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public class Socket { private PowerWire _powerWire; private EthernetWire _ethernetWire; private GroundWire _groundWire; public Socket(PowerWire powerWire, EthernetWire ethernetWire, GroundWire groundWire) { _powerWire = powerWire; _ethernetWire = ethernetWire; _groundWire = groundWire; } ... }
ăăăăćĺžăŽăšăăăźăŻčŚäťśă§ăăăăăšăŚăŽă¤ăłăżăźăăăă˘ăŚăăŹăăăŽă¤ăłăżăźăăăăŻă¤ă¤ăć°ăăć¨ćşăŤĺ¤ć´ăăăă¨ă§ăă ä¸čŹăŤăăăšăŚăŽă˝ăąăăăŻĺćăŤă¤ăłăżăźăăăă˝ăąăăă§ăăăăăăăăšăŚăĺ庌ĺ¤ć´ăăĺż
čŚăăăăžăăă ă¤ăłăżăźăăăăŤä˝żç¨ăăăăłăłăťăłăăŽć°ăŻăăăšăŚăŽăłăłăťăłăăŽć°ăăăć°ĺĺ°ăŞăăăăä˝ćĽéăŻăŻăăăŤĺ°ăŞăăŞăăžăă
public class Socket { private PowerWire _powerWire; private SuperEnthernetWire _superEnthernetWire; private GroundWire _groundWire; public Socket(PowerWire powerWire, SuperEthernetWire superEthernetWire, GroundWire groundWare) { _powerWire = powerWire; _superEnthernetWire = superEnthernetWire; _groundWare = groundWare; } ... }
ăăšăŚăŽĺ ´ĺăŤăăăŚăăăă¤ăăŽĺŽĺ
¨ăŤçĄé˘äżăŞčˇĺă1ă¤ăŽăŞăă¸ă§ăŻăăŤä¸ĺşŚăŤçľĺăăăă¨ăăäşĺŽăŤăăăăžăŁăăä¸čŚăŞéăŽä˝ćĽăčĄăăăžăăă ăăăŚăăăăăŽçžŠĺăŤăŻăăăăăĺ¤ć´ăŽççąăăăăžăă
ăăŽăăăŞĺéĄăĺéżăăăăăŤăăłăłăťăłăăŻăäşăăŤçŹçŤăă2ă¤ăŽé¨ĺďźéťć°ăłăłăťăłăă¨ă¤ăłăżăźăăăăłăłăťăłăďźăŤĺĺ˛ăăĺż
čŚăăăăžăăă
public PowerSocket { private PowerWire _powerWire; private GroundWare _groundWare; public PowerSocket(PowerWire powerWire, GroundWare groundWare) { _powerWire = powerWire; _groundWare = groundWare; } ... } public class EthernetSocket { private SuperEthernetWire _superEthernetWire; public EthernetSocket (SuperEthernetWire _superEthernetWire) { _superEthernetWire = superEthernetWire; } ... }
ăăăŚăĺŽéăŤéťć°ă¨ă¤ăłăżăźăăăăŽä¸ĄćšăŽăłăłăťăłăăĺż
