#include <iostream> 
#include<cmath>
using namespace std;//蓝多多作业
class Complex
{
private:
	double real;
	double imag;
public:
	Complex()//无参构造函数
	{real = 0; imag = 0;}
	Complex(double a, double b)//有参构造函数
	{ real = a; imag = b; }
	~Complex()//析构函数
	{}
	Complex(const Complex &p)//深拷贝构造函数
	{
		real = p.real; imag = p.imag;
	}
	void output();//声明一个输出函数
	double size();//声明一个求模函数
	Complex addition(Complex &c1);//声明一个加法函数
};
double Complex::size()
{
	double c;
	c = sqrt(real*real + imag * imag);
	return c;
}
void Complex::output()
{
	cout << real << "+" << "(" << imag << ")" << "i" << endl;
}
Complex Complex::addition(Complex &c1)
{
	real = c1.real + real;
	imag = c1.imag + imag;
	return *this;
}
int main()
{
	Complex c1(3, 4), c2(5, -10), c3;
	c3 = c1.addition(c2);//求c1和c2的和并赋给c3
	cout << "c3=";
	c3.output();
	cout << "c3的模是" << c3.size() << endl;
	system("pause");
	return 0;
}