Chain Of Responsibility 避免把一个请求的发送者和请求者的接收者进行耦合，这个模式要求多个对象都有机会处理这个请求...

客户代码 1            Console.WriteLine( root.Responsible.Name );2            Console.WriteLine( leafoneleft.Responsible.Name );3            Console.WriteLine( leafoneright.Responsible.Name );4            Console.WriteLine( leaftwoleft.Responsible.Name );5            Console.WriteLine( leaftworight.Responsible.Name );6            Console.ReadLine(); MachineComponent  1using System; 2 3namespace Gof.Test.ChaninOfResponsibility 4{ 5    public abstract class MachineComponent 6    { 7        public MachineComponent(MachineComponent parent) 8        { 9            _parent = parent;            10        }11        public MachineComponent(MachineComponent parent,Engineer responsible):this(parent)12        {13            _responsible = responsible;14        }15        public virtual MachineComponent Parent16        {17            get18            {19                return _parent;20            }21        }private MachineComponent _parent;22        public virtual Engineer Responsible23        {24            get25            {26                if( _responsible != null)27                {28                    return _responsible;29                }30                return Parent.Responsible;31            } 32        }private Engineer _responsible;33    }34} MachineComposite  1using System; 2 3namespace Gof.Test.ChaninOfResponsibility 4{ 5    public class MachineComposite:MachineComponent 6    { 7        public MachineComposite(MachineComponent parent):base(parent) 8        {} 9        public MachineComposite(MachineComponent parent,Engineer responsible):base(parent,responsible)10        {}11    }12} Machine  1using System; 2 3namespace Gof.Test.ChaninOfResponsibility 4{ 5    public class Machine:MachineComponent 6    { 7        public Machine(MachineComponent parent):base(parent) 8        { } 9        public Machine(MachineComponent parent,Engineer responsible):base(parent,responsible)10        { }11    }12} MachineRoot  1using System; 2 3namespace Gof.Test.ChaninOfResponsibility 4{ 5    public class MachineRoot:MachineComposite 6    { 7        public MachineRoot(Engineer responsible):base(null,responsible) 8        { 9        }10        public override MachineComponent Parent11        {12            get13            {14                throw new Exception("根节点没有上一级");15            }16        }1718    }19} Engineer  1using System; 2 3namespace Gof.Test.ChaninOfResponsibility 4{ 5    public class Engineer 6    { 7        public Engineer(string name) 8        { 9            _name = name;10        }11        public string Name12        {13            get14            {15                return _name;16            }17            set18            {19                _name = value;20            }21        }private string _name = string.Empty; 22    }23}

转载于:https://www.cnblogs.com/nanshouyong326/archive/2007/01/08/614750.html

相关资源：数据结构—成绩单生成器