策略模式

#include <iostream>
#include <functional> 
?
void adcHurt()
{
    std::cout << "Adc Hurt" << std::endl;
}
?
void apcHurt()
{
    std::cout << "Apc Hurt" << std::endl;
}
?
//环境角色类， 使用传统的函数指针
class Soldier
{
public:
    typedef void (*Function)();
    Soldier(Function fun): m_fun(fun)
    {
    }
    void attack()
    {
        m_fun();
    }
private:
    Function m_fun;
};
?
//环境角色类， 使用std::function<>
class Mage
{
public:
    typedef std::function<void()> Function;
?
    Mage(Function fun): m_fun(fun)
    {
    }
    void attack()
    {
        m_fun();
    }
private:
    Function m_fun;
};
?
int main()
{
    Soldier* soldier = new Soldier(apcHurt);
    soldier->attack();
    delete soldier;
    soldier = nullptr;
    return 0;
}