čŚăŞĺ ´ĺăŻă
éç´ă使ç¨ă§ăăžăă
public PowerEthernetSocket { private PowerSocket _powerSocket; private EthernetSocket _ethernetSocket; public PowerEthernetSocket (PowerSocket powerSocket, EthernetSocket ethernetSocket) { _powerSocket = powerWire; _ethernetSocket = ethernetSocket; } ... }
ăŞăźăăłăŻăăźăşăŽĺĺ -ăŞăă¸ă§ăŻăăŻĺ¤ć´ăŽăăăŤéăăăăćĄĺźľăŽăăăŤéăăăŞăăă°ăŞăăžăăă
ĺ¸ĺ
ä¸ĺżé¨ăŽéčŚăŞć
ĺ ąăäşşă
ăŤçĽăăăăăăŤăćăĺżăă交塎çšăŤĺ¤§ăăŞăšăŻăŞăźăłăč¨ç˝Žăăăžăăă ăăžăăžăŞă˝ăźăšăăăŽăĄăăťăźă¸ăŽăăăšăă襨示ăăžăăă
public class Message { public string Text { get; set; } } public class BigDisplay { public void DisplayMessage(Message message) { PrintText(message.Text); } public void PrintText(string text) { ... } }
ăă°ăăăăŚăć°ăăăżă¤ăăŽăĄăăťăźă¸ă襨示ăăăžăă-ćĽäťăĺŤăăĄăăťăźă¸ă ăăăŚăçťé˘ä¸ăŽăăŽăăăŞăĄăăťăźă¸ăŤă¤ăăŚăŻăćĽäťă¨ăăăšăăŽä¸Ąćšă襨示ăăĺż
čŚăăăăžăăă ć´çˇ´ăŻăăžăăžăŞćšćłă§ĺŽčĄă§ăăžăă
1.ăăĄăăťăźă¸ăăŽăżă¤ăăăć´žçăăć°ăăăżă¤ăăä˝ćăăĺąć§ăćĽäťăăčż˝ĺ ăăŚăăĄăăťăźă¸ă襨示ăăćé ăĺ¤ć´ăăžăă
public class Message { public string Text { get; set; } } public class MessageWithDate : Message { public DateTime Date { get; set; } } ... public void DisplayMessage(Message message) { if (message is MessageWithDate) PrintText(message.Date + Message.Text) else PrintText(message.Text); }
ăăăăăăŽćšćłăŻăä˝ăăăŽĺ˝˘ă§ăĄăăťăźă¸ă襨示ăăăăšăŚăŽăżă¤ăăŽĺä˝ăĺ¤ć´ăăĺż
čŚăăăă¨ăăçšă§ćŞăă§ăă ăăăŚăĺ°ćĽăć°ăăçšĺĽăŞăżă¤ăăŽăĄăăťăźă¸ăăžă ăăĺ ´ĺăŻăăăšăŚăĺ庌ĺ¤ć´ăăĺż
čŚăăăăžăă
2.ădateăăăăăăŁăămessageăăżă¤ăăŤčż˝ĺ ăăăăăšăăŽĺ俥ćšćłăĺ¤ć´ăăŚă揥ăŽăăăŤăăžăă
public class Message { private string _text; public string Text { get { if(Date.HasValue) return Date.Value + _text; else return _text; } set { _text = value; } } public DateTime? Date { get; set; } }
