C++实现：简单的学生信息管理系统(控制台程序)

1、/ StudentInformationSystem.cpp : Defines the entry point for the console application./#include "stdafx.h"#include <cstring>#include <iostream>#include <conio.h>#include<vector>#include<algorithm>class Studentprivate: char idNumber13; /学号char name30; /姓名char ad

2、dress50; /地址char telephone14; /电话号码int gradeMath; /数学成绩int gradePhysics; /物理成绩int gradeEnglish; /英语成绩double gradeMaPhEgAverage; /物数外平均int rankGrade; /成绩排名int gradeClassmate; /同学评分int gradeTeacher; /老师评分int gradeEthic; /道德评分double gradeAll; /综合成绩int rankAll; /综合排名public:Student(); /默认构造函数void Student

3、_WritePersonalInformation(char *iD, char *nam, char *add, char *tel); /更改学生信息void Student_WriteMaPhEgGrade(int graMa, int graPh, int graEg); /更改学生考试成绩void Student_WriteOtherGrade(int graCl, int graTe, int graEth); /更改学生其他成绩void Student_DisplayInformation(); /显示学生信息char *Student_ReadID();double Stude

4、nt_ReadGrade();double Student_ReadTotalGrade();int Student_ReadGradeRank();int Student_ReadTotalGradeRank();void Student_WriteGradeRank(int ranGr); /更改学生成绩排名void Student_WriteTotalGradeRank(int ranAl); /更改学生综合排名char *Student_ReadName();Student:Student() /默认构造函数strncpy_s(idNumber, "000000000000&

5、quot;,12);strncpy_s(name,"空",30);strncpy_s(address, "空", 50);strncpy_s(telephone, "空", 14); /电话号码gradeMath=0; /数学成绩gradePhysics=0; /物理成绩gradeEnglish=0; /英语成绩gradeMaPhEgAverage=0; /物数外平均rankGrade=0; /成绩排名gradeClassmate=0; /同学评分gradeTeacher=0; /老师评分gradeEthic=0; /道德评分 gra

6、deAll=0; /综合成绩rankAll=0; /综合排名 void Student:Student_WritePersonalInformation(char *iD, char *nam, char *add, char *tel)strncpy_s(idNumber,iD,12);strncpy_s(name, nam, 30);strncpy_s(address, add,50);strncpy_s(telephone, tel, 14);void Student:Student_WriteMaPhEgGrade(int graMa, int graPh, int graEg)gra

7、deMath = graMa;gradePhysics = graPh;gradeEnglish = graEg;gradeMaPhEgAverage = (gradeMath + gradePhysics + gradeEnglish) / 3;void Student:Student_WriteOtherGrade(int graCl, int graTe, int graEth)gradeClassmate = graCl;gradeTeacher = graTe;gradeEthic = graEth;gradeAll = gradeMaPhEgAverage*0.6 + gradeC

8、lassmate*0.1 + gradeEthic*0.1 + gradeTeacher*0.2;void Student:Student_WriteGradeRank(int ranGr)rankGrade = ranGr;void Student:Student_WriteTotalGradeRank(int ranAl)rankAll = ranAl;void Student:Student_DisplayInformation()using namespace std;cout << "-" << endl;cout << &qu

9、ot; 学生信息 " << endl;cout << "姓名:" << name << endl<< "学号:" << idNumber << endl<< "地址:" << address << endl<< "电话:" << telephone << endl << "数学成绩:" << gradeMat

10、h << endl<< "物理成绩:" << gradePhysics << endl<< "英语成绩:" << gradeEnglish << endl<< "三科平均成绩:" << gradeMaPhEgAverage << endl<< "学习成绩排名:" << rankGrade << endl<< "同学评价得分:" &

11、lt;< gradeClassmate << endl<< "教师评价得分:" << gradeTeacher << endl<< "道德修养评分:" << gradeEthic << endl<< "综合成绩:" << gradeAll << endl<< "综合成绩排名:" << rankAll << endl;cout << "

