M_K3 's Decorator Mode

Analysis: Abstract Components--concrete components--Abstract decoration Class _ Concrete decoration class

Related UML Diagrams:

Class sum:

Related code:

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Threading.Tasks;namespacem_k3{classProgram {Static voidMain (string[] args) {            Chari; Mobilephone Apple=NewApple (); Apple.            SendMessage (); Apple.            Call (); Console.WriteLine ("--------------------------------------"); Console.WriteLine ("Please select new function."); Console.WriteLine ("Bluetooth----1."); Console.WriteLine ("GPS----2."); Console.WriteLine ("Camera----3."); Console.WriteLine ("End----0."); Console.WriteLine ("---------------------------"); Console.WriteLine ("Input the choice:");  while(true) {i= (Char) Console.read (); if(i = ='0')                {                     Break; }                if(i = ='1') {Bluetooth Bluethooh=NewBluetooth (); Bluethooh.                    Decorate (apple); Bluethooh.                SendMessage (); }                if(i = ='2') {GPS GPS=NewGPS (); Gps.                    Decorate (apple); Gps.                SendMessage (); }                if(i = ='3') {Camera camera=NewCamera (); Camera.                    Decorate (apple); Camera.                SendMessage (); }            }        }    }}Abstract classmobilephone{ Publicmobilephone () {} Public Abstract voidSendMessage ();  Public Abstract voidCall ();  Public Abstract voidHello ();}classapple:mobilephone{ PublicApple ():Base(){ }     Public Override voidSendMessage () {Console.WriteLine ("now,send Message ... Hello,i am Apple."); }     Public Override voidCall () {Console.WriteLine ("now,calling ... Moxi moxi,i ' am Apple."); }     Public Override voidHello () {Console.WriteLine ("Hello,there is Apple."); }}classmi:mobilephone{ PublicMi ():Base() { }     Public Override voidSendMessage () {Console.WriteLine ("now,send Message ... Hello,i am Mi."); }     Public Override voidCall () {Console.WriteLine ("now,calling ... Moxi moxi,i ' am Mi."); }     Public Override voidHello () {Console.WriteLine ("Hello,there is Mi."); }}Abstract classadd:mobilephone{PrivateMobilephone _mobilephone;  PublicADD ():Base() { }     Public voiddecorate (mobilephone mobilephone) {_mobilephone=Mobilephone; }     Public Override voidSendMessage () {_mobilephone.    SendMessage (); }     Public Override voidCall () {_mobilephone.    Call (); }     Public Override voidHello () {_mobilephone.    Hello (); }}classbluetooth:add{ PublicBluetooth ():Base() { }     Public Override voidSendMessage () {Base.        Hello ();    Connect (); }     Public voidConnect () {Console.WriteLine ("initate Bluetooth of Phone,and connect ..."); }}classgps:add{ PublicGPS ():Base() { }     Public Override voidSendMessage () {Base.        Hello ();    Location (); }     Public voidLocation () {Console.WriteLine ("Now,open the GPS. Now,you is at ..."); }}classcamera:add{ PublicCamera ():Base() { }     Public Override voidSendMessage () {Base.        Hello ();    Cansee (); }     Public voidCansee () {Console.WriteLine ("Now,camera Open. Now,you can now open video calls ..."); }}

Operation Result:

Advantages:

1. Meet the OCP principle;

2. Can be arbitrarily combined, change the builder mode fixed combination situation, more flexibility.

M_k3 Decorator Mode