�??xml version="1.0" encoding="utf-8" standalone="yes"?><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/"><channel><title>&#25104;&#20154;&#31934;&#21697;&#19968;&#21306;&#20108;&#21306;&#20037;&#20037;&#20037;&#44;&#19968;&#26412;&#33394;&#32508;&#21512;&#32593;&#20037;&#20037;&#44;&#20037;&#20037;&#57;&#57;&#22269;&#20135;&#31934;&#19968;&#21306;&#20108;&#21306;&#19977;&#21306;</title><link>http://www.shnenglu.com/neverwinter/archive/2011/06/19/148964.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Sun, 19 Jun 2011 08:06:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2011/06/19/148964.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/148964.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2011/06/19/148964.html#Feedback</comments><slash:comments>3</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/148964.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/148964.html</trackback:ping><description><![CDATA[最�q�尝试用Cocoa做一个四则运���计���器来练手，�c�M��于Windows cmd: calc的那�U��?br /><br />毕竟�q�个东西���是我们��目�l�的入门�l�习�Q�当�q�很多新人刚�q�来�Q�老组镉K��会教他们用MFC/QT做个计算器来看看水��^。由于各�U�原因，我当�q�倒是没有受到�q�种&#8220;�C�遇&#8221;�Q�等我真正开始做软�g的时候，�q�是服务器端�q�样的纯C++代码做得比较多。但是不做不知道�Q�一做才发现UI的逻辑�q�是挺复杂的�Q�比如说�Q�按&#8220;1&#8221;是追加到当前昄����q�是覆盖现有的显�C�呢�Q�最后把逻辑弄清楚倒不是很�ȝ���Q�但要写出好看的代码�q�是有比较大的差距的�?br /><br />以上都是前言�Q�好像比较长&#8230;&#8230;<br /><br />要说的是�Q�在�q�个�q�程中发现的问题�Q�计���结果是���点敎ͼ�要怎么判断其是否能无损地�{换成整数�Q�从而消除小数点后的一�D�|��用的&#8220;0&#8221;�Q�以更好地显�C�。直接上代码�Q?br /><div style="background-color:#eeeeee;font-size:13px;border:1px solid #CCCCCC;padding-right: 5px;padding-bottom: 4px;padding-left: 4px;padding-top: 4px;width: 98%;word-break:break-all"><!--<br /><br />Code highlighting produced by Actipro CodeHighlighter (freeware)<br />http://www.CodeHighlighter.com/<br /><br />--><span style="color: #008080; ">&nbsp;1</span>&nbsp;<span style="color: #000000; ">template&nbsp;</span><span style="color: #000000; ">&lt;</span><span style="color: #000000; ">typename&nbsp;FloatType</span><span style="color: #000000; ">&gt;</span><span style="color: #000000; "><br /></span><span style="color: #008080; ">&nbsp;2</span>&nbsp;<span style="color: #000000; "></span><span style="color: #0000FF; ">struct</span><span style="color: #000000; ">&nbsp;_floattype_meta<br /></span><span style="color: #008080; ">&nbsp;3</span>&nbsp;<span style="color: #000000; ">{<br /></span><span style="color: #008080; ">&nbsp;4</span>&nbsp;<span style="color: #000000; ">};<br /></span><span style="color: #008080; ">&nbsp;5</span>&nbsp;<span style="color: #000000; "><br /></span><span style="color: #008080; ">&nbsp;6</span>&nbsp;<span style="color: #000000; ">template</span><span style="color: #000000; ">&lt;&gt;</span><span style="color: #000000; "><br /></span><span style="color: #008080; ">&nbsp;7</span>&nbsp;<span style="color: #000000; "></span><span style="color: #0000FF; ">struct</span><span style="color: #000000; ">&nbsp;_floattype_meta</span><span style="color: #000000; ">&lt;</span><span style="color: #0000FF; ">float</span><span style="color: #000000; ">&gt;</span><span style="color: #000000; "><br /></span><span style="color: #008080; ">&nbsp;8</span>&nbsp;<span style="color: #000000; ">{<br /></span><span style="color: #008080; ">&nbsp;9</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">enum</span><span style="color: #000000; ">&nbsp;{<br /></span><span style="color: #008080; ">10</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EXPO_OFFSET&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;</span><span style="color: #000000; ">23</span><span style="color: #000000; ">,<br /></span><span style="color: #008080; ">11</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EXPO_LEN&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;</span><span style="color: #000000; ">8</span><span style="color: #000000; "><br /></span><span style="color: #008080; ">12</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;};<br /></span><span style="color: #008080; ">13</span>&nbsp;<span style="color: #000000; "><br /></span><span style="color: #008080; ">14</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;typedef&nbsp;uint32_t&nbsp;match_uint_type;<br /></span><span style="color: #008080; ">15</span>&nbsp;<span style="color: #000000; ">};<br /></span><span style="color: #008080; ">16</span>&nbsp;<span style="color: #000000; "><br /></span><span style="color: #008080; ">17</span>&nbsp;<span style="color: #000000; ">template</span><span style="color: #000000; ">&lt;&gt;</span><span style="color: #000000; "><br /></span><span style="color: #008080; ">18</span>&nbsp;<span style="color: #000000; "></span><span style="color: #0000FF; ">struct</span><span style="color: #000000; ">&nbsp;_floattype_meta</span><span style="color: #000000; ">&lt;</span><span style="color: #0000FF; ">double</span><span style="color: #000000; ">&gt;</span><span style="color: #000000; "><br /></span><span style="color: #008080; ">19</span>&nbsp;<span style="color: #000000; ">{<br /></span><span style="color: #008080; ">20</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">enum</span><span style="color: #000000; ">&nbsp;{<br /></span><span style="color: #008080; ">21</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EXPO_OFFSET&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;</span><span style="color: #000000; ">52</span><span style="color: #000000; ">,<br /></span><span style="color: #008080; ">22</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EXPO_LEN&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;</span><span style="color: #000000; ">11</span><span style="color: #000000; "><br /></span><span style="color: #008080; ">23</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;};<br /></span><span style="color: #008080; ">24</span>&nbsp;<span style="color: #000000; "><br /></span><span style="color: #008080; ">25</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;typedef&nbsp;uint64_t&nbsp;match_uint_type;<br /></span><span style="color: #008080; ">26</span>&nbsp;<span style="color: #000000; ">};<br /></span><span style="color: #008080; ">27</span>&nbsp;<span style="color: #000000; "><br /></span><span style="color: #008080; ">28</span>&nbsp;<span style="color: #000000; ">template&nbsp;</span><span style="color: #000000; ">&lt;</span><span style="color: #000000; ">typename&nbsp;FloatType</span><span style="color: #000000; ">&gt;</span><span style="color: #000000; "><br /></span><span style="color: #008080; ">29</span>&nbsp;<span style="color: #000000; "></span><span style="color: #0000FF; ">struct</span><span style="color: #000000; ">&nbsp;float_to_int<br /></span><span style="color: #008080; ">30</span>&nbsp;<span style="color: #000000; ">{<br /></span><span style="color: #008080; ">31</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;typedef&nbsp;</span><span style="color: #0000FF; ">struct</span><span style="color: #000000; ">&nbsp;_floattype_meta</span><span style="color: #000000; ">&lt;</span><span style="color: #000000; ">FloatType</span><span style="color: #000000; ">&gt;</span><span style="color: #000000; ">&nbsp;_meta;<br /></span><span style="color: #008080; ">32</span>&nbsp;<span style="color: #000000; "><br /></span><span style="color: #008080; ">33</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">bool</span><span style="color: #000000; ">&nbsp;</span><span style="color: #0000FF; ">operator</span><span style="color: #000000; ">()&nbsp;(&nbsp;FloatType&nbsp;f,&nbsp;FloatType&nbsp;precision&nbsp;)<br /></span><span style="color: #008080; ">34</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;{<br /></span><span style="color: #008080; ">35</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">static</span><span style="color: #000000; ">&nbsp;</span><span style="color: #0000FF; ">const</span><span style="color: #000000; ">&nbsp;_meta::match_uint_type&nbsp;EXPO_MASK&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;<br /></span><span style="color: #008080; ">36</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(</span><span style="color: #000000; ">~</span><span style="color: #000000; ">((</span><span style="color: #000000; ">~</span><span style="color: #000000; ">(_meta::match_uint_type)</span><span style="color: #000000; ">0</span><span style="color: #000000; ">)&nbsp;</span><span style="color: #000000; ">&lt;&lt;</span><span style="color: #000000; ">&nbsp;_meta::EXPO_LEN&nbsp;))&nbsp;</span><span style="color: #000000; ">&lt;&lt;</span><span style="color: #000000; ">&nbsp;_meta::EXPO_OFFSET;<br /></span><span style="color: #008080; ">37</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;_meta::match_uint_type</span><span style="color: #000000; ">*</span><span style="color: #000000; ">&nbsp;pf&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;(_meta::match_uint_type</span><span style="color: #000000; ">*</span><span style="color: #000000; ">)</span><span style="color: #000000; ">&amp;</span><span style="color: #000000; ">f;<br /></span><span style="color: #008080; ">38</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;uint32_t&nbsp;expo&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;((</span><span style="color: #000000; ">*</span><span style="color: #000000; ">pf)&nbsp;</span><span style="color: #000000; ">&amp;</span><span style="color: #000000; ">&nbsp;EXPO_MASK)&nbsp;</span><span style="color: #000000; ">&gt;&gt;</span><span style="color: #000000;">&nbsp;_meta::EXPO_OFFSET;<br /></span><span style="color: #008080; ">39</span>&nbsp;<span style="color: #000000; "><br /></span><span style="color: #008080; ">40</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">static</span><span style="color: #000000; ">&nbsp;</span><span