糖果: Derived类通过私有继承的方式从基类Base继承而来, Base类包含公有成员函数work1()、work2(),在主函数中通过派生类Derived的对象调用基类函数work1( ) 糖果: [图片]
时间: 2024-02-20 13:00:21 浏览: 22
可以使用以下代码实现:
```
#include <iostream>
class Base {
public:
void work1() {
std::cout << "Base work1()" << std::endl;
}
void work2() {
std::cout << "Base work2()" << std::endl;
}
};
class Derived : private Base {
public:
void callWork1() {
work1();
}
};
int main() {
Derived d;
//d.work1(); // Error: 'work1' is a private member of 'Base'
d.callWork1(); // Output: Base work1()
//d.work2(); // Error: 'work2' is inaccessible due to private inheritance
return 0;
}
```
在Derived类中,通过私有继承方式从Base类继承而来的成员是私有的,所以在主函数中无法直接调用Base类的work1()函数。但是,可以在Derived类中定义一个公有成员函数callWork1(),在该函数中调用Base类的work1()函数。这样,在主函数中就可以通过Derived类的对象调用callWork1()函数来间接调用Base类的work1()函数。需要注意的是,私有继承方式会使得Base类的公有成员函数work2()变成Derived类的私有成员函数,无法在Derived类的外部访问。