ăăăăćĺăŤăăăŽăĄă˝ăăăŻăĄă¤ăłăŽăżă¤ăăĺ¤ć´ăăŚăăăŤĺä˝ăčż˝ĺ ăăĺż
čŚăăăă¨ăăçšă§ćŞăă§ăă 珏äşăŤăć°ăăăżă¤ăăŽăĄăăťăźă¸ă襨示ăăăĺ ´ĺăăăšăŚăŽăĄăăťăźă¸ăŤăŻăŞăĺĽăŽĺąć§ăä˝ćăăăłăźăăŤä¸čŚăŞăă§ăăŻăčż˝ĺ ăăĺż
čŚăăăăžăă 珏ä¸ăŤăćĽäťäťăăŽăĄăăťăźă¸ăŽĺ ´ĺăćĽäťăŞăă§ăĄăăťăźă¸ăăăšăăĺĺžăăćšćłăŻăăăžăăă ăăăŚăăăŽăăăŞăăźăşăŽĺ ´ĺ-ăĄăăťăźă¸ăŽăăăšăăé¸ćăăĺż
čŚăăăăžăă
3.ć°ăăăżă¤ăăăžăŁăăä˝ćăăăăĄăăťăźă¸ăçťé˘ăŤčĄ¨ç¤şăăăćšćłăĺ¤ć´ăăŞăăăăŤăăĄăăťăźă¸ăăăšăăŤćĽäťăăăăŤć¸ăčžźăżăžăă ăă ăăăĄăăťăźă¸ăăćĽäťăĺĺžăăă ăăŽĺ ´ćă§ăŻăćĺăŤăăŽăĄăăťăźă¸ăŤćĽäťăĺŤăžăăŚăăăăŠăăă確čŞăăŚăăăăĄăăťăźă¸ăăăšăăăĺé˘ăăĺż
čŚăăăăăăăăŽćšćłăŻä¸éŠĺă§ăă
éćžć§ă¨čżćĽć§ăŽĺĺăŤĺžăă¨ăăăăăŽĺéĄăăăšăŚĺéżăă4çŞçŽăŽćšćłăŤé˛ăăă¨ăă§ăăžăă
public class Message { public string Text { get; set; } public virtual string GetDisplayText() { return Text; } } public class MessageWithDate : Message { public DateTime Date { get; set; } public override string GetDisplayText() { return Date + Text; } } ... public void DisplayMessage(Message message) { PrintText(message.GetDisplayText()); }
ăăŽă˘ăăăźăă§ăŻăăăĄăăťăźă¸ăăŽĺşćŹăżă¤ăăĺ¤ć´ăăĺż
čŚăŻăăăžăă-
éăăăžăžăŤăŞăăžăă ĺćăŤăăăŽćŠč˝ăćĄĺźľăăăă¨ăă§ăăžăă ăăăŤăäťăŽă˘ăăăźăăŤĺşćăŽĺéĄăŻăăšăŚăŞăăŞăăžăă
ăŞăšăłă罎ćăŽĺĺ -ĺşćŹĺă使ç¨ăăé˘ć°ăŻăĺşćŹĺăŽăľăăżă¤ăăçĽăăŞăăŚă使ç¨ă§ăăĺż
čŚăăăăžăă
ăčŞčť˘čťăăżă¤ăăăăă°ăŠă ăŤčż˝ĺ ăăăăăă1ă¤ăŽăżă¤ăăăă˘ăăăăăčż˝ĺ ăăžăă ă˘ăăăăŻčŞčť˘čťăŽăăăŞăăŽă§ăăăăăă ăă§ăă ăăŽăăăăă¤ăŻăŻă˘ăăăăŽăăźăšăżă¤ăă¨ăăŚćéŠă§ăă ăăăŤč¨ăăăăăă°ăŠă ăŤăŻĺĽăŽăżă¤ăăŽăă˘ăăăăăăăăžăă-ăčŞčť˘čťăăŽăżă¤ăăŤçąćĽăăžăă
public class Bicycle { public int Location; public void Move (int distance) { ... } } public class MotorBicycle : Bicycle { public int Fuel; public override void Move(int distance) { if (fuel == 0) return; ... fuel = fuel â usedFuel; } }
