人生是一场不能存盘的RPG,我只能尽量多搞几个Screenshot

http://ajax.asp.net/about/default.aspx?tabid=47

1.ASP.NET 2.0 AJAX Extensions and Document, Source Code
扩展ASP.NET 2.0 server-side从而提供了和ASP.NET兼容的AJAX编程模型

2.Microsoft AJAX Library
JaveScript library

3.ASP.NET AJAX Control Toolkit
ASP.NET AJAX control SDK以及sample
在线演示http://ajax.asp.net/ajaxtoolkit/

4.ASP.NET Futures

5.Sample Applications

比如:
TemplateContorl实现了INameContainer,其派生类UserContorl又实现INameContainer.

INameContainer仅仅是一个marker interface,其用途也就是看一个class是否实现了此interface,
UserContorl就算不实现INameContainer,仍然可以cast为INameContainer.

又如:
StringCollection,实现了IList, ICollection, IEnumerable,而IList实现了ICollection, IEnumerable,
ICollection又实现了IEnumerable.
其目的在于可在StringCollection中显式实现这些Interface,对一些方法的参数类型进行强化:
public int IndexOf(string value);
int IList.IndexOf(object value)
{
return this.IndexOf((string) value);
}
以便在编译阶段发现问题.

考察如下代码:
interface ITest
{
void ShowMsg();
}

interface IITest:ITest
{
}

public class TestA : ITest
{
public void ShowMsg()
{

Console.WriteLine(”TestA:”);

}

void ITest.ShowMsg()
{

Console.WriteLine(”TestA:ITest”);

}
}
public class TestB :TestA, ITest
{
public void ShowMsg() //Complier warning,hides inherited member ‘TestA.ShowMsg()’
{
Console.WriteLine(”TestB:”);
}
void ITest.ShowMsg()
{

Console.WriteLine(”TestB:ITest”);
}
}

TestB test = new TestB();
test.ShowMsg();
(test as TestA).ShowMsg();

ITest itest = new TestB();
itest.ShowMsg();
输出:
TestB:
TestA:
TestB:ITest
如果去掉TestB对ITest的实现, (test as ITest).ShowMsg();将输出TestB:

戍(树), 人+戈,守边

戎(荣), 十为甲+戈,本意为兵器的总合,后泛指军事.弓、殳、矛、戈、戟为古代五戎

戊(勿), 天干第5,属中央,戊戌维新,指1898年(农历戊戌年).

戌(虚), 地支第11,十二生肖属狗,指晚上七点钟至九点钟