style="color: #0000FF; ">const</span><span style="color: #000000; ">&nbsp;uint32_t&nbsp;EXPO_FIRSTBIT_MASK&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;</span><span style="color: #000000; ">1</span><span style="color: #000000; ">&lt;&lt;</span><span style="color: #000000; ">&nbsp;(_meta::EXPO_LEN</span><span style="color: #000000; ">-</span><span style="color: #000000; ">1</span><span style="color: #000000; ">);<br /></span><span style="color: #008080; ">41</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">static</span><span style="color: #000000; ">&nbsp;</span><span style="color: #0000FF; ">const</span><span style="color: #000000; ">&nbsp;uint32_t&nbsp;EXPO_BOUND&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;EXPO_FIRSTBIT_MASK&nbsp;</span><span style="color: #000000; ">-</span><span style="color: #000000; ">&nbsp;</span><span style="color: #000000; ">1</span><span style="color: #000000; ">;<br /></span><span style="color: #008080; ">42</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">if</span><span style="color: #000000; ">&nbsp;(&nbsp;expo&nbsp;</span><span style="color: #000000; ">&gt;=</span><span style="color: #000000; ">&nbsp;EXPO_BOUND&nbsp;)<br /></span><span style="color: #008080; ">43</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br /></span><span style="color: #008080; ">44</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;uint32_t&nbsp;to_right_move&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;expo&nbsp;</span><span style="color: #000000; ">-</span><span style="color: #000000; ">&nbsp;EXPO_BOUND;<br /></span><span style="color: #008080; ">45</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">if</span><span style="color: #000000; ">&nbsp;(&nbsp;to_right_move&nbsp;</span><span style="color: #000000; ">&gt;=</span><span style="color: #000000; ">&nbsp;_meta::EXPO_OFFSET&nbsp;)<br /></span><span style="color: #008080; ">46</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br /></span><span style="color: #008080; ">47</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">return</span><span style="color: #000000; ">&nbsp;</span><span style="color: #0000FF; ">true</span><span style="color: #000000; ">;<br /></span><span style="color: #008080; ">48</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br /></span><span style="color: #008080; ">49</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;uint32_t&nbsp;cmp_len&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;_meta::EXPO_OFFSET&nbsp;</span><span style="color: #000000; ">-</span><span style="color: #000000; ">&nbsp;to_right_move;<br /></span><span style="color: #008080; ">50</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;_meta::match_uint_type&nbsp;mask&nbsp;</span><span style="color: #000000; ">=</span><span style="color: #000000; ">&nbsp;</span><span style="color: #000000; ">~</span><span style="color: #000000; ">(</span><span style="color: #000000; ">~</span><span style="color: #000000; ">((_meta::match_uint_type)</span><span style="color: #000000; ">0</span><span style="color: #000000; ">)&nbsp;</span><span style="color: #000000; ">&lt;&lt;</span><span style="color: #000000; ">&nbsp;cmp_len);<br /></span><span style="color: #008080; ">51</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">return</span><span style="color: #000000; ">&nbsp;(</span><span style="color: #000000; ">*</span><span style="color: #000000; ">pf</span><span style="color: #000000; ">&amp;</span><span style="color: #000000; ">mask)&nbsp;</span><span style="color: #000000; ">?</span><span style="color: #000000; ">&nbsp;</span><span style="color: #0000FF; ">false</span><span style="color: #000000; ">&nbsp;:&nbsp;</span><span style="color: #0000FF; ">true</span><span style="color: #000000; ">;<br /></span><span style="color: #008080; ">52</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br /></span><span style="color: #008080; ">53</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">else</span><span style="color: #000000; "><br /></span><span style="color: #008080; ">54</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br /></span><span style="color: #008080; ">55</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000FF; ">return</span><span style="color: #000000; ">&nbsp;(&nbsp;f&nbsp;</span><span style="color: #000000; ">&lt;</span><span style="color: #000000; ">&nbsp;precision&nbsp;</span><span style="color: #000000; ">&amp;&amp;</span><span style="color: #000000; ">&nbsp;f&nbsp;</span><span style="color: #000000; ">&gt;</span><span style="color: #000000; ">&nbsp;</span><span style="color: #000000; ">-</span><span style="color: #000000; ">precision&nbsp;)&nbsp;</span><span style="color: #000000; ">?