12、-" << endl;char *Student:Student_ReadID()return idNumber;double Student:Student_ReadGrade()return gradeMaPhEgAverage;double Student:Student_ReadTotalGrade()return gradeAll;int Student:Student_ReadGradeRank()return rankGrade;int Student:Student_ReadTotalGradeRank()return rankAll;namespace

13、studentInformationstd:vector<Student> studentVector;int flagStudentChoose=0;int flagStudentFound=1;char *Student:Student_ReadName()return name;/-以上是基本数据结构的定义，同时定义了对数据的基本操作。定义完毕了，接下来是功能函数-void MainMenu();void EditMenu();void AddStudentPersonalInformation(int mode);void ModifyStudentInformation(

14、);void SearchStudent();void DeleteStudentInformation();void DisplayStudentInformation();void RankByGrade();void RankByTotalGrade();void RankByID();bool CmpGrade(Student student1,Student student2); /这个函数的参数是两个Student类的对象bool CmpTotalGrade(Student student1, Student student2);bool CmpID(Student student

15、1, Student student2);void DisplayAllStudentInformation();/-以下是主菜单界面函数-void MainMenu()int flagOperateInformation = 1;while (flagOperateInformation)using namespace std;cout << "-" << endl;cout << "欢迎进入学生信息管理系统V1.0." << endl << endl;cout << "

16、按下1:进入学生信息管理系统." << endl;cout << "按下0:退出." << endl;cout << "-" << endl<<endl<<endl;cin >> flagOperateInformation;cin.clear();cout << endl;if (flagOperateInformation)EditMenu();/-主菜单界面函数定义完毕-/-以下是编辑界面函数-void EditMenu()int

17、flagContinueOperation = 1;while (flagContinueOperation)flagContinueOperation = 0;using namespace std;cout << "-" << endl;cout << " 主菜单 " << endl;cout << "按下1:添加学生信息." << endl;cout << "按下2:修改学生信息." << endl;cout &l

18、t;< "按下3:删除学生信息." << endl;cout << "按下4:显示学生信息." << endl;cout << "按下5:按学号升序排序" << endl;cout << "按下6:读入已有信息（暂时没实现）" << endl;cout << "按下7:将信息输出（暂时没实现）" << endl;cout << "按下8:显示系统内所有学生的信息

19、" << endl;cout << "按下0:返回上一级." << endl;cout << "-" << endl << endl;cin >> flagContinueOperation;cin.clear();cout << endl;switch (flagContinueOperation) case 1:AddStudentPersonalInformation(1); break;case 2:ModifyStudentInformat

20、ion(); break;case 3:DeleteStudentInformation(); break;case 4:DisplayStudentInformation(); break;case 5:RankByID(); break;case 6:cout << "功能暂未实现" << endl; break;case 7:cout << "功能暂未实现" << endl; break;case 8:DisplayAllStudentInformation(); break; case 0:brea

21、k;/-/-以下是添加信息的界面-void AddStudentPersonalInformation(int mode)using namespace std;int flagAddPersonalInformation;int flagAddGrade;int falgAddOtherGrade;Student student1;studentInformation:studentVector.push_back(student1);int currentObjectPosition;if (mode = 1)currentObjectPosition = studentInformati

22、on:studentVector.size() - 1;elsecurrentObjectPosition = studentInformation:flagStudentChoose;/-cout << "请依次添加基本信息、学习成绩和其他成绩，且不要使用空格" << endl;cout << "-" << endl;cout << " 基本信息 " << endl;cout << "按下1：录入学生基本信息;" <<

23、 endl<< "按下0：跳过基本信息。"<<endl<<"-"<<endl;cin >> flagAddPersonalInformation;cin.clear();if (flagAddPersonalInformation)char name30;char iD13;char address50;char phone14;cout << "请输入学生姓名："cin >> name;cin.clear();cout << "

24、请输入学生学号："cin >> iD;cin.clear();cout << "请输入学生地址："cin >> address;cin.clear();cout << "请输入学生电话："cin >> phone;cin.clear();studentInformation:studentVectorcurrentObjectPosition.Student_WritePersonalInformation(iD,name,address,phone);cout << &q

25、uot;基本信息输入成功！" << endl<< "-" << endl;/-cout << "-" << endl;cout << " 学习成绩 " << endl;cout << "按下1：录入学生学习成绩;" << endl<< "按下0：跳过学习成绩信息。" << endl<< "-" << endl;c

