// 构造函数的分类与调用
#include <iostream>
#include <bitset>

using namespace std;

class C
{
private:
    int x, y;

public:
    C(int x)
    {
        this->x = x;
    }
    C(int x, int y)
    {
        this->x = x;
        this->y = y;
    }
    C(const C &other)
    {
        this->x = other.x;
        this->y = other.y;
    }
    void show()
    {
        cout << "x = " << x << ", y = " << y << endl;
    }
    ~C()
    {
        cout << this << "释放资源" << endl;
    }
};

int main()
{
    cout << "C(0,1) 之前" << endl;
    C(0, 1); // 匿名创建的类对象，创建完后就直接释放了
    cout << "C(0,1) 之后" << endl;

    C c1(1, 2);
    c1.show();
    C c2 = (1, 5); // 使用单参数构造函数 C(int x), 然后将其改为 ", 运算" 后面的值
    // C c2 = 1;
    c2.show();
    C c3 = C(3, 4);
    c3.show();
    C c4(c3);
    c4.show();
    C &c5 = c4;
    c5.show();

    return 0;
}