ăăăăčŞčť˘čťă¨ćŻčźăăă¨ăă˘ăăăăŤăŻ1ă¤ăŽä¸ĺżŤăŞćŠč˝ăăăăžăăăŹă˝ăŞăłăăŞăăŞăă¨ăă˘ăăăăŻç§ťĺă§ăăŞăăŞăăžăă ăăăŚăăăŽä¸ĺżŤăŞćŠč˝ăăłăźăă§čć
Žăăĺż
čŚăăăăžăăă 彟ăăŻăăăčć
ŽăŤĺ
ĽăăžăăăăăăăéčŚčŚăăžăăă§ăă-ăăŽăăăăăăă税éĄăŽçšĺŽăŽćŠč˝ăčć
ŽăăăăăŤăć´žçĺăăăăžăă
ă˘ăăăăŻčŞčť˘čťăăăéŤéă§ăăăăăĺŻč˝ă§ăăă°ăčŞčť˘čťă䝼ĺăŤä˝żç¨ăăăŚăăăăă°ăŠă ă§ä˝żç¨ăăĺ§ăăžăăă ăăăăăăć´ăăćĽăăăă°ăŠă ăŻtightč˝ăăžăăă ă¨ăŠăźăŽć¤ç´˘ăŻéˇăăŚčŚçă§ăăă ĺéĄăŻĺŽćçăă¤ăŠăłăă ăŤçš°ăčżăăăžăăă ç ăăŹĺ¤ăŽčŞŹćăççĽăăăăăŤăăšăŚăŽç
ć°ăŽçŻäşş-ăľă¤ăŻăŞăšăăäşăăŤé˘ăă2ă¤ăŽăă¤ăłăéă§ç§ťĺăăăćšćłăŤçŽăĺăăžăă
public void LongJourney (int to, Biker biker, Bicycle bicycle) { while(bicycle.location < to) { int distance = to - bicycle.location; if (distance > 1000) distance = 1000; bicycle.move(distance); biker.sleep(); } }
ăŹă˝ăŞăłăä¸čśłăăŚăăă˘ăăăăčŞčť˘čťă§ăŻăŞăăĄă˝ăăăŤčť˘éăăăă¨ăăăŽăăăŞă˘ăŻăˇă§ăłăć示çăŤĺźăłĺşăăăĺ ´ĺă§ăăă˘ăăăăăťăłăăĄăźăăŤăé˛ăăŞăăŁăăăăć°¸é ăŤăăłă°ăăžăă ăăŽĺéĄă俎ćŁăăăăăŤăăăĄăăăăăăăă¨ăă§ăăžăďź
public void LongJourney (int to, Biker biker, Bicycle bicycle) { while(bicycle.location < to) { int distance = to - bicycle.location; if (distance > 1000) distance = 1000; if (bicycle is MotorBicycle && bicycle.Fuel == 0) FillFuel((MotorBicycle)bicycle); bicycle.move(distance); biker.sleep(); } } public void FillFuel(MotorBicycle motorBicycle) { ... }
ăăăăăăŽăăăŞĺ¤ć´ăĺ°ĺ
ĽăăăŤăŻăĺ¤ć°ăŽćé ăĺ¤ć´ăăĺż
čŚăăăăžăăăăăŻă珏ä¸ăŤăéˇăéă珏äşăŤăĺżăăăă¨ăă§ăăăăŽăăăŞĺżĺ´ăĺĽăŽă¨ăăăŠăăăŽăŞăĺéĄăŤă¤ăŞăăă¨ăăäşĺŽăŤćşăĄăŚăăžăă ăăăŤăăăŽăăăŞćĄäťśăŽčż˝ĺ ăŻăć˝čąĄĺăŽăŞăźăŻăŤăŞăăžăă ăăăŚăčĄĺăŤĺ˝ąéżăä¸ăăäťăŽčŚĺ ăĺşçžăăĺ ´ĺăăăăăŽĺ°éŁăŻăăšăŚĺĺ˘ăăžăă
