30 lines
442 B
C++
30 lines
442 B
C++
/**
|
|
* @file derived_full.cpp
|
|
* @brief 完整示例！抽象类由派生类继承实现！
|
|
* @author 光城
|
|
* @version v1
|
|
* @date 2019-07-20
|
|
*/
|
|
|
|
#include <iostream>
|
|
using namespace std;
|
|
|
|
class Base {
|
|
int x;
|
|
|
|
public:
|
|
virtual void fun() = 0;
|
|
int getX() { return x; }
|
|
};
|
|
|
|
class Derived : public Base {
|
|
public:
|
|
void fun() { cout << "fun() called"; } // 实现了fun()函数
|
|
};
|
|
|
|
int main(void) {
|
|
Derived d;
|
|
d.fun();
|
|
return 0;
|
|
}
|