题目：
定义一个学生类CStudent实现简单的学籍管理功能，要求该类至少实现以下功能：
(1) 录入学生的基本信息(包括姓名，学号，性别，年龄，专业，入学时间，各门功课成`绩)
(2) 定义Date类来定义学生入学时间
(3) 定义Subject类表示学生三门功课成绩：数学，英语和C语言。统计学生每门功课总成绩和平均成绩。
(4) main()函数中初始化5个学生基本信息
(5) 输出学生的基本信息
(6) 输出每门功课总成绩
(7) 输出每门功课平均成绩
解答：
#include<iostream>
using namespace std;
class Date {
public:
int year;
int month;
int day;
};
class Subject {
public:
double math;
double english;
double CProgram;
};
class CStudent{
private:
string name;
int studentID;
string sex;
int age;
string major;
Date enrollmentTime;
Subject score;
double scoreTotal;
double scoreAverage;
public:
static double number;
static double mathTotal;
static double englishTotal;
static double CProgramTotal;
CStudent(string n,
int I,
string s,
int a,
string m,
int ye,int mo,int da,
double mat,double eng,double CPr
) {
name = n;
studentID = I;
sex = s;
age = a;
major = m;
enrollmentTime.year = ye;
enrollmentTime.month = mo;
enrollmentTime.day = da;
score.math = mat;
score.english = eng;
score.CProgram = CPr;
scoreTotal = mat + eng + CPr;
scoreAverage = scoreTotal / 3;
number++;
mathTotal += mat;
englishTotal += eng;
CProgramTotal += CPr;
}
void showStudent(void) {
cout << name << "\t"
<< studentID << "\t"
<< sex << "\t"
<< age << "\t"
<< major << "\t"
<< enrollmentTime.year << "-" << enrollmentTime.month << "-" << enrollmentTime.day << "\t"
<< score.math << "\t\t"
<< score.english << "\t\t"
<< score.CProgram << "\t\t"
<< scoreTotal << "\t"
<< scoreAverage << endl;
}
};
double CStudent::number = 0;
double CStudent::mathTotal = 0;
double CStudent::englishTotal = 0;
double CStudent::CProgramTotal = 0;
int main(void)
{
CStudent student1("张三", 01, "男", 18, "计算机", 2020, 9, 01, 100, 99, 98.1);
CStudent student2("李四", 02, "男", 18, "信安", 2020, 9, 01, 97,96, 95);
CStudent student3("王五", 03, "男", 18, "大数据", 2020, 9, 01, 94 ,93, 92);
CStudent student4("赵六", 04, "男", 18, "物联网", 2020, 9, 01, 91, 90, 89);
CStudent student5("赵小六", 05, "女", 18, "中加", 2020, 9, 01, 88, 87, 86);
cout << "姓名\t" << "学号\t" << "性别\t" << "年龄\t" << "专业\t" << "入学时间\t" << "数学成绩\t" << "英语成绩\t" << "C语言成绩\t" << "总成绩\t" << "平均成绩\t" << endl;
student1.showStudent();
student2.showStudent();
student3.showStudent();
student4.showStudent();
student5.showStudent();
cout << endl;
cout << "数学平均成绩：" << CStudent::mathTotal / CStudent::number << endl;
cout << "英语平均成绩：" << CStudent::englishTotal / CStudent::number << endl;
cout << "C语言平均成绩：" << CStudent::CProgramTotal / CStudent::number << endl;
return 0;
}```