1 - #include /using namespace std class complex...

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#include <iostream.h> //using namespace std; class complex { friend istream &operator>>(istream & in,complex &c);//ÓÑÔªÉùÃ÷ friend void output(complex c);//ÓÑÔªÉùÃ÷ friend complex operator-(const complex &c1,const complex &c2); friend ostream & operator<< (ostream & out,const complex &c ); friend complex operator-(complex c); public: complex(){} complex(double r,double i=0) { this->real=r; t image=i; } complex(complex &c) { this->real=c.real; this->image=c.image; } void print(); v complex operator+(complex c2) { complex c; c.real =this->real+c2.real ; c.image =this->image+c2.image ; return c; // return complex(this->real+c2.real ,this->image+c2.image); } /* complex operator-()//³ÉÔ±º¯Êý { return complex(-real,-image); }*/ complex operator+=(complex c2) { real=real+c2.real ; image=image+c2.image ; return *this; } bool operator==(complex c2) { if(real==c2.real &&image==c2.image )return true; return false; } bool operator!=(complex c2) { if(real!=c2.real ||image!=c2.image )return true; return false; } operator double() //Ç¿ÖÆת»»ÔËËã·ûÖØÔØ ,³ÉÔ±º¯Êý { return real; } private: double real,image; }; complex operator-(const complex &c1,const complex &c2)
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