ĺŽéăćĺăŽĺéĄăŻăĺ¤é¨ăŽéĄäźźçšăăăšăŚăăăŤăé˘ăăăăă˘ăăăăŻä¸ç¨ŽăŽčŞčť˘čťă§ăŻăŞăă¨ăăäşĺŽăŤăăăžăă ăăăăŁăŚăăăăăĺ
ąéăŽĺćŻăŤćăĄčžźăăă¨ăăŚăăä˝ăčŻăçľćăŤăŻăŞăăžăăă ă˘ăăăăŤă¤ăăŚăŻăčŞčť˘čťăăçŹçŤăăĺĽăŽăżă¤ăăä˝ćăăĺż
čŚăŞăăšăŚăŽćé ă§ăăăčć
Žăăĺż
čŚăăăăžăăă
ă¤ăłăżăźăă§ă¤ăšĺé˘ăŽĺĺ -ăŻăŠă¤ă˘ăłăăŻă使ç¨ăăŞăćšćłăŤäžĺăăăšăă§ăŻăăăžăăă
ăăçžĺŽçăŤăăăăăŤă1ă¤ăŽčĺłćˇąăĺä˝ăčż˝ĺ ăăăžăăă äşşăé衯ä¸ăŽééăŁăĺ ´ćăŤçžăăĺ ´ĺă彟ăĺć˘ăăŚăăčťä¸ĄăŻĺć˘ăăéł´ăéżăăŻăă§ăă ăăăčĄăăăăŤăăĄă˝ăăăĺŽčŁ
ăăăžăăă
public void CheckIntersect(Car car, People[] people) { ... if (Intersect(car, people)) { car.Stop(); car.Beep(); } } public bool Intersect(Car car, People[] people) { ... }
ĺä˝ăăă§ăăŻăăăčŞčť˘čťăăˇăšăă ăŤçžăăŚéŤéé衯ăŤčľ°ăŁăçˇăŤăśă¤ăăăžă§ăăăšăŚăé 調ă§ăăă čĄçŞăă§ăăŻă¨čŞĺĺć˘ăŻčťăŤĺŻžăăŚăŽăżčĄăăăăăăăăăŻéŠăăă¨ă§ăŻăăăžăăă
ćĺăŽăŻăŹă¤ă¸ăźăŞă˘ă¤ăă˘ăŻăčŞčť˘čťăăăăˇăłăăżă¤ăăŽć´žççŠăŤăăăă¨ăăéĄćă§ăăĺŻč˝ć§ăăăăžăă çľĺąăăăčŚăă¨ăćé ăŻčŞčť˘čťăŽăăăŤăăˇăłăŽă˘ăŻăˇă§ăłăŽăżă使ç¨ăăćŞăăă¨ăŻä˝ă辡ăăăžăăă ăăăăăăăŻăăŽćšćłă§ăŽăżă§ăă ăăŽăăăŞĺĽĺŚăŞć´žçĺăăăăˇăłĺşćăŽăăŽă使ç¨ăăäťăŽăăăˇăźă¸ăŁăŤć¸Ąăăăă¨ăăăŽăăăŞăăăˇăźă¸ăŁăŻĺż
çśçăŤĺŁăăžăă
2çŞçŽăŽăŻăŹă¤ă¸ăźăŞă˘ă¤ăă˘ăŻăčŞčť˘čťă¨äşşă¨ăŽčĄçŞăăă§ăăŻăăăăăŽĺĽăŽćé ăä˝ćăăăă¨ă§ăă ăăăăăăŽĺžăăăšăŚăŽăă¸ăăŻăč¤čŁ˝ăăăăă¨ăăăăăžăă ăăăŤăć°ăăčťä¸Ąăă¨ăŤăăăŤăăăˇăźă¸ăŁăä˝ćăăĺż
čŚăăăăžăă ăăăŻăžăŁăăćčťć§ăăăăžăăă
ăăăăčĄçŞăă§ăăŻćé ă§čťä¸Ąăćă¤2ă¤ăŽă˘ăŻăˇă§ăłăŽăżă使ç¨ăăĺ ´ĺăçšĺŽăŽăżă¤ăăăĄă˝ăăăŤć¸ĄăăŽăŻăŞăă§ăăďź
ăăŽăĄă˝ăăă§ä˝żç¨ă§ăăăżă¤ăăŤćşć ăăĺż
čŚăăăăłăłăăŠăŻăăĺŽçžŠăăăăšăŚăŽăăźăŻăŤăŤĺŽčŁ
ă§ăăžăă
public interface IVehicle { ... void Stop(); void Beep(); } public class Car : IVehicle { ... } public class Bycycle : IVehicle { ... } public void CheckIntersect(IVehicle vehicle, People[] peoples) { ... if (Intersect(vehicle, peoples)) { vehicle.Stop(); vehicle.Beep(); } } public bool Intersect(IVehicle vehicle, People[] people) { ... }
