分类10 用类来实现

Command

execute

Interpreter 解释器模式

public class Invoker {   private Command command = null;   public void setCommand(Command command) {       this.command = command;   }  public void runCommand() {           command.execute();      }}

适合文法简单的解析场景解析性能不高

public class Client {   public void assemble() {          Receiver receiver = new Receiver();     Command command = new ConcreteCommand(receiver);           Invoker invoker = new Invoker();     invoker.setCommand(command);   }}

NonTerminalExpression

childExpressions

interpret(Context ctx)

Command 命令模式

MVC 里的 Action 就是 Command

分别创建：命令、调用方、接收方

AbsExpression

一个遥控电视的例子http://www.cnblogs.com/devinzhang/archive/2012/01/06/2315235.html

Invoker

Context

geetInfoToInterpret

Receiver

action

public class ConcreteCommand implements Command {   private Receiver receiver = null;   private String state;   public ConcreteCommand(Receiver receiver){     this.receiver = receiver;      }   public void execute() {           receiver.action();      }}

TerminalExpression

ConcreteCommand

receiver