</span><span style="color: #000000; ">&nbsp;</span><span style="color: #0000FF; ">true</span><span style="color: #000000; ">&nbsp;:&nbsp;</span><span style="color: #0000FF; ">false</span><span style="color: #000000; ">;<br /></span><span style="color: #008080; ">56</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br /></span><span style="color: #008080; ">57</span>&nbsp;<span style="color: #000000; ">&nbsp;&nbsp;&nbsp;&nbsp;}<br /></span><span style="color: #008080; ">58</span>&nbsp;<span style="color: #000000; ">};</span></div><br />我的�Ҏ(gu��)��是通过���点型的�l�构来进行判断�?br /><br />���点�c�d��一般结构如下：<br />|+/-|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; exponent&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; tail&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |<br />对于float�Q�指数部分�ؓ8字节�Q�尾数部分�ؓ23字节�?br /><div>对于double�Q�指数部分�ؓ11字节�Q�尾数部分�ؓ52字节�?br />其中指数部分是采用偏�U�L��式的�Q�比如float的指数部分�ؓ130�Q�偏�U�d��gؓ127�Q�即实际指数�?30-127�?br />更详�l�的请参�?a target="_blank" >�q�里</a>�?/div><br />判断�Ҏ(gu��)��是，计算指数的��|���Ҏ(gu��)��偏移判断���数点后的尾敎ͼ�惛_��比较���单，汗！<br />引入参数�_�ֺ�是�ؓ了判断值小�?时达到某个阈值的时候可以将后面的小数略厅R�?br /><br />Honestly�Q�其实这个应该可以用sprintf�Q�然后判断小数点后的&#8220;0&#8221;来实现的�Q�似乎更加简单方�ѝ�?br />但是我觉得，作�ؓ一�?#8220;码农&#8221;�Q�重造轮子也是一�U�趣呛_���Q?img src ="http://www.shnenglu.com/neverwinter/aggbug/148964.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2011-06-19 16:06 <a href="http://www.shnenglu.com/neverwinter/archive/2011/06/19/148964.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>关于工作关系的一些吐�?/title><link>http://www.shnenglu.com/neverwinter/archive/2011/06/16/148812.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Thu, 16 Jun 2011 14:24:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2011/06/16/148812.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/148812.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2011/06/16/148812.html#Feedback</comments><slash:comments>5</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/148812.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/148812.html</trackback:ping><description><![CDATA[�w�处一个学生团队中�Q�虽说会像公�怸�样从事项目研发、承包一些外包项目，学生���如公司的员工一��P��老师有点像公司Boss又不完全是，但感觉最大的分别是�h与�h、�h与集体之间关�pȝ���pȝ���U�带不一栗��?br /><br />好比说在公司里，抛开兴趣爱好、对公司情感�{�的上层因素�Q��h与集体之间最基本的关�p�L��合同制、契�U�关�p�R��这意味着�Q�我完成我的工作�Q�你���p��相应地支付劳动报酬，虽然有些赤裸裸的资本��M��金钱利益交易的色彩，但确是最实在、最有保证的关系。如果我完成不了我的工作�Q�你可以���付、乃至不付劳动报酬；���额完成��d���Q�可以有相应的奖金（理想状态下�Q�；哪天我请假了�Q�我没有工作�Q�那天的工资可以扣除。好比钢炼里面的&#8220;�{��h(hu��n)交换&#8221;原则�Q�虽则不时有些残��P��却又是最自然、最透明、最公正的。这学期�׃����目原因�Q�在外面公司待了好一�D�|����_��看到了不���外面的人对于工作的态度也是相当的坦荡荡�Q�该请假时就请假�Q�迟��C�����扣钱。当�Ӟ���q�最好还是以不媄响集体利益�ؓ前提�?br /><br />反观我所处环境的情况�Q�师生之间显然不可能是雇佣关�p�，那是什么来�l�系一个团队的�q�作�Q�完成一个个的项目呢�Q�我认�ؓ�?#8220;责�Q&#8221;。培��L��有责��L��的�h�Q�也是我们所提倡的。但�Q�我曄���听过一个过来�h说的故事�Q�某人某�ơ小假期回家�Q�最后几天突然生病了�q�比较严重，父母都劝他在家把病养好再回去做项目，他还是执意要回来�Q�毕竟大安���在工作，他也不好意思就�q�样多休息几天。又如，大三那年的暑假，正值新��目开始，��目周期短、工作量大，大家都在奋战着�Q�突然我安���发生变故�Q�当时我惌���是不要回��M���Q�回��M��没用�Q�而且我一赎ͼ�我这块的�q�度谁来保障�Q�就�q�是留在学校赉���目，后来回想��h���q�是有些遗憾。我们这些�h��d��莫名其妙中对集体担负着�q�样那样�?#8220;责�Q&#8221;�Q�虽然这��L��责�Q意识长期保持着会让我们成�ؓ很不一��L��人，但是与此同时我们也是�z�d��很篏的�h�?br /><br />我觉得，一切以集体为重的责��L��识很�Ҏ(gu��)���Ҏ(gu��)��了个性的存在�Q�很多个人化的事情也因次而难以开展。由于我们的关系是抽象化�?#8220;责�Q&#8221;而不是更为具体的&#8220;合同&#8221;�Q�很多事情还真是��C��说不清的地步。考试、学生自然或不自然地便围�l�着集体的项目来安排�Q�有些很�U��h化的事情不好��d��。最疲篏的是不自觉无时无��d��注着�q�样�?#8220;责�Q&#8221;关系、�ƈ以一�U�较�?#8220;癫狂&#8221;的方式来履行。作��Z���?#8220;全职&#8221;人员�Q�朝�?ji��)晚十是�q�_��事，但有时候我觉得待不住了、坐得快要吐了，我觉得我�q�是不能���d���Q�因为集体还要运作，或者说个�h的不合作很容易弱化集体的凝聚力（不否认这是我写这���文章的原因�Q��?br /><br />另一斚w���Q�以&#8220;责�Q&#8221;为纽带来带领集体�Q���L��些异��L��感觉。曾�l�也做到了类似项目组长之�cȝ��工作�Q�需要管理一部分人，但��L��觉在�q�个�q�程中没有什么有说服力的关系来调度手下的人。如果是合同关系下的工作�Q�你不情我不愿，可以走可以换人，大家都乐得轻松。金钱利益是必须的，但��d��以换�U�方式来获取它。但是换着�?#8220;责�Q&#8221;意识作基����Q�手下的人没有这个意识似乎工作都不用做了�Q�又或者所做的不是个�h所希望得到的，作�ؓ���理者我也不能给你什么、保证些什么�?br /><br />好吧�Q�写到这里，我觉得我��x���q�的是一个很���厚�?#8220;胶合�?#8221;�Q�但�?#8220;责�Q&#8221;来概括似乎已�l�不够全面了。但依据《Unix�~�程艺术》，太厚的胶着层不是一�U�好的设计方式。简�z�、透明、直接的会是更好的方式，工作也能够更好地开展�?br /><br />�q�好�q�是有终极的个�h保障机制&#8212;&#8212;you can quit�Q�离开集体�Q�便��d����q���q�种千丝万缕的关�p�R�?br /><br />不说太多�Q�仅此吐槽！<img src ="http://www.shnenglu.com/neverwinter/aggbug/148812.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2011-06-16 22:24 <a href="http://www.shnenglu.com/neverwinter/archive/2011/06/16/148812.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Archlinux�~�译ACE时出的问�?/title><link>http://www.shnenglu.com/neverwinter/archive/2011/01/15/138574.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Sat, 15 Jan 2011 09:08:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2011/01/15/138574.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/138574.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2011/01/15/138574.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/138574.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/138574.html</trackback:ping><description><![CDATA[官方有个比较�_����的编译安装指南，�?a  >�q�里</a>。但是对于我所���到的问题没有说�?br><br>提示链接时SSL的符��h��有找刎ͼ�但我是装好了openssl的，也特意找了一下，都安装在/usr/�?br><br>然后��ȝ��了一下build/examples/IPC_SAP/SSL_SAP/下的Makefile�Q�找�?