26、in >> flagAddGrade;cin.clear();if (flagAddGrade)int mathGrade;int physicsGrade;int englishGrade;cout << "请输入数学成绩："cin >> mathGrade;cin.clear();cout << "请输入物理成绩："cin >> physicsGrade;cin.clear();cout << "请输入英语成绩："cin >> englishGra

27、de;cin.clear();studentInformation:studentVectorcurrentObjectPosition.Student_WriteMaPhEgGrade(mathGrade, physicsGrade, englishGrade);cout << "学习成绩输入成功！" << endl<< "-" << endl;/-cout << "-" << endl;cout << " 其他成绩 " <

28、< endl;cout << "按下1：录入学生其他成绩;" << endl<< "按下0：跳过其他成绩信息。" << endl<< "-" << endl;cin >> flagAddGrade;cin.clear();if (flagAddGrade)int peerGrade;int teacherGrade;int ethicGrade;cout << "请输入同学评议成绩："cin >> pe

29、erGrade;cin.clear();cout << "请输入教师评议成绩："cin >> teacherGrade;cin.clear();cout << "请输入道德测评成绩成绩："cin >> ethicGrade;cin.clear();studentInformation:studentVectorcurrentObjectPosition.Student_WriteOtherGrade(peerGrade, teacherGrade, ethicGrade);cout << &qu

30、ot;其他成绩输入成功！" << endl<< "-" << endl;RankByGrade();RankByTotalGrade();cout << "学生成绩录入成功！" << endl;cout << "-" << endl<<endl;void SearchStudent()using namespace std;using namespace studentInformation;char ID13;cout <

31、< "请输入学生的学号："<<endl;cin >> ID;cin.clear();cout << "-"<<endl;int vectorSize = studentVector.size();int i = 0;while (i<vectorSize) & (flagStudentFound!=0)flagStudentFound = strcmp(ID, studentVectori.Student_ReadID();i = i + 1;if (flagStudentFound =

32、 0)flagStudentChoose = i - 1;flagStudentFound = 1;cout << "您所查找的学生信息如下："<<endl;studentVectorflagStudentChoose.Student_DisplayInformation();elsecout << "未找到该学生" << endl;void ModifyStudentInformation()using namespace std;using namespace studentInformation;in

33、t searchVectorSize = studentVector.size();if (searchVectorSize = 0)cout << "-" << endl;cout << "当前系统中没有学生信息,请先添加学生信息！" << endl;cout << "-" << endl;elseSearchStudent(); cout << "您想对该学生的信息进行修改吗？" << endl;cout <&

34、lt; "按下1：是的。" << endl;cout << "按下0：放弃修改。" << endl;cout << "-" << endl;int flagModify;cin >> flagModify;cin.clear();if (flagModify = 1)&(flagStudentFound = 0)AddStudentPersonalInformation(2);void DeleteStudentInformation()using nam

35、espace std;using namespace studentInformation;int deleteVectorSize = studentVector.size();if (deleteVectorSize = 0)cout << "-" << endl;cout << "当前系统中没有学生信息,请先添加学生信息！" << endl;cout << "-" << endl;elseSearchStudent();cout << "

36、;您想删除该学生的信息吗？" << endl;cout << "按下1：删除。" << endl;cout << "按下0：取消。" << endl;cout << "-" << endl;int flagModify;cin >> flagModify;cin.clear();if (flagModify = 1)&(flagStudentFound = 0)std:vector<Student>:itera

37、tor iter = studentVector.begin() + flagStudentChoose; /这样就选中了一个查到的元素studentVector.erase(iter);cout << "学生信息删除成功!" << endl<< "-" << endl;void DisplayStudentInformation()using namespace std;using namespace studentInformation;int displayVectorSize = studentVe

38、ctor.size();if (displayVectorSize = 0)cout << "-" << endl;cout << "当前系统中没有学生信息,请先添加学生信息！" << endl;cout << "-" << endl;elseSearchStudent();if (flagStudentFound = 0)studentVectorflagStudentChoose.Student_DisplayInformation();bool CmpGra

