【C++】用拷贝函数实现一个复数类（complex）

/*用拷贝函数实现一个复数类（complex）
class complex
{
private:
double _real;
double _image;
};
*/
#include <iostream>
using namespace std;
class complex{
public:
complex(double real,double image);       //拷贝构造函数
complex(const complex& C);
void print();
~complex();
private:
double _real;
double _image;
};
complex::complex(double real, double image)
{
_real = real;
_image = image;
}
complex::complex(const complex& com)
{
_real = com._real;
_image = com._image;
}
void complex::print()
{
cout << "该复数为：" << _real << "+" << "(" << _image << ")" << "i" << endl;
}
complex::~complex()
{
}
int main()
{
complex com1(4.3, 2.1);
complex com2(com1);
com1.print();
com2.print();
return 0;
}