#8220;LIBS = -lrt -ldl&#8221;�Q�没有指明openssl库的链接<br><br>遂加上！�?br><br>LIBS = -lrt -ldl -lssl<br><br>�~�译之！�?br><br>build/test/SSL的问题同解�?br><br>不知道其他Linux发行版有没有�q�样的问题，�q�是我的配置有问题，但�ȝ��最�l�编译完了�?br><br><img src ="http://www.shnenglu.com/neverwinter/aggbug/138574.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2011-01-15 17:08 <a href="http://www.shnenglu.com/neverwinter/archive/2011/01/15/138574.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Python做Web的中文编码问�?/title><link>http://www.shnenglu.com/neverwinter/archive/2010/10/06/128790.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Wed, 06 Oct 2010 07:50:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2010/10/06/128790.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/128790.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2010/10/06/128790.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/128790.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/128790.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: &nbsp;&nbsp;<a href='http://www.shnenglu.com/neverwinter/archive/2010/10/06/128790.html'>阅读全文</a><img src ="http://www.shnenglu.com/neverwinter/aggbug/128790.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2010-10-06 15:50 <a href="http://www.shnenglu.com/neverwinter/archive/2010/10/06/128790.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>new/delete operator�W�记</title><link>http://www.shnenglu.com/neverwinter/archive/2010/07/19/120793.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Mon, 19 Jul 2010 10:21:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2010/07/19/120793.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/120793.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2010/07/19/120793.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/120793.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/120793.html</trackback:ping><description><![CDATA[1.new操作�W�可以带多参�?br>2.没有对应的operator delete会出现warning�Q�vs2008�Q?br>3.operator new/delete是类成员的情况下�Q�用自定义的operator new创徏、调用构造函敎ͼ�会自动调对应的operator delete来析�?br>4.delete操作�W�可以带多参敎ͼ�要��用自定义的operator new只能昑ּ�调用<br>5.自定义的operator delete不会自动析构对象<br><br><img src ="http://www.shnenglu.com/neverwinter/aggbug/120793.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2010-07-19 18:21 <a href="http://www.shnenglu.com/neverwinter/archive/2010/07/19/120793.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>关于vs2008 SP1中CMFCToolBar的一些事�?/title><link>http://www.shnenglu.com/neverwinter/archive/2010/05/20/115984.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Thu, 20 May 2010 15:53:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2010/05/20/115984.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/115984.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2010/05/20/115984.html#Feedback</comments><slash:comments>13</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/115984.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/115984.html</trackback:ping><description><![CDATA[话说昨天解决了MFC跨线�E�操作控件的问题�Q�我满以��Z��天可以free一回，玩玩Linux、学学Vim、再准备一下毕业论文的事情�Q�但�q�是有事情要做，然后又是&#8220;�?#8221;MFC郁闷了一天�?br><br>先介�l�一下��M��的情��c��我们项目客��L��的开发环境是VS2008+SP1�Q�用的是MFC�c�d���Q�里面居然用��C��CMFCToolBar、CMFCMenuBar以及Appearance变化�{�的SPI新特性。说&#8220;居然&#8221;是因�����些东西不是项目必要的�Q�当时可能也以�ؓ只是名字变了用法没变�Q�估计在工程创徏的时候根本就没有考虑�q�些�Q�直接按着单文档工�E�默认配�|�，next、next直接创徏完的�Q�囧�Q�当时做的时候也只是当作���试Demo来用�Q�也没太在意�Q�毕竟我们项目的重点在服务器而非�q�个MFC客户端�?br><br>后来�׃����目原因�Q�甲方要求我们把�q�个客户端尽快修�Ҏ(gu��)��一个可以发布版本。不改不知道�Q�一改吓一跻I��当准备动手修改工��h��时才发现与以前惯的CToolBar真实差距甚大。CToolBar可以用CImageList把自定义的BMP囄���攑ֈ�工具栏的按钮�Q�详�l�可�?a >�q�里</a>�Q�CMFCToolBar�Ҏ(gu��)����׃��是这��L��一个玩法。直接放一个CToolBar上来�Q�在DockControlBar()的时候会出现断言错误�Q�缺���DockBar�Q�貌似是�q�个名字�Q�汗�Q�）。定位代码到MainFrm的EnableDocking()�Q�现在的MainFrm的��承关�p�L��CMainFrm-&gt;CFrameWndEx-&gt;CFrameWnd�Q�而以前是CMainFrm-&gt;CFrameWnd�Q�CFrameWndEx::EnableDocking()是�ؓDockPane()服务的，而DockControlBar()需要的DockBar�q�不会被初始化。调用基�cȝ��CFrameWnd::EnableDocking()后再DockControlBar()不会出现断言�Q�但是那个工��h��没有昄���。而且现在新特性下在工��h��位置能够按出右键菜单�Q�但右键菜单中根本不可能有关于该CToolBar的信息，乍看��h��很不和谐~<br><br>最后，求助本地MSDN无果�Q�貌似SP1没有包含对MSDN文档的更斎ͼ�求助MSDN官网�Q�那个真�?#8220;�a����意赅&#8221;。只能说�Q�MS你这�ơ真�?#8220;�?#8221;了！<br><br>以下为google + vs2008 sp1 sample + 看代码的成果�Q?br>
<ul>
    <li>创徏默认ToolBar外的�W�二个ToolBar</li>
</ul>
