摘要：
意图：提供一个通过拷贝已存在对象进行新对象创建的接口。class Prototype{public: Prototype() {} virtual ~Prototype() {} virtual Prototype* Clone() = 0;};class ConcretePrototype: public Prototype{public: ConcretePrototype(const string& str) { this->content = str; } ConcretePrototype(const Concret... 阅读全文
