课堂练习

#include<iostream> 
using namespace std;
class Complex
{
public:
Complex(float r1,float i1); 
Complex(float r1);
void add(Complex c);
void show();
private:
float r;
float i;
};
Complex::Complex(float r1,float i1)
{
r=r1;
i=i1;
}
Complex::Complex(float r1)
{
r=r1;
}
void Complex::add(Complex c)
{
r+=c.r;
i+=c.i;
}
void Complex::show()
{
cout<<r<<"+"<<i<<"i"<<endl;
}
int main()
{
Complex c1(1,2);
Complex c2=3.5;
c1.add(c2);
c1.show();
}