<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:copyright="http://blogs.law.harvard.edu/tech/rss" xmlns:image="http://purl.org/rss/1.0/modules/image/">
    <channel>
        <title>知秋一叶</title>
        <link>http://blog.joycode.com/qqchen/Default.aspx</link>
        <description>日出而作，日入而息，凿井而饮，耕田而食，帝力何有于我哉</description>
        <language>af</language>
        <copyright>qqchen</copyright>
        <managingEditor>qqchen79@yahoo.com</managingEditor>
        <generator>Joycode Version 1.0.0.0</generator>
        <image>
            <title>知秋一叶</title>
            <url>http://www.joycode.com/images/qqchen/gravatar.aspx</url>
            <link>http://blog.joycode.com/qqchen/Default.aspx</link>
            <width>77</width>
            <height>60</height>
        </image>
        <item>
            <title>Linq Resources</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2007/05/12/102400.aspx</link>
            <description>
Sacha Barber在CodeProject上的Linq文章（介绍了DLinq和Xlinq，并且一个Linq to Flickr/WPF的实现）: Part I, II and III。
Linq To LDAP，这里有关于IQueryable的比较详细的介绍。
Linq To Amazon
Linq To Google Images and Groups, 这篇是我的... (speaking shamelessly...)&lt;img src="http://blog.joycode.com/qqchen/aggbug/102400.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2007/05/12/102400.aspx</guid>
            <pubDate>Fri, 11 May 2007 17:24:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/102400.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2007/05/12/102400.aspx#feedback</comments>
            <slash:comments>16</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/102400.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/102400.aspx</trackback:ping>
        </item>
        <item>
            <title>Google Linq</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2007/05/01/102002.aspx</link>
            <description>打算编写一个基于Google Image的Linq实现，算是作为学习Linq，特别是IQueryable/Expression Tree的一个手段吧。
这里起一个头，希望实验过程中不会犯懒吧...&lt;img src="http://blog.joycode.com/qqchen/aggbug/102002.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2007/05/01/102002.aspx</guid>
            <pubDate>Mon, 30 Apr 2007 19:54:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/102002.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2007/05/01/102002.aspx#feedback</comments>
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            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/102002.aspx</trackback:ping>
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        <item>
            <title>C#3.0, Linq </title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2007/04/24/101656.aspx</link>
            <description>终于算是完成了从C# 1.0到C# 3.0的大跃进，开始看一些Linq方面的东西。当然最感兴趣的是C#底层是如何实现Linq的(Extension Methods, Lambda Expression, Expression Tree, yadayada...)，做了一些小实验：

Breaking Changes in Linq, Syntactic Sugar? Syntactic Heroin?
Ways to Skin a LINQ Query&lt;img src="http://blog.joycode.com/qqchen/aggbug/101656.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2007/04/24/101656.aspx</guid>
            <pubDate>Mon, 23 Apr 2007 20:25:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/101656.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2007/04/24/101656.aspx#feedback</comments>
            <slash:comments>15</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/101656.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/101656.aspx</trackback:ping>
        </item>
        <item>
            <title>胡汉三</title>
            <category>乱谈</category>
            <link>http://blog.joycode.com/qqchen/archive/2007/03/01/94014.aspx</link>
            <description>我胡汉三又回来了！不过识别两年，技术前沿生疏了许多。看思归的文章犹如读字母天书，WPF, WCP横行，幸好没有WTF。重回CSDN上混，我的账号居然还在。
现在的考量是把和.NET无关的东西放在我的blogspot英文博客上，这里放CSDN上遇到的问题和解决方法。是该重新收拾对.NET地了解了——“无他，但手熟尔”。&lt;img src="http://blog.joycode.com/qqchen/aggbug/94014.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2007/03/01/94014.aspx</guid>
            <pubDate>Wed, 28 Feb 2007 22:23:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/94014.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2007/03/01/94014.aspx#feedback</comments>
            <slash:comments>13</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/94014.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/94014.aspx</trackback:ping>
        </item>
        <item>
            <title>Moving out...</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2005/11/11/66837.aspx</link>
            <description>摘要：Having deserted this blog for more than a year, I finally decided to start blogging all over again. However, I also decided to move to a new space. Several reasons:

I would prefer blogging in English, just as a practise, a way to learn. 
