设计一个复数类,实现复数的加、减操作.（考查知识点：类的定义和实现.）用C++进行

设计一个复数类,实现复数的加、减操作.（考查知识点：类的定义和实现.）用C++进行
设计一个复数类,实现复数的加、减操作.（考查知识点：类的定义和实现.）
用C++进行

设计一个复数类,实现复数的加、减操作.（考查知识点：类的定义和实现.）用C++进行

#include <iostream>

using namespace std;

class Complex

{

public:

Complex(double fReal = 0.0, double fImag = 0.0):

m_fReal(fReal),m_fImag(fImag){}

public:

double GetReal(void) const {return m_fReal;}

double GetImag(void) const {return m_fImag;}

public:

void SetReal(double fReal)

{

m_fReal = fReal;

}

void SetImag(double fImag)

{

m_fImag = fImag;

}

public:

void Print(void)

{

cout << "[ " << m_fReal << " + " << m_fImag <<"i ]" << endl;

}

/////////////////////////////////////////////////////////////////////

public:

// 重载运算符前++,实部,虚部各加1

Complex& operator++ (void)

{

++m_fReal;

++m_fImag;

return *this;

}

// 重载运算符后++,实部,虚部各加1

// 加const修饰,使得编译时就报错,避免对后++的连续使用

const Complex operator++ (int)

{

Complex old = *this;

m_fReal++;

m_fImag++;

return old;

}

public:

Complex operator- (void)

{

return Complex(-m_fReal,-m_fImag);

}

public:

Complex operator+ (const Complex &c)

{

return Complex(m_fReal+c.m_fReal,m_fImag+c.m_fImag);

}

Complex operator- (const Complex &c)

{

return Complex(m_fReal-c.m_fReal,m_fImag-c.m_fImag);

}

Complex& operator+= (const Complex &c)

{

m_fReal += c.m_fReal;

m_fImag += c.m_fImag;

return *this;

}

Complex& operator-= (const Complex &c)

{

m_fReal -= c.m_fReal;

m_fImag -= c.m_fImag;

return *this;

}

private:

double m_fReal;

double m_fImag;

//友元函数放在哪里无所谓,但要在类中声明

friend ostream& operator<< (ostream &os, const Complex &c);

friend istream& operator>> (istream &is, Complex &c);

};

ostream& operator<< (ostream &os, const Complex &c)

{

/*return os<<"[ " <<c.GetReal()<<" + "<<c.GetImag()<<"i ]"<<endl;*/

return os << "[ "<<c.m_fReal<<" + "<<c.m_fImag<<"i ]"<<endl;

// return os;

}

istream& operator>> (istream &is, Complex &c)

{

return is>>c.m_fReal>>c.m_fImag;

}

int main(void)

{

Complex c1(10,10);

Complex c2(20,20);

cout << "c1:" << c1 << "c2:" << c2;

/*

c1.Print();

c2.Print();

cout << "请输入实部和虚部:";

cin>>c1;

cout<<c1<<c2<<endl;

*/

/*

cout << c1 << c2;

Complex c3 = c1 + c2;

cout << c3;

Complex c4 = c3 - c2 - c1;

cout << c4;

*/

/*

Complex c3(30,30);

cout << "c3:" << c3 << endl;

c3 += c2 += c1;

cout << "c1:" << c1;

cout << "c2:" << c2;

cout << "c3:" << c3;

*/

/*

Complex c3(30,30);

cout << "c3:" << c3 << endl;

(c3 += c2) += c1;

cout << "c1:" << c1;

cout << "c2:" << c2;

cout << "c3:" << c3;

*/

//cout << "-c1:" << -c1;



/*

int n=10;

cout << ++++++++n << endl;// 14

//cout << n++++++++ << endl;// 错误

*/

cout << "++++++c1:" << ++++++c1 ;

cout << "c2++:" << c2++ ;

cout << "c2:" << c2;

//cout << "c2++++:" << c2++++;// 编译报错



return 0;

}