class base{
public:
unsigned int base(unsigned int size) {sz = size; return sz; }
~base() { }
virtual char * hpstget()=0;
unsigned int szget() { return sz; }
private:
unsigned int sz;
};(1)上面类定义有什么错误,请更改。(2)请用成员初始化(member initializer)方法改写构造函数:(3)char * hpstget()=0代表什么意思?
public:
unsigned int base(unsigned int size) {sz = size; return sz; }
~base() { }
virtual char * hpstget()=0;
unsigned int szget() { return sz; }
private:
unsigned int sz;
};(1)上面类定义有什么错误,请更改。(2)请用成员初始化(member initializer)方法改写构造函数:(3)char * hpstget()=0代表什么意思?
(2)base(unsigned int size):sz(size) {}
(3)char * hpstget()=0代表纯虚函数,需在派生类中实现,另拥有虚函数的base类不能实例化
class base{
public:
base(unsigned int size)
{
sz = size;
}
~base() { }
virtual char *hpstget()=0;
unsigned int szget() { return sz; }
private:
unsigned int sz;
};