1. 定义一个Person类，私有成员int age，string &name，定义一个Stu类，包含私有成员double *score，写出两个类的构造函数、析构函数、拷贝构造和拷贝赋值函数，完成对Person的运算符重载(算术运算符、条件运算符、逻辑运算符、自增自减运算符、插入/提取运算符)

#include <iostream>
using namespace std;class Person
{int age;string &name;
public://构造函数void show();void show1();Person(string &a):name(a){}Person(int a,string &b):age(a),name(b){}//拷贝构造函数Person(const Person &other):age(other.age),name(other.name){}//拷贝赋值函数Person &operator=(const Person &other){this->age=other.age;this->name=other.name;return *(this);}//算数运算符Person operator+(Person &other);//类内定义friend Person operator+(Person a1,Person a2);//类外定义Person operator-(Person &other);//类内定义friend Person operator-(Person a1,Person a2);//类外定义Person operator*(Person &other);//类内定义friend Person operator*(Person a1,Person a2);//类外定义Person operator/(Person &other);//类内定义friend Person operator/(Person a1,Person a2);//类外定义Person operator%(Person &other);//类内定义friend Person operator%(Person a1,Person a2);//类外定义//条件运算符bool operator>(Person &other);//类内定义friend bool operator>(Person a1,Person a2);//类外定义bool operator>=(Person &other);//类内定义friend bool operator>=(Person a1,Person a2);//类外定义bool operator<(Person &other);//类内定义friend bool operator<(Person a1,Person a2);//类外定义bool operator<=(Person &other);//类内定义friend bool operator<=(Person a1,Person a2);//类外定义bool operator==(Person &other);//类内定义friend bool operator==(Person a1,Person a2);//类外定义bool operator!=(Person &other);//类内定义friend bool operator!=(Person a1,Person a2);//类外定义//逻辑运算符bool operator&&(Person &other);//类内定义friend bool operator&&(Person a1,Person a2);//类外定义bool operator||(Person &other);//类内定义friend bool operator||(Person a1,Person a2);//类外定义//自增自减运算符Person operator++(int);//类内定义后置++friend Person operator++(Person &other,int);//类外定义后置++Person operator++();//类内定义前置++friend Person operator++(Person &other);//类外定义前置++Person operator--(int);//类内定义后置++friend Person operator--(Person &other,int);//类外定义后置--Person operator--();//类内定义前置--friend Person operator--(Person &other);//类外定义前置--//插入提取运算符friend ostream &operator<<(ostream &out,Person &other);friend istream &operator>>(istream &in,Person &other);//析构函数~Person(){}
};class Stu
{double *score;
public:void show();//构造函数Stu(){}Stu(double score):score(new double(score)){}//拷贝构造函数Stu(const Stu& other):score(new double(*other.score)){}//拷贝赋值函数Stu &operator=(const Stu &other){*(this->score) = *(other.score);return (*this);}//析构函数~Stu(){}
};void Person::show()
{cout << "age= " << age << endl;cout << "name=" << name << endl;
}
void Person::show1()
{cout << "age= " << age << endl;
}void Stu::show()
{cout << "*score= " << *score << endl;
}Person Person::operator+(Person &other)
{string str("zhangsan");Person temp(str);temp.age=this->age+other.age;//temp.name=this->name+other.name;return temp;
}
Person operator+(Person a1,Person a2)
{string str("aaa");Person temp(str);temp.age=a1.age+a2.age;//temp.name=a1.name+a2.name;return temp;
}
Person Person::operator-(Person &other)
{string str("zhangsan");Person temp(str);temp.age=this->age-other.age;//temp.name=this->name+other.name;return temp;
}
Person operator-(Person a1,Person a2)
{string str("aaa");Person temp(str);temp.age=a1.age-a2.age;//temp.name=a1.name+a2.name;return temp;
}
Person Person::operator*(Person &other)
{string str("zhangsan");Person temp(str);temp.age=this->age*other.age;//temp.name=this->name+other.name;return temp;
}
Person operator*(Person a1,Person a2)
{string str("aaa");Person temp(str);temp.age=a1.age*a2.age;//temp.name=a1.name+a2.name;return temp;
}
Person Person::operator/(Person &other)
{string str("zhangsan");Person temp(str);temp.age=this->age/other.age;//temp.name=this->name+other.name;return temp;
}
Person operator/(Person a1,Person a2)
{string str("aaa");Person temp(str);temp.age=a1.age/a2.age;//temp.name=a1.name+a2.name;return temp;
}
Person Person::operator%(Person &other)
