我是C++初学者，我有一个复制构造函数的问题，我需要做一个深复制，因为我的类有一个指针，我已经定义了一个复制构造函数，我也创建了一个对象N1（2，3），以及通过使用复制构造函数初始化的第二对象N2。复制构造函数不进行深复制，因为当我改变对象N1和N2的值时，他的值也改变了，我想用复制构造函数得到两个独立的对象
我的班级编号：
类别编号{

private:
int* a;
int* b;

public:
//default constructor:
Number() {
    a = new int;
    b = new int;
    *a = 0;
    *b = 0;
}

//constructor with arguments:
Number(int val1, int val2) {
    a = new int;
    b = new int;
    *a = val1; 
    *b = val2;
}
//copy constructor:
Number(const Number& other) {
    a = new int(*a = *(other.a));
    b = new int(*b = *(other.b));
}

//getters and setters:
int getA() {
    return *a;
}
int getB() {
    return *b;
}
void setA(int val) {
    *a = val;
}
void setB(int val) {
    *b = val;
}

//method print:
void print() {
    cout << "value of a: " << *a << " value of b: " << *b << endl;
}

};
主要：

Number N1(2,3), N2;
N1.print(); //2-3
N2.print(); //0-0

N2 = N1;

N1.print(); //2-3
N2.print(); //2-3

N1.setA(12);

N1.print(); //12-3
N2.print(); //12-3 i want N2 to have 2-3 not 12-3 like N1, 
            //i want to separate N1 from N2