命令模式

来源：互联网发布：rf优化是什么编辑：程序博客网时间：2024/06/10 02:10

命令模式：将一个请求封装为一个对象，从而使你可用不同的请求对客户进行参数化；对请求排队或者记录请求日志，以及支持可撤消的操作。

    class Program    {        static void Main(string[] args)        {            Receiver r = new Receiver();            Command c = new ConcreteCommand(r);            Invoker i = new Invoker();            // Set and execute command             i.SetCommand(c);            i.ExecuteCommand();            Console.Read();        }    }    abstract class Command    {        protected Receiver receiver;        public Command(Receiver receiver)        {            this.receiver = receiver;        }        abstract public void Execute();    }    class ConcreteCommand : Command    {        public ConcreteCommand(Receiver receiver)            :          base(receiver) { }        public override void Execute()        {            receiver.Action();        }    }    class Receiver    {        public void Action()        {            Console.WriteLine("执行请求！");        }    }    class Invoker    {        private Command command;        public void SetCommand(Command command)        {            this.command = command;        }        public void ExecuteCommand()        {            command.Execute();        }    }

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