源程序：

#include <iostream>
using namespace std;class myComplex
{
private:
  double real,imag;
public:
  myComplex();
  myComplex(double r,double i);
  myComplex &operator=(const myComplex &c);
  void outCom();
};myComplex::myComplex()
{
  real=0;
  imag=0;
}myComplex::myComplex(double r,double i)
{
  real=r;
  imag=i;
}void myComplex::outCom()
{
  cout<<"("<<real<<","<<imag<<")"<<endl;
}myComplex &myComplex::operator=(const myComplex &c1)
{
  this->real=c1.real;
  this->imag=c1.imag;
  return *this;
}int main()
{
  myComplex c1(1,2),c2(3,4),res;
  c1.outCom();
  c2.outCom();
  res=c1=c2;
  res.outCom();
  return 1;
}