跟着书写了些代码，前面还有company的类，其实通俗来讲就是两个company和employee类的互相配合调用，还有重构里的封装！总体对asp.net的潜感不错！

开发环境：microsoft visual studio2005

熟悉环境很重要，然后装个几G的MSDN帮助文档，不懂马上查看和上微软技术看看！

以下为不完整代码

using System;
using System.Collections.Generic;
using System.Text;
//类Employee的应用
namespace Chapter04
{
class Employee
{

private string strID;

public string ID
{
get { return strID; }
set { strID = value; }
}

private Company Company;

public Company Company
{
get { return company; }
set { company = value; }
}

public Employee(string name, string id)
{
this.strName = name;
this.strID = id;
}

public void ChangeCompany(Company newCompany)
{
this.Company = newCompany;

}

public override string ToString()
{
return this.Name + "is a member of" + this.Company.Name;

}
static void Main(string[] args)
{
Employee Yanni=new Employee("杨霓","qq:46007728");

Company Huashang = new Company("华商");

Company nhs8 = new Company("nhs8");

Yanni.Company = Huashang;

Console.WriteLine(Yanni.ToString());

Yanni.ChangeCompany(Huashang);

Console.WriteLine(Yanni.ToString());

}
}

}