I'm currently...[&lt;a href=/qqchen/archive/2005/11/11/66837.aspx&gt;阅读全文&lt;/a&gt;]&lt;img src="http://blog.joycode.com/qqchen/aggbug/66837.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2005/11/11/66837.aspx</guid>
            <pubDate>Thu, 10 Nov 2005 18:32:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/66837.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2005/11/11/66837.aspx#feedback</comments>
            <slash:comments>10</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/66837.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/66837.aspx</trackback:ping>
        </item>
        <item>
            <title>The Annoying Details</title>
            <category>乱谈</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/09/30/34716.aspx</link>
            <description>摘要：&amp;nbsp; A dedicated QA has been testing one of my application during the past few days. The good news is that fortunately, I'm still a qualified developer: the program design is solid, there&amp;nbsp;is no&amp;nbsp;design flaw and there is no data damage under exc...[&lt;a href=/qqchen/archive/2004/09/30/34716.aspx&gt;阅读全文&lt;/a&gt;]&lt;img src="http://blog.joycode.com/qqchen/aggbug/34716.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/09/30/34716.aspx</guid>
            <pubDate>Thu, 30 Sep 2004 03:22:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/34716.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/09/30/34716.aspx#feedback</comments>
            <slash:comments>9</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/34716.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/34716.aspx</trackback:ping>
        </item>
        <item>
            <title>Weak Delegate</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/09/22/34186.aspx</link>
            <description>摘要：&amp;nbsp; I have been thinking about the notion of &amp;#8220;Weak Delegate&amp;#8221; for a long time. For those who don't want to remove (-=) the delegate everytime, here is a thorough description about the potential memory leak problem and&amp;nbsp;the solution and s...[&lt;a href=/qqchen/archive/2004/09/22/34186.aspx&gt;阅读全文&lt;/a&gt;]&lt;img src="http://blog.joycode.com/qqchen/aggbug/34186.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/09/22/34186.aspx</guid>
            <pubDate>Tue, 21 Sep 2004 19:59:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/34186.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/09/22/34186.aspx#feedback</comments>
            <slash:comments>11</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/34186.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/34186.aspx</trackback:ping>
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        <item>
            <title>C# Const Correctness</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/09/19/33967.aspx</link>
            <description>摘要：&amp;nbsp; A question pops up from the forum regarding the const correctness in C++: &amp;#8220;Why don't we have it in C#?&amp;#8221;&amp;nbsp; In C++, if a method is declared like this:&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;...[&lt;a href=/qqchen/archive/2004/09/19/33967.aspx&gt;阅读全文&lt;/a&gt;]&lt;img src="http://blog.joycode.com/qqchen/aggbug/33967.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/09/19/33967.aspx</guid>
            <pubDate>Sun, 19 Sep 2004 01:29:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/33967.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/09/19/33967.aspx#feedback</comments>
            <slash:comments>10</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/33967.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/33967.aspx</trackback:ping>
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        <item>
            <title>Photos of Washington State</title>
            <category>乱谈</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/09/12/33223.aspx</link>
            <description>Some pictures I took during the trip to Washington state.&lt;img src="http://blog.joycode.com/qqchen/aggbug/33223.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/09/12/33223.aspx</guid>
            <pubDate>Sun, 12 Sep 2004 02:16:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/33223.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/09/12/33223.aspx#feedback</comments>
            <slash:comments>9</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/33223.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/33223.aspx</trackback:ping>
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        <item>
            <title>More on "More on Strings"</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/08/23/31344.aspx</link>
            <description>摘要：贴了关于.NET String Immutable和Implementaion的blog，收到下面两个回复：

对于定义如 public void xx(string yy);的函数,传进去的yy的值是改不了的. 下面的程序展示了如何在Native函数中修改字符串参数的值：&amp;nbsp;&amp;nbsp;&amp;nbsp; //Native.cpp: the exported native dll function&amp;nbsp;&amp;nbsp;&amp;nbsp; extern "C" _declspec(dllexport) ...[&lt;a href=/qqchen/archive/2004/08/23/31344.aspx&gt;阅读全文&lt;/a&gt;]&lt;img src="http://blog.joycode.com/qqchen/aggbug/31344.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/08/23/31344.aspx</guid>
            <pubDate>Sun, 22 Aug 2004 20:37:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/31344.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/08/23/31344.aspx#feedback</comments>
