在C++写了一个复数的类

#include
using namespace std;

class CComplex //类名以大写C开头
{
    double m_real;
    double m_image;
public:
    CComplex()
    {
        m_real = 0;
        m_image = 0;
    }
    CComplex(double r, double i)
    {
        m_real = r;
        m_image = i;
    }
    void setInfo(double real, double image)
    {
        m_real = real;
        m_image = image;
    }
    void show()
    {
        if (m_image >= 0)
            cout << m_real << "+" << m_image << "*i" << endl;
        else
            cout << m_real << "-" << -1 * m_image << "*i" << endl;
    }
};

• this 指针
• 构造函数

int main()
{
    CComplex c1;
    c1.setInfo(-3.5,-4.7);
    c1.show();
    CComplex c2=c1; //两者不合用内存
    c2.show();
    c2.setInfo(4,6);
    c2.show();
    c1.show();
    return 0;
}