揥ăŤăăăŽćšćłă§ăŻăć˘ĺăŽăżă¤ăăŽčťä¸Ąă¨ăĺĽç´ćĄäťśăŤĺžăŁăŚĺ°ćĽçťĺ ´ăăăżă¤ăăŽčťä¸Ąă蝢éă§ăăžăă
äžĺé˘äżăŽé蝢ăŽĺĺ -ć˝čąĄĺăŻčŠłç´°ăŤäžĺăăšăă§ăŻăăăžăăă 芳細ăŻć˝čąĄĺăŤäžĺăăĺż
čŚăăăăžăă
ç§ăăĄăŽčĄăŤăŻăăĽăźăšéçĽăˇăšăă ăăăăžăă ăˇăšăă ăŻéčŚăŞăăĽăźăšăĺ俥ăăé˝ĺ¸ăŽăšăăźăŤăźăˇăšăă ăäťăăŚăăăăćžéăăžăă
public class NotifySystem { private SpeakerSystem _speakerSystem = new SpeakerSystem(); public void NotifyOnWarning(string message) { _speakerSystem.Play(message); } }
ăăšăŚćŁĺ¸¸ăŤĺä˝ăăžăăăčŚäťśăŻĺ¤ć´ăăăĺžĺăăăăžăă çžĺ¨ăăšăăźăŤăźăˇăšăă ă§ăŻăŞăăćşĺ¸ŻéťčŠąăäťăăŚSMSă¨ăăŚăĄăăťăźă¸ăé俥ăăĺż
čŚăăăĺ ´ĺăăăăžăă ăăĄăăăSMSçľçąă§éçĽăĄăăťăźă¸ăé俥ăăăăăŽĺĽăŽăŞăă¸ă§ăŻăăä˝ćăăăă¨ăă§ăăžăăăăăŽăăăŤăŻăťă¨ăăŠăŽăă¸ăăŻăč¤čŁ˝ăăĺż
čŚăăăăžăă ăăăĺéżăăăăăŤăäťăŽćšćłă使ç¨ăăžăă éçĽăˇăšăă ăŻăĺĺă¨ăăŚăăĄăăťăźă¸ăŽčĄ¨ç¤şćšćłăć°ăŤăăžăăă ćăéčŚăŞăă¨ăŻăăăăé俥ăăăă¨ă§ăă ăăăăŁăŚăăăăčĄăăă¨ăă§ăăžăă
public class NotifySystem { private IMessageDelivery _messageDelivery; public public NotifySystem(IMessageDelivery messageDelivery) { _messageDelivery = messageDelivery; } public void NotifyOnWarning(string message) { _messageDelivery.SendMessage(message); } }
éçĽăˇăšăă ĺ
ă§ä˝żç¨ăăăĄăăťăźă¸é
俥ăˇăšăă ăŽă¤ăłăżăźăă§ă¤ăšăĺăŤçşčĄ¨ăăžăă ăăăŚăăăŽă¤ăłăżăźăă§ăźăšăŽĺŽčŁ
ăŻăéçĽăˇăšăă ă使ç¨ăăăäşşăŽčŠăŤăăăŁăŚăăžăă ĺŽéăç§ăăĄăŻćśč˛ťč
ăŤă¨ăŁăŚäžżĺŠăŞăăăŤćĄĺźľă§ăăăăăŞčĄĺăăżăźăłăä˝ćăăŚăăžăă
-ăăăŚăăăăăŽăăšăŚăŽĺĺăŤç
ŠăăăăăăŠăŽăăăŤăłăźăăć¸ăăă¨ăĺŻč˝ă§ăăăăďź
-ăăĄăăďź
ăăăă§ăĺăăăăŤćŠč˝ăăžăăďźă
-ĺ˝çśďź
-ă§ăŻăăŞăăăăăăšăŚăŽĺ°éŁăOOPăOODăŽĺ˝˘ă§ä˝żç¨ăăĺż
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