            <slash:comments>17</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/31344.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/31344.aspx</trackback:ping>
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        <item>
            <title>More On Strings: The Implementation</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/08/21/31217.aspx</link>
            <description>摘要：&amp;nbsp; 毫无疑问：String是引用类型。另一方面，String和int (Int32), Single (float)一样都是.NET的Primitive类型，CLR完全了解String对象的内部构造，并且有内建的用于String操作的指令(ldstr)。String的源代码不是用.NET语言/C#实现的，而是在CLR代码当中。在SSCLI的代码中Object.H里面可以找到下面的结构：&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;n...[&lt;a href=/qqchen/archive/2004/08/21/31217.aspx&gt;阅读全文&lt;/a&gt;]&lt;img src="http://blog.joycode.com/qqchen/aggbug/31217.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/08/21/31217.aspx</guid>
            <pubDate>Fri, 20 Aug 2004 21:24:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/31217.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/08/21/31217.aspx#feedback</comments>
            <slash:comments>10</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/31217.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/31217.aspx</trackback:ping>
        </item>
        <item>
            <title>Why are strings immutable?</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/08/21/31216.aspx</link>
            <description>摘要：&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;一直都想当然的接受了&amp;#8220;strings are immutable&amp;#8221;的事实，倒是没有仔细深入地想过原因。Google了一下，也没有找到满意的答案。我觉得大概有下面这些原因：

&amp;nbsp;避免字符串拷贝：如果String的内容可以改变，那么多个对象最好不要保存同一个字符串的引用，否则其中一个改变了String的内容就可能造成程序错误。这在多线程的环境下尤其重要，如果String不是immutable，那么它的所有编辑成员函数(App...[&lt;a href=/qqchen/archive/2004/08/21/31216.aspx&gt;阅读全文&lt;/a&gt;]&lt;img src="http://blog.joycode.com/qqchen/aggbug/31216.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/08/21/31216.aspx</guid>
            <pubDate>Fri, 20 Aug 2004 20:49:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/31216.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/08/21/31216.aspx#feedback</comments>
            <slash:comments>11</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/31216.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/31216.aspx</trackback:ping>
        </item>
        <item>
            <title>Google Special Search</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/08/04/29514.aspx</link>
            <description>无意中发现Google针对几个Term的特殊搜索，包括Microsoft、Apple、BSD和Linux。
查找Microsoft相关内容的时候msdn，gotdotnet等等网站的Page Ranking会被提高，这样更容易找到相关的信息。以后查找东西的时候就不用加上MSDN或者site:msdn.microsoft.com做关键字了。:)
上帝说的，有问题，找GOOGLE !!&lt;img src="http://blog.joycode.com/qqchen/aggbug/29514.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/08/04/29514.aspx</guid>
            <pubDate>Wed, 04 Aug 2004 03:55:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/29514.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/08/04/29514.aspx#feedback</comments>
            <slash:comments>16</slash:comments>
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            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/29514.aspx</trackback:ping>
        </item>
        <item>
            <title>Structured Storage</title>
            <category>.NET</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/08/04/29513.aspx</link>
            <description>摘要：&amp;nbsp; 为回答一个CSDN上的问题Google了半天，居然没能找到一个像样的C#访问Structure Storage的例子。没办法，自己动手丰衣足食了。:) 
&amp;nbsp; 用C#作Structure Storage最大的麻烦是无数的COM Interface和API调用，实在没有心情把一堆COM接口函数都写出来了，只写了用到的几个: StgOpenStorageEx、IPropertySetStorage::Open、IPropertyStorage::ReadMultiple，而且功能也不全...[&lt;a href=/qqchen/archive/2004/08/04/29513.aspx&gt;阅读全文&lt;/a&gt;]&lt;img src="http://blog.joycode.com/qqchen/aggbug/29513.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/08/04/29513.aspx</guid>
            <pubDate>Wed, 04 Aug 2004 03:44:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/29513.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/08/04/29513.aspx#feedback</comments>
            <slash:comments>18</slash:comments>
            <wfw:commentRss>http://blog.joycode.com/qqchen/comments/commentRss/29513.aspx</wfw:commentRss>
            <trackback:ping>http://blog.joycode.com/qqchen/services/trackbacks/29513.aspx</trackback:ping>
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        <item>
            <title>2G email account from MSN</title>
            <category>乱谈</category>
            <link>http://blog.joycode.com/qqchen/archive/2004/07/22/28086.aspx</link>
            <description>&amp;nbsp; 从MSN Explorer新申请的@msn.com email账号已经升级成了2G。这个比GMail的好处是直接支持POP3收件。如果你没有安装MSN Explorer的话，可以从这里下载。&lt;img src="http://blog.joycode.com/qqchen/aggbug/28086.aspx" width="1" height="1" /&gt;</description>
            <dc:creator>qqchen</dc:creator>
            <guid>http://blog.joycode.com/qqchen/archive/2004/07/22/28086.aspx</guid>
            <pubDate>Thu, 22 Jul 2004 03:45:00 GMT</pubDate>
            <wfw:comment>http://blog.joycode.com/qqchen/comments/28086.aspx</wfw:comment>
            <comments>http://blog.joycode.com/qqchen/archive/2004/07/22/28086.aspx#feedback</comments>
            <slash:comments>31</slash:comments>
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