C#设计模式之【组合模式】

using System;using System.Collections.Generic;using System.Text;namespace 组合模式{ class Program { static void Main(string[] args) { ConcreteCompany root = new ConcreteCompany("北京总公司"); root.Add(new HRDepartment("总公司人力资源部")); root.Add(new FinanceDepartment("总公司财务部")); ConcreteCompany comp = new ConcreteCompany("上海华东分公司"); comp.Add(new HRDepartment("华东分公司人力资源部")); comp.Add(new FinanceDepartment("华东分公司财务部")); root.Add(comp); ConcreteCompany comp1 = new ConcreteCompany("南京办事处"); comp1.Add(new HRDepartment("南京办事处人力资源部")); comp1.Add(new FinanceDepartment("南京办事处财务部")); comp.Add(comp1); ConcreteCompany comp2 = new ConcreteCompany("杭州办事处"); comp2.Add(new HRDepartment("杭州办事处人力资源部")); comp2.Add(new FinanceDepartment("杭州办事处财务部")); comp.Add(comp2); Console.WriteLine("\n结构图："); root.Display(1); Console.WriteLine("\n职责："); root.LineOfDuty(); Console.Read(); } } abstract class Company { protected string name; public Company(string name) { this.name = name; } public abstract void Add(Company c);//增加 public abstract void Remove(Company c);//移除 public abstract void Display(int depth);//显示 public abstract void LineOfDuty();//履行职责 } class ConcreteCompany : Company { private List<Company> children = new List<Company>(); public ConcreteCompany(string name) : base(name) { } public override void Add(Company c) { children.Add(c); } public override void Remove(Company c) { children.Remove(c); } public override void Display(int depth) { Console.WriteLine(new String('-', depth) name); foreach (Company component in children) { component.Display(depth 2); } } //履行职责 public override void LineOfDuty() { foreach (Company component in children) { component.LineOfDuty(); } } } //人力资源部 class HRDepartment : Company { public HRDepartment(string name) : base(name) { } public override void Add(Company c) { } public override void Remove(Company c) { } public override void Display(int depth) { Console.WriteLine(new String('-', depth) name); } public override void LineOfDuty() { Console.WriteLine("{0} 员工招聘培训管理", name); } } //财务部 class FinanceDepartment : Company { public FinanceDepartment(string name) : base(name) { } public override void Add(Company c) { } public override void Remove(Company c) { } public override void Display(int depth) { Console.WriteLine(new String('-', depth) name); } public override void LineOfDuty() { Console.WriteLine("{0} 公司财务收支管理", name); } }}