namespace CompositePattern
{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
    }
}

using System;namespace CompositePattern
{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);}}
}

using System;namespace CompositePattern
{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);}}
}

using System;
using System.Collections.Generic;namespace CompositePattern
{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 compoent in children){compoent.Display(depth + 2);}}public override void LineOfDuty(){foreach (Company compoent in children){compoent.LineOfDuty();}}}
}

using System;namespace CompositePattern
{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("上海华东分公司人力资源部"));comp.Add(new FinanceDepartment("上海华东分公司财务部"));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"));root.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"));root.Add(comp2);Console.WriteLine("\n 结构图:");root.Display(1);Console.WriteLine("\n 职责:");root.LineOfDuty();Console.Read();}}
}