自考新教材--p103(复制的构造函数)
源程序：
#include <iostream>
#include <string>
using namespace std;
class myDate
{
private:
int year, month, day;
public:
myDate();
void setDate(int y,int m,int d)
{
year = y;
month = m;
day = d;
}
void setDate(myDate dd)
{
year = dd.year;
month = dd.month;
day = dd.day;
}
myDate(int, int, int);
void printDate() const;
};
myDate::myDate() :year(1990), month(9), day(19) {}
myDate::myDate(int y, int m, int d)
{
year = y;
month = m;
day = d;
}
void myDate::printDate() const
{
cout << "year:" << year << "month:" << month << "day:" << day << endl;
}
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;
Student(const Student &); //声明复制的构造函数
private:
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(d);
return;
}
void Student::setStudent(string s)
{
name = s;
myDate d;
birthday.setDate(d);
return;
}
void Student::setName(string n)
{
name = n;
return;
}
string Student::getName()
{
return name;
}
void Student::setBirthday(myDate d)
{
birthday.setDate(d);
return;
}
myDate Student::getBirthday()
{
return birthday;
}
void Student::printStudent() const
{
cout << "姓名：" << name << "\t生日:";
birthday.printDate();
cout << endl;
}
Student::Student(const Student &s) //定义复制的构造函数
{
name = s.name;
birthday = s.birthday;
}
/*
int main()
{
myDate birthday;
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 1;
}
int main()
{
Student stud;
stud.printStudent();
stud.setName("chen");
stud.printStudent();
Student *spointer[2] = {new Student(),&stud};//使用构造函数生成对象指针数组
Student sy[2] = {Student(),stud};
for (int i = 0; i < 2; i++)
spointer[i]->printStudent();
for (int i = 0; i < 2; i++)
sy[i].printStudent();
stud.setName("wang");
for (int i = 0; i < 2; i++)
spointer[i]->printStudent();
spointer[0]->setName("liang");
spointer[1]->setName("liu");
for (int i = 0; i < 2; i++)
spointer[i]->printStudent();
stud.printStudent();
for (int i = 0; i < 2; i++)
sy[i].printStudent();
system("pause");
return 1;
}
*/
int main()
{
Student stud;
Student ss[2] = {stud,Student()};
stud.printStudent();
stud.setName("111111");
ss[0] = Student(stud);
ss[1] = Student();
stud.printStudent();
ss[0].printStudent();
ss[1].printStudent();
system("pause");
return 1;
}
运行结果：
