源程序：
#include <iostream>
#include <string>
using namespace std;
class myDate
{
public:
myDate();
myDate(int);
myDate(int,int);
myDate(int,int,int);
void setDate(int a, int b, int c)
{
year = a;
month = b;
day = c;
}
void printDate() const
{
cout << year << month << day << endl;
}
private:
int year;
int month;
int day;
};
//以下为函数的定义
myDate::myDate()
{
year = 1970;
month = 1;
day = 25;
}//不带参数
myDate::myDate(int d) :year(1970), month(1)
{
day = d;
}
myDate::myDate(int m, int d) : year(1970)
{
month = m;
day = d;
}
myDate::myDate(int y, int m, int d)
{
year = y;
month = m;
day = d;
}
class Student
{
public:
Student();
Student(string);
void setStudent(string,myDate);
void setStudent(string);
void setName(string);
string getName();
void setBirthday(myDate);
myDate getBirthday();
void printStudent() const;
public:
string name;
myDate birthday;
};
Student::Student() :name("Noname"), birthday(myDate()) {};
Student::Student(string n) :name(n), birthday(myDate()) {};
void Student::setStudent(string s, myDate d)
{
name = s;
birthday.setDate(1971,9,12);
return;
}
void Student::setStudent(string s)
{
name = s;
myDate d;
birthday.setDate(1982,3,14);
return;
}
void Student::setName(string n)
{
name = n;
return;
}
string Student::getName()
{
return name;
}
void Student::setBirthday(myDate d)
{
birthday.setDate(1999,12,19);
return;
}
myDate Student::getBirthday()
{
return birthday;
}
void Student::printStudent() const
{
cout << "姓名：" << name << "\t生日:";
birthday.printDate();
cout << endl;
}
int main()
{
myDate d0;
myDate d1(25);
myDate(10,25);
myDate(1970,10,25);
myDate birthday(1970,1,12);
Student stud;
Student ss[2];
int y, m, d, i;
string name_;
stud.printStudent();
for (i = 0; i < 2; i++)
ss[i].printStudent();
for (i = 0; i < 2; i++)
{
cout << "请输入学生的姓名和生日，生日以\"年 月 日\"的次序输入：";
cin >> name_ >> y >> m >> d;
ss[i].setStudent(name_, myDate(y,m,d));
}
for (i = 0; i < 2; i++)
ss[i].printStudent();
system("pause");
return 0;
}
原文：https://www.cnblogs.com/duanqibo/p/11996746.html