<div style="background-color: #eeeeee; font-size: 13px; border: 1px solid #cccccc; padding: 4px 5px 4px 4px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: #008080;"></span><span style="color: #008080;">1</span> //默认工具�?br><span style="color: #008080;">2</span> m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, <br><span style="color: #008080;">3</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WS_CHILD | WS_VISIBLE | CBRS_TOP | CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);<span style="color: #000000;"><br></span><span style="color: #008080;">4</span> <span style="color: #000000;">//自定义工��h��<br></span><span style="color: #008080;">5</span> <span style="color: #000000;">m_mybar.CreateEx(</span><span style="color: #0000ff;">this</span><span style="color: #000000;">,&nbsp;TBSTYLE_FLAT, <br></span><span style="color: #008080;">6</span><span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WS_CHILD&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;WS_VISIBLE&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_TOP&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_GRIPPER&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_TOOLTIPS&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_FLYBY&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_SIZE_DYNAMIC, <br></span><span style="color: #008080;">7</span><span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CRect(</span><span style="color: #000000;">1</span><span style="color: #000000;">,</span><span style="color: #000000;">1</span><span style="color: #000000;">,</span><span style="color: #000000;">1</span><span style="color: #000000;">,</span><span style="color: #000000;">1</span><span style="color: #000000;">),&nbsp;<span style="color: red;">ID_MYBAR</span>);</span></div>
<br>注意�Q�Wizard生成的工��h��Create时没有带ID�Q�但�W�二个工��h��Create时最好要带ID。加了ID之后�Q�在工具栏右键菜单才会出现第二个工具栏的CheckBox。否则，不良后果有：1、右键菜单没有该工具栏Checkbox�Q?、把默认工具栏和该工��h��拖出来（���动�Q�，可以看到名字都是一��L���Q�英文版为Standard�Q�；3、后面要提到的UserImage不能作�ؓ按钮图标昄����?br><br>
<ul>
    <li>加蝲工具栏资�?/li>
</ul>
我们先来看看CMFCToolBar加蝲工具栏的函数原型�Q?br>
<div style="background-color: #eeeeee; font-size: 13px; border: 1px solid #cccccc; padding: 4px 5px 4px 4px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: #008080;">1</span>&nbsp;<span style="color: #0000ff;">virtual</span><span style="color: #000000;">&nbsp;BOOL&nbsp;LoadToolBar(UINT&nbsp;uiResID,&nbsp;UINT&nbsp;uiColdResID&nbsp;</span><span style="color: #000000;">=</span><span style="color: #000000;">&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">,&nbsp;UINT&nbsp;uiMenuResID&nbsp;</span><span style="color: #000000;">=</span><span style="color: #000000;">&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">,&nbsp;BOOL&nbsp;bLocked&nbsp;</span><span style="color: #000000;">=</span><span style="color: #000000;">&nbsp;FALSE,<br></span><span style="color: #008080;">2</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UINT&nbsp;uiDisabledResID&nbsp;</span><span style="color: #000000;">=</span><span style="color: #000000;">&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">,&nbsp;UINT&nbsp;uiMenuDisabledResID&nbsp;</span><span style="color: #000000;">=</span><span style="color: #000000;">&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">,&nbsp;&nbsp;UINT&nbsp;uiHotResID&nbsp;</span><span style="color: #000000;">=</span><span style="color: #000000;">&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">);</span></div>
可以看出�Q�uiResID代表要加载的工具栏资源，理论上只需要这一个参数就能完成工��h��的加载。但是VS的Toolbar Editor只能�~�辑4bit的工��h��图标�Q�以前CToolBar是用CImagList来加载更多bits的图标的�Q�现在应该怎么做呢�Q�多亏了Explore sample的例子，我发现后面的几个UINT参数���是BMP的资源，最主要的是最后一个uiHotResID�Q�即便其他用默认��|���q�项赋BMP ID���p��按预期的图标昄���。Cold、Disable表示的是不同状态下的图标样式，带Menu的是Menu有关的图标，具体可看SP1 Feature的sample�?br>我的Demo里自定义工具栏的��d��������E�：<br>
<div style="background-color: #eeeeee; font-size: 13px; border: 1px solid #cccccc; padding: 4px 5px 4px 4px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: #008080;">1</span>&nbsp;&nbsp;&nbsp;&nbsp; <span style="color: #0000ff;">if</span><span style="color: #000000;">&nbsp;(</span><span style="color: #000000;"> !</span><span style="color: #000000;">m_mybar.CreateEx(</span><span style="color: #0000ff;">this</span><span style="color: #000000;">,&nbsp;TBSTYLE_FLAT, <br></span><span style="color: #008080;">2</span><span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WS_CHILD&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;WS_VISIBLE&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_TOP&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_GRIPPER&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_TOOLTIPS&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_FLYBY&nbsp;</span><span style="color: #000000;">|</span><span style="color: #000000;">&nbsp;CBRS_SIZE_DYNAMIC, <br></span><span style="color: #008080;">3</span><span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CRect(</span><span style="color: #000000;">1</span><span style="color: #000000;">,</span><span style="color: #000000;">1</span><span style="color: #000000;">,</span><span style="color: #000000;">1</span><span style="color: #000000;">,</span><span style="color: #000000;">1</span><span style="color: #000000;">),&nbsp;ID_MYBAR)&nbsp;</span><span style="color: #000000;">||</span><span style="color: #000000;"><br></span><span style="color: #008080;">4</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span style="color: #000000;">!