clstuId == stu.number && member.classId == cla.id && coursteach.courceId == report.courseId && (coursteach.CourceName==courseName|| coursteach.teacherName==courseName))                             {                                 CreditTeacherStudent stude;                                 stude.className = cla.name;                                 stude.studentId = stu.number;                                 stude.studentName = stu.name;                                 stude.teacherName = coursteach.teacherName;                                 stude.CourceName = coursteach.CourceName;                                 stude.CourceScroe = report.courseScore;                                 stude.courceId = report.courseId;                                 newstus.push_back(stude);                             }                           }                                                 }                 }               }           }           return newstus;     }         /// <summary>     /// 学生成绩单 详情分数和总分数课目     /// </summary>     /// <param name="stuArry"></param>     /// <param name="reportArry"></param>     /// <param name="calssArry"></param>     /// <param name="memberArry"></param>     /// <param name="courseArry"></param>     /// <param name="creditArry"></param>     /// <returns></returns>     vector<StudentScore> GeovinDu::getStudentScore(vector<duStudent> stuArry, vector<StudentReport> reportArry,vector<Class> calssArry, vector<ClassMember> memberArry,vector<CreditCourseTeacher> creditArry)     {         vector<StudentScore> scores;         for (auto stu : stuArry)         {               for (auto member : memberArry)             {                 for (auto cla : calssArry)                 {                                                                     if (member.clstuId == stu.number && member.classId == cla.id)                          {                              StudentScore stude;                              stude.className = cla.name;                              stude.studentId = stu.number;                              stude.studentName = stu.name;                              stude.Chinese = getScore(stu.number, 1, reportArry);                              stude.math = getScore(stu.number, 2, reportArry);                              stude.English = getScore(stu.number, 3, reportArry);                              stude.totalScore = stude.Chinese + stude.math + stude.English;                              stude.ChineseTeacher = getTeacher(1, creditArry);                              stude.EnglishTeacher = getTeacher(3, creditArry);                              stude.mathTeacher = getTeacher(2, creditArry);                             scores.push_back(stude);                         }                                       }               }         }         return scores;     }     /// <summary>     ///     /// </summary>     /// <param name="stuid"></param>     /// <param name="courseid"></param>     /// <param name="reportArry"></param>     /// <returns></returns>     float  GeovinDu::getScore(int stuid, int courseid,vector<StudentReport> reportArry)     {         float scroe;         for (auto report : reportArry)         {             if (report.courseId == courseid && report.stuNumber == stuid)             {                 scroe = report.courseScore;             }         }         return scroe;     }     /// <summary>     /// 得到课程老师     /// </summary>     /// <param name="courseid"></param>     /// <param name="creditArry"></param>     /// <returns></returns>     string GeovinDu::getTeacher(int courseid, vector<CreditCourseTeacher> creditArry)     {         string teacher;           for (auto teach : creditArry)         {             if (teach.courceId == courseid)             {                 teacher = teach.teacherName;             }         }           return teacher;     }       /// <summary>     /// Function for comparing two students according to given rules     /// </summary>     /// <param name="a"></param>     /// <param name="b"></param>     /// <returns></returns>     bool compareTwoStudents(StudentScore a, StudentScore b)     {         // If total marks are not same then         // returns true for higher total         if (a.totalScore != b.totalScore)             return a.totalScore > b.totalScore;           // If marks in Maths are same then         // returns true for higher marks         if (a.math != b.math)             return a.math > b.math;           if (a.Chinese != b.Chinese)             return a.Chinese > b.Chinese;           return (a.English > b.English);     }       /// <summary>     /// Fills total marks and ranks of all Students     /// </summary>     /// <param name="a"></param>     /// <param name="n"></param>     //void computeRanks(StudentScore a[], int n)     //{     //    // To calculate total marks for all Students     //    for (int i = 0; i < n; i++)     //        a[i].totalScore = a[i].math + a[i].Chinese + a[i].English;       //    // Sort structure array using user defined     //    // function compareTwoStudents()     //    sort(a, a + n, compareTwoStudents);       //    // Assigning ranks after sorting     //    for (int i = 0; i < n; i++)     //        a[i].rank = i + 1;     //}     /// <summary>     ///     /// </summary>     /// <param name="a"></param>     /// <param name="n"></param>     void GeovinDu::computeRanksVector(vector<StudentScore> a, int n)     {         // To calculate total marks for all Students         //for (int i = 0; i < n; i++)             //a[i].totalScore = a[i].math + a[i].Chinese + a[i].English;         for (auto stu : a)         {             stu.totalScore = stu.Chinese + stu.math + stu.English;         }           // Sort structure array using user defined         // function compareTwoStudents()         //sort(a, a + n, compareTwoStudents);         sort(a.begin(), a.end(), compareTwoStudents);         // Assigning ranks after sorting         for (int i = 0; i < n; i++)             a[i].rank = i + 1;     } }

