2008年4月1日

Tread Basics in C#-part one

摘要: 1.Thread classification in .Net Framework (CLR [Common Language Runtime] Thread support) i.System.Threading.Thread; ii.System.Diagnostics.ProcessThread ( present an Operating system Th... 阅读全文

posted @ 2008-04-01 10:13 飞天舞者 阅读(680) 评论(0) 推荐(0) 编辑

2008年3月31日

Event Mechanism in C#

摘要: 1.what is Event in C# simplely speaking,Event in C# is that as one instance does one behaviour, it will receive the message and then react with the message. 2.Event Happening&Re-acting Mechan... 阅读全文

posted @ 2008-03-31 16:02 飞天舞者 阅读(264) 评论(0) 推荐(0) 编辑

WCF Basics

摘要: 1.How to install WCF you can locate o website: http://blogs.msdn.com/madhuponduru/archive/2006/02/22/537622.aspx (it 's supported only by windowsxp,2000,server2003,vista) 2 What is WCF(Windo... 阅读全文

posted @ 2008-03-31 11:32 飞天舞者 阅读(337) 评论(0) 推荐(0) 编辑

如何给MSMQ发送Message (local computer | remote computer)

摘要: MSMQ可以使得在不同计算机的application之间异步或者同步通讯,而且MSMQ不要求message的发送或者接收端的网络状态,即可以是offline的状态,也可以是online,而MSMQ service会自动检测消息接受或者目标端的状态。MSMQ可以发送各种各样的消息,简单到普通文本,再到transactional message,或者是大型对象的message均可。本文介绍了几种不同类型的消息发送和接收。 阅读全文

posted @ 2008-03-31 09:31 飞天舞者 阅读(1197) 评论(0) 推荐(0) 编辑

basic concepts about MSMQ

摘要: MSMQ is a technichque through which the processes or computers in distributed systems communicate and exchange data asychrounsely and stablely. 2 the type of MSMQ: 1.Private MQ this kind of MSMQ can... 阅读全文

posted @ 2008-03-31 09:29 飞天舞者 阅读(256) 评论(0) 推荐(0) 编辑

2008年3月3日

difference between Truncate and Delete

摘要: 一、delete产生rollback,如果删除大数据量的表速度会很慢,同时会占用很多的rollback segments .truncate 是DDL操作,不产生rollback,速度快一些. Truncate table does not generate rollback information and redo records so it is much faster than d... 阅读全文

posted @ 2008-03-03 14:45 飞天舞者 阅读(266) 评论(0) 推荐(0) 编辑

2008年2月26日

Data Structure--Reverse LinkList

摘要: The original Linklist is as diagram shown: the codes are following node *reverse(node *head) { node *p1,*p2,*p3; if(head==NULL || head->next=-NULL) return head; //p1-->previou... 阅读全文

posted @ 2008-02-26 11:46 飞天舞者 阅读(375) 评论(0) 推荐(0) 编辑

OPP Basic--if virtual functions are so powerful, can we declare all member functions virtual?

摘要: A: Never. cos virtual functions has costs. Each object of virtual function must have a v table to manage them.Therefore using virtual function will need system costs. for only a very small class and ... 阅读全文

posted @ 2008-02-26 11:32 飞天舞者 阅读(182) 评论(0) 推荐(0) 编辑

OOP Bisic-desctructor can be virtual,while constructer can not? why?

摘要: A: virtual function uses virtual calling. virtual calling is a kind of operation mechanism which can run on the condition of part information being provided. it allows us to call a function that... 阅读全文

posted @ 2008-02-26 11:21 飞天舞者 阅读(235) 评论(0) 推荐(0) 编辑

OOP Basic--Constructor&Destructor

摘要: 本文深刻讲述了为什么有些基类的析构函数要设为virtual? 阅读全文

posted @ 2008-02-26 10:59 飞天舞者 阅读(351) 评论(0) 推荐(0) 编辑

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