</span><span style="color: #000000;">m_mybar.LoadToolBar(&nbsp;IDR_TOOLBAR1,&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">,&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">,&nbsp;FALSE,&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">,&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">,&nbsp;theApp.m_bHiColorIcons</span><span style="color: #000000;">?</span><span style="color: #000000;">IDB_BITMAP1:</span><span style="color: #000000;">0</span><span style="color: #000000;">&nbsp;)&nbsp;)<br></span><span style="color: #008080;">5</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp; {<br></span><span style="color: #008080;">6</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TRACE0(</span><span style="color: #000000;">"</span><span style="color: #000000;">Failed&nbsp;to&nbsp;create&nbsp;toolbar\n</span><span style="color: #000000;">"</span><span style="color: #000000;">);<br></span><span style="color: #008080;">7</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span style="color: #0000ff;">return</span><span style="color: #000000;">&nbsp;</span><span style="color: #000000;">-</span><span style="color: #000000;">1</span><span style="color: #000000;">;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #008000;">//</span><span style="color: #008000;">&nbsp;fail&nbsp;to&nbsp;create</span><span style="color: #008000;"><br></span><span style="color: #008080;">8</span> <span style="color: #008000;"></span><span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;}<br></span><span style="color: #008080;">9</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp; m_mybar.SetWindowText(_T(</span><span style="color: #000000;">"</span><span style="color: #000000;">abc</span><span style="color: #000000;">"</span><span style="color: #000000;">));</span></div>
最后的SetWindowText()讄���工具栏的名称�?br>CMFCToolBar有LoadBitmap的方法，但是���试发现�Q�用LoadToolBar只加载工��h��资源�Q�再用LoadBitmap加蝲BMP资源�Q�虽然返回值是TRUE�Q�但昄���图标为空白，没有实际效果�?br><br>
<ul>
    <li>工具栏停�?/li>
</ul>
<div style="background-color: #eeeeee; font-size: 13px; border: 1px solid #cccccc; padding: 4px 5px 4px 4px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: #008000;">1 &nbsp; //</span><span style="color: #008000;">&nbsp;TODO:&nbsp;Delete&nbsp;these&nbsp;five&nbsp;lines&nbsp;if&nbsp;you&nbsp;don't&nbsp;want&nbsp;the&nbsp;toolbar&nbsp;and&nbsp;menubar&nbsp;to&nbsp;be&nbsp;dockable</span><span style="color: #008000;"><br></span><span style="color: #008080;">2</span><span style="color: #000000;">&nbsp;&nbsp; m_wndMenuBar.EnableDocking(CBRS_ALIGN_ANY);<br></span><span style="color: #008080;">3</span><span style="color: #000000;">&nbsp;&nbsp; m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);<br></span><span style="color: #008080;">4</span><span style="color: #000000;">&nbsp;&nbsp; <span style="color: red;">m_mybar.EnableDocking(CBRS_ALIGN_ANY);</span><br></span><span style="color: #008080;">5</span><span style="color: #000000;">&nbsp;&nbsp; EnableDocking(CBRS_ALIGN_ANY);<br></span><span style="color: #008080;">6</span><span style="color: #000000;">&nbsp;&nbsp; DockPane(</span><span style="color: #000000;">&amp;</span><span style="color: #000000;">m_wndMenuBar);<br></span><span style="color: #008080;">7</span><span style="color: #000000;">&nbsp;&nbsp; DockPane(</span><span style="color: #000000;">&amp;</span><span style="color: #000000;">m_wndToolBar);<br></span><span style="color: #008080;">8</span><span style="color: #000000;">&nbsp;&nbsp; <span style="color: red;">DockPane(</span></span><span style="color: red;">&amp;m_mybar);</span></div>
与默认工��h��无异�?br><br>
<ul>
    <li>用户自定义图�?/li>
</ul>
CMFCToolBar可以让用戯���定义工具栏图标，使用静态成员函数SetUserImages()���一个CMFCToolBarImages对象讄����q�去�Q�由所有CMFCToolBar对象�׃�n。Wizard自动生成代码中有�q�样的例子：<br>
<div style="background-color: #eeeeee; font-size: 13px; border: 1px solid #cccccc; padding: 4px 5px 4px 4px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: #008080;">&nbsp;1</span>&nbsp;&nbsp;&nbsp;&nbsp; <span style="color: #0000ff;">if</span><span style="color: #000000;">&nbsp;(CMFCToolBar::GetUserImages()&nbsp;</span><span style="color: #000000;">==</span><span style="color: #000000;">&nbsp;NULL)<br></span><span style="color: #008080;">&nbsp;2</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;{<br></span><span style="color: #008080;">&nbsp;3</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #008000;">//</span><span style="color: #008000;">&nbsp;load&nbsp;user-defined&nbsp;toolbar&nbsp;images</span><span style="color: #008000;"><br></span><span style="color: #008080;">&nbsp;4</span>&nbsp;<span style="color: #008000;"></span><span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000ff;">if</span><span style="color: #000000;">&nbsp;(m_UserImages.Load(_T(</span><span style="color: #000000;">"</span><span style="color: #000000;">.