{string str("zhangsan");Person temp(str);temp.age=this->age%other.age;//temp.name=this->name+other.name;return temp;
}
Person operator%(Person a1,Person a2)
{string str("aaa");Person temp(str);temp.age=a1.age%a2.age;//temp.name=a1.name+a2.name;return temp;
}bool operator>(Person a1,Person a2)
{return a1.age > a2.age;}
bool Person::operator>(Person &a1)
{return this->age > a1.age;
}
bool operator>=(Person a1,Person a2)
{return a1.age >= a2.age;}
bool Person::operator>=(Person &a1)
{return this->age >= a1.age;
}
bool operator<=(Person a1,Person a2)
{return a1.age <= a2.age;}
bool Person::operator<=(Person &a1)
{return this->age <= a1.age;
}
bool operator<(Person a1,Person a2)
{return a1.age < a2.age;}
bool Person::operator<(Person &a1)
{return this->age < a1.age;
}
bool operator==(Person a1,Person a2)
{return a1.age == a2.age;}
bool Person::operator==(Person &a1)
{return this->age == a1.age;
}
bool operator!=(Person a1,Person a2)
{return a1.age != a2.age;}
bool Person::operator!=(Person &a1)
{return this->age >= a1.age;
}bool Person::operator&&(Person &other)
{return this->age && other.age;
}
bool operator&&(Person a1,Person a2)
{return a1.age && a2.age;
}
bool Person::operator||(Person &other)
{return this->age || other.age;
}
bool operator||(Person a1,Person a2)
{return a1.age || a2.age;
}Person Person::operator++(int)
{string str="zhangsan";Person temp(str);temp.age = this->age++;return temp;
}Person operator++(Person &other,int)
{string str="zhangsan";Person temp(str);temp.age=other.age++;return temp;
}
Person Person::operator++()
{++(this->age);return (*this);
}
Person operator++(Person &other)
{++(other.age);return other;
}
Person Person::operator--(int)
{string str="zhangsan";Person temp(str);temp.age = this->age--;return temp;
}Person operator--(Person &other,int)
{string str="zhangsan";Person temp(str);temp.age=other.age--;return temp;
}
Person Person::operator--()
{--(this->age);return (*this);
}
Person operator--(Person &other)
{--(other.age);return other;
}ostream &operator<<(ostream &out,Person &other)
{out << other.age << endl;return out;
}
istream &operator>>(istream &out,Person &other)
{out >> other.age;return out;
}int main()
{cout << "---person构造函数---" << endl;string str="shangsan";Person a1(1,str);a1.show();cout << "---person拷贝构造函数---" << endl;Person a2=a1;a2.show();cout << "---person拷贝赋值函数---" << endl;Person a3(str);a3=a1;a3.show();cout << "---Stu构造函数---" << endl;Stu b1(100);b1.show();cout << "---stu拷贝构造函数---" << endl;Stu b2=b1;b2.show();cout << "---stu拷贝赋值函数---" << endl;Stu b3;b3=b1;b3.show();string str1("hello");string str2(" world");Person a4(10,str1);Person a5(50,str2);Person a6=operator+(a4,a5);a6.show1();a6=operator-(a4,a5);a6.show1();a6=operator*(a4,a5);a6.show1();a6=operator/(a4,a5);a6.show1();a6=operator%(a4,a5);a6.show1();bool c1=operator>(a4,a5);bool c2=a4.operator>(a5);cout << "c1= " << c1 << endl;cout << "c2= " << c2 << endl;c1=operator>=(a4,a5);c2=a4.operator>=(a5);cout << "c1= " << c1 << endl;cout << "c2= " << c2 << endl;c1=operator<(a4,a5);c2=a4.operator<(a5);cout << "c1= " << c1 << endl;cout << "c2= " << c2 << endl;c1=operator<=(a4,a5);c2=a4.operator<=(a5);cout << "c1= " << c1 << endl;cout << "c2= " << c2 << endl;c1=operator==(a4,a5);c2=a4.operator==(a5);cout << "c1= " << c1 << endl;cout << "c2= " << c2 << endl;c1=operator!=(a4,a5);c2=a4.operator!=(a5);cout << "c1= " << c1 << endl;cout << "c2= " << c2 << endl;c1=operator&&(a4,a5);c2=a4.operator&&(a5);cout << "c1= " << c1 << endl;cout << "c2= " << c2 << endl;cout << "aaaa" << endl;Person a7=a4.operator++();a7.show1();a7=operator++(a4);a7.show1();a7=a5.operator++(10);a7.show1();a7=operator++(a5,10);a7.show1();a7=a4.operator--();a7.show1();a7=operator--(a4);a7.show1();a7=a5.operator--(10);a7.show1();a7=operator--(a5,10);a7.show1();cout<<a4 << a5 << endl;operator<<(cout,a4);operator<<(cout,a5);Person a8(str);cin>>a8;a8.show1();operator>>(cin,a8);a8.show1();return 0;
}