　　

调用：

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// ConsoleStructSimpleApp.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。 //   #include <iostream> #include <fstream>//文件操作 #include <sstream>//int转string #include <iomanip>//cout格式化输出 setw() #include <stdlib.h> #include "GeovinDu.h"     using namespace std; using namespace DuStructSimple;     int main() {    // std::cout << "Hello World!涂聚文 Geovin Du\n";       GeovinDu geovin;         //geovin.displayStudent();     // 无用     //geovin.dispalyStructDemo();     //     //     //geovin.dsipalyFuntion();       geovin.dipslayStructCustomer();       system("pause");     return 0;   }   // 运行程序: Ctrl + F5 或调试 >“开始执行(不调试)”菜单 // 调试程序: F5 或调试 >“开始调试”菜单   // 入门使用技巧: //   1. 使用解决方案资源管理器窗口添加/管理文件 //   2. 使用团队资源管理器窗口连接到源代码管理 //   3. 使用输出窗口查看生成输出和其他消息 //   4. 使用错误列表窗口查看错误 //   5. 转到“项目”>“添加新项”以创建新的代码文件，或转到“项目”>“添加现有项”以将现有代码文件添加到项目 //   6. 将来，若要再次打开此项目，请转到“文件”>“打开”>“项目”并选择 .sln 文件

　　

输出：

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学号    姓名    总分数         101     王二    187         102     赵三    193         104     何六    193         100     小李    225         103     张五    281         班级名称        老师ID  班主任姓名         一年级一班      3       林老师         课程名称        老师Id  老师姓名         语文            2       吴老师         数学            1       吕老师         英语            3       林老师         年级班级        课程名称        学分    学生姓名        学号    老师         一年级一班      数学            60      赵三            102     吕老师         一年级一班      数学            65      何六            104     吕老师         一年级一班      数学            80      小李            100     吕老师         一年级一班      数学            90      张五            103     吕老师         一年级一班      数学            99      王二            101     吕老师         年级班级        课程名称        学分    学生姓名        学号    老师         一年级一班      语文            50      小李            100     吴老师         一年级一班      语文            55      赵三            102     吴老师         一年级一班      语文            78      王二            101     吴老师         一年级一班      语文            78      何六            104     吴老师         一年级一班      语文            92      张五            103     吴老师         年级班级        课程名称        学分    学生姓名        学号    老师         一年级一班      英语            10      王二            101     林老师         一年级一班      英语            50      何六            104     林老师         一年级一班      英语            78      赵三            102     林老师         一年级一班      英语            95      小李            100     林老师         一年级一班      英语            99      张五            103     林老师         学生编号        学生姓名        年级班号        语文分数        数学分数        英语分数        总分数   语文老师       数学老师        英语老师         101             王二            一年级一班      78               99             10              187      吴老师           吕老师         林老师         102             赵三            一年级一班      55               60             78              193      吴老师           吕老师         林老师         104             何六            一年级一班      78               65             50              193      吴老师           吕老师         林老师         100             小李            一年级一班      50               80             95              225      吴老师           吕老师         林老师         103             张五            一年级一班      92               90             99              281      吴老师           吕老师         林老师 请按任意键继续. . .