39、de(Student student1, Student student2)return student1.Student_ReadGrade() > student2.Student_ReadGrade(); /如果student1成绩大于student2，则返回1.这样能实现成绩的降序排列void RankByGrade()using namespace studentInformation;using namespace std;int rankVectorSize = studentVector.size();if (rankVectorSize = 1)studentVecto

40、r0.Student_WriteGradeRank(1);elsesort(studentVector.begin(), studentVector.end(), CmpGrade); /使用sort必须加上#include algorithm和std。sort的前两个参数是指针int i = 0;for (i = 0; i <= rankVectorSize-1; i+)if (i>=1)&&(studentVectori.Student_ReadGrade() = studentVectori - 1.Student_ReadGrade()studentVect

41、ori.Student_WriteGradeRank(studentVectori - 1.Student_ReadGradeRank();elsestudentVectori.Student_WriteGradeRank(i + 1);bool CmpTotalGrade(Student student1, Student student2)return student1.Student_ReadTotalGrade() > student2.Student_ReadTotalGrade(); /如果student1成绩大于student2，则返回1.这样能实现成绩的降序排列void

42、RankByTotalGrade()using namespace studentInformation;using namespace std;int rankVectorSize = studentVector.size();if (rankVectorSize = 1)studentVector0.Student_WriteTotalGradeRank(1);elsesort(studentVector.begin(), studentVector.end(), CmpGrade); /使用sort必须加上#include algorithm和std。sort的前两个参数是指针int i

43、 = 0;for (i = 0; i <= rankVectorSize - 1; i+)if (i >= 1) && (studentVectori.Student_ReadTotalGrade() = studentVectori - 1.Student_ReadTotalGrade()studentVectori.Student_WriteTotalGradeRank(studentVectori - 1.Student_ReadTotalGradeRank();elsestudentVectori.Student_WriteTotalGradeRank(i

44、+ 1);bool CmpID(Student student1, Student student2)int result;result = strcmp(student1.Student_ReadID(), student2.Student_ReadID();if (result<0)return true;elsereturn false;void RankByID()using namespace studentInformation;using namespace std;int rankVectorSize = studentVector.size();sort(student

45、Vector.begin(), studentVector.end(), CmpID);cout << "-" << endl;cout << "排序成功！" << endl;cout << "-" << endl;void DisplayAllStudentInformation()using namespace std;using namespace studentInformation;int displayVectorSize = studentVecto

46、r.size();int i;if (displayVectorSize = 0)cout << "-" << endl;cout << "当前系统中没有学生信息!" << endl;cout << "-" << endl;elsecout << "-" << endl;cout << "姓名 学号 综合成绩 综合排名" << endl;for (i = 0; i < d

47、isplayVectorSize; i+)cout << studentVectori.Student_ReadName() << " "<< studentVectori.Student_ReadID() << " "<< studentVectori.Student_ReadTotalGrade() << " "<< studentVectori.Student_ReadTotalGradeRank() << endl;cout <

48、;< "-" << endl;/-以下是主函数-void main()MainMenu();/*-下面的这是一个排序函数，用到了冒泡排序法，但是程序没用到。上面的排序用了sort（）函数来实现，功能是一样的。*/*void RankByGrade()using namespace studentInformation;using namespace std;int flagCompareOut=0;int flagCompareIn=0;int rankVectorSize;rankVectorSize = studentVector.size();if

49、(rankVectorSize = 0)cout << "-" << endl<< "系统当前没有学生信息！" << endl<< "-" << endl;else if (rankVectorSize = 1)studentVectorflagCompareOut.Student_WriteGradeRank(flagCompareOut + 1);elseint flagCompareOut = 0;int flagCompareIn = 0;for (fla

50、gCompareOut = 0; flagCompareOut < rankVectorSize - 1; flagCompareOut+)for (flagCompareIn = 0; flagCompareIn < rankVectorSize - flagCompareOut - 1; flagCompareIn+)if (studentVectorflagCompareIn.Student_ReadGrade() < studentVectorflagCompareIn + 1.Student_ReadGrade()Student studentTemp;studentTe