\\UserImages.bmp</span><span style="color: #000000;">"</span><span style="color: #000000;">)))<br></span><span style="color: #008080;">&nbsp;5</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br></span><span style="color: #008080;">&nbsp;6</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;m_UserImages.SetImageSize(CSize(</span><span style="color: #000000;">16</span><span style="color: #000000;">,&nbsp;</span><span style="color: #000000;">16</span><span style="color: #000000;">),&nbsp;FALSE);<br></span><span style="color: #008080;">&nbsp;7</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CMFCToolBar::SetSizes(CSize(</span><span style="color: #000000;">16</span><span style="color: #000000;">,</span><span style="color: #000000;">16</span><span style="color: #000000;">),&nbsp;CSize(</span><span style="color: #000000;">16</span><span style="color: #000000;">,</span><span style="color: #000000;">16</span><span style="color: #000000;">));<br></span><span style="color: #008080;">&nbsp;8</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CMFCToolBar::SetUserImages(</span><span style="color: #000000;">&amp;</span><span style="color: #000000;">m_UserImages);<br></span><span style="color: #008080;">&nbsp;9</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br></span><span style="color: #008080;">10</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;}</span></div>
�q�个例子加蝲了工�E��\径下的一个BMP�Q�其他方法可以查看MSDN�Q�与CImageList有点点类伹{�?br>使用CMFCToolBar::ReplaceButton()可以替换已有的工��h��按钮�Q�以下是我的Demo中的代码�Q?br>
<div style="background-color: #eeeeee; font-size: 13px; border: 1px solid #cccccc; padding: 4px 5px 4px 4px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: #008080;">1</span> &nbsp; &nbsp; <span style="color: #000000;">m_mybar.ReplaceButton(&nbsp;ID_QTLOGO,&nbsp;CMFCToolBarButton(ID_QTLOGO,&nbsp;</span><span style="color: #000000;">0</span><span style="color: #000000;">,&nbsp;_T(</span><span style="color: #000000;">"</span><span style="color: #000000;">123</span><span style="color: #000000;">"</span><span style="color: #000000;">),&nbsp;TRUE)&nbsp;);</span></div>
�W�一个参数ID_QTLOGO�����定义工具栏上的一个按钮，后面是一�?span style="color: #000000;">CMFCToolBarButton的��(f��)时对象�?/span><span style="color: #000000;">CMFCToolBarButton构造函数第一个参��Cؓ替换</span>后的ID�Q�第三个参数为名�U�ͼ��W�二个参��Cؓ图标的烦�?zero-based)�Q�第四个参数为m_bUserButton�Q�指明第二个参数是烦引工��h��已加载图�?LoadToolBar或LoadBitmap)�q�是用户自定义图标（SetuserImages�Q�，TRUE指用戯���定义图标。这里的�l�果是将ID_QTLOGO上的图标替换�?span style="color: #000000;">UserImages.bmp</span>上的�W�一个图标�?br><br><span style="color: #000000;">GetCmdMgr()</span><span style="color: #000000;">-&gt;</span><span style="color: #000000;">GetCmdImage()</span>可以�Ҏ(gu��)��工具栏上图标的ID获取出已加蝲图标的烦引��|��<br>
<div style="background-color: #eeeeee; font-size: 13px; border: 1px solid #cccccc; padding: 4px 5px 4px 4px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: #008080;">1</span>&nbsp;&nbsp;&nbsp;&nbsp; <span style="color: #000000;">m_mybar.ReplaceButton(&nbsp;ID_QTLOGO,&nbsp;CMFCToolBarButton(ID_QTLOGO,&nbsp;GetCmdMgr()</span><span style="color: #000000;">-&gt;</span><span style="color: #000000;">GetCmdImage(ID_PLUS),&nbsp;_T(</span><span style="color: #000000;">"</span><span style="color: #000000;">123</span><span style="color: #000000;">"</span><span style="color: #000000;">))&nbsp;);</span></div>
�q�里���工��h��上ID_QTLOGO的图标替换�ؓID_PLUS按钮对应的图标�?br><br>特别圎ͼ�如果在你���这些工��h���Ҏ(gu��)��改去但显�C�结果却没有改变的时候，你可以尝试删�?<span style="color: red;">HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications\$(你的�E�序�?</span> �q�个键��|��当你重启�E�序后工��h��应该会按你的预想变化的。这是我在查资料时看到的�Q�当时没注意但后来发现挺有用的，出处没有记录下来�?br><br>最后，ReplaceButton�q�可以将按钮替换为其他控件�?br><br>
<ul>
    <li>其他...</li>
</ul>
我在自定义工��h��上做了一个有效响应，里面使用静态成员函数CMFCToolBar::ResetAllImages()���所有图标都清空了，此时会发现默认工��h��、自定义工具栏的图标都�ؓ�I��?br>
<div style="background-color: #eeeeee; font-size: 13px; border: 1px solid #cccccc; padding: 4px 5px 4px 4px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: #008080;">&nbsp;1</span>&nbsp;<span style="color: #0000ff;">void</span><span style="color: #000000;">&nbsp;CMainFrame::OnQtLogo()<br></span><span style="color: #008080;">&nbsp;2</span>&nbsp;<span style="color: #000000;">{<br></span><span style="color: #008080;">&nbsp;3</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;CMFCToolBar::ResetAllImages();<br></span><span style="color: #008080;">&nbsp;4</span>&nbsp;<span style="color: #000000;"><br></span><span style="color: #008080;">&nbsp;5</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #008000;">//</span><span style="color: #008000;">CMFCToolBar::AddToolBarForImageCollection(IDR_MENU_IMAGES,&nbsp;theApp.m_bHiColorIcons&nbsp;?&nbsp;IDB_MENU_IMAGES_24&nbsp;:&nbsp;0);</span><span style="color: #008000;"><br></span><span style="color: #008080;">&nbsp;6</span>&nbsp;<span style="