C++设计模式_命令模式练习代码，自己写的简单的一个代码，留着以后备忘。
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#define _CRT_SECURE_NO_WARNINGS #include <iostream> #include <list> using namespace std; // 烤串师傅 class Cooker { public: void makeChicken() { cout << "烤串师傅 烤了 鸡肉" << endl; } void makeChuaner() { cout << " 烤串师傅 烤了 羊肉串 " << endl; } }; //抽象的命令 class Command { public: Command(Cooker *cooker) { this->cooker = cooker; } ~Command() { if (this->cooker != NULL) { delete cooker; } } //菜单的执行命令 virtual void execute() = 0; protected: Cooker* cooker; }; //具体的 羊肉串命令 class CommandChuaner:public Command { public: CommandChuaner(Cooker *cooker) : Command(cooker) {} //菜单的执行命令 virtual void execute() { this->cooker->makeChuaner(); } }; //具体的 鸡肉命令 class CommandChicken :public Command { public: CommandChicken(Cooker *cooker) : Command(cooker) {} //菜单的执行命令 virtual void execute() { this->cooker->makeChicken(); } }; class Waitress { public: Waitress() { cmd_list.clear(); } //添加命令的方法 void setCmd(Command * cmd) { this->cmd_list.push_back(cmd); } //批量执行命令 void notify() { for (list<Command* >::iterator it = cmd_list.begin(); it != cmd_list.end(); it++) { (*it)->execute(); } } private: list<Command* > cmd_list; }; int main(void) { Waitress *mm = new Waitress; //点餐 Command *cmdChuaner = new CommandChuaner(new Cooker); Command *cmdChicken = new CommandChicken(new Cooker); mm->setCmd(cmdChicken); mm->setCmd(cmdChuaner); //下单 mm->notify(); delete mm; return 0; } |
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