this关键字的作用

public Employee(string name, string alias)
{
this.name = name;
this.alias = alias;
}

class Employee
{
private string strName;
private string strAlias;
public static int n = 3;

public Employee(string strName)
{
this.strName = strName;
}

public Employee(string strName,string strAlias)
:this(strName)
{
this.strAlias = strAlias;
}

public void PrintEployee()
{
Console.WriteLine("首先是：被相似名称隐藏的成员：");
Console.WriteLine("Name:{0}\nAlias:{1}", strName, strAlias);
Console.ReadLine();

Console.WriteLine("下面是传递this实例：");
Console.WriteLine("Tax:{0}", Tax.CallTax(this));
Console.ReadLine();
}

public int TestN
{
get { return n; }
set { n = value; }
}
}

class Tax
{
public static int CallTax(Employee e)
{
return 1000*e.TestN;
}
}
class Program
{
static void Main(string[] args)
{
Employee employee = new Employee("张三", "王二");
employee.PrintEployee();
}
}