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.）

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1Complex& 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;}