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运用虚拟/抽象/接口实现多态的例子(三)--接口类.
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下一篇 2008-05-30 10:25:46
/ 个人分类:c#
范例一:
using System;
interface Employee
{
void Startwork();
}
class Manager:Employee
{
string _name;
public Manager(string name)
{
_name=name;
}
public void Startwork()
{
Console.WriteLine(_name + " assign somebody to work");
}
}
class Sellor:Employee
{
string _name;
public Sellor(string name)
{
_name=name;
}
public void Startwork()
{
Console.WriteLine(_name + " sell the product");
}
}
class Test
{
static void Main()
{
Employee aa=new Manager("zhang san");
Employee bb=new Sellor("li si ");
aa.Startwork();
bb.Startwork();
}
}
结果:
zhang san assign somebody to work
li si sell the product
可以看出是将类Manager,Sellor的共同方法集中起来,组成一个新的接口(类似于类).这个接口有方法Startwork(), 此例子中可以不用接口访问, 也可以达到同样效果. 如下例子:
范例二:
using System;
class Manager
{
string _name;
public Manager(string name)
{
_name=name;
}
public void Startwork()
{
Console.WriteLine(_name + " assign somebody to work");
}
}
class Sellor
{
string _name;
public Sellor(string name)
{
_name=name;
}
public void Startwork()
{
Console.WriteLine(_name + " sell the product");
}
}
class Test
{
static void Main()
{
Manager aa=new Manager("zhang san");
Sellor bb=new Sellor("li si ");
aa.Startwork();
bb.Startwork();
}
}
结果:
zhang san assign somebody to work
li si sell the product
可以看出不用接口也可以达到效果, 但这个就不是多态了, 因为你无法用一个类集合来表示他们,如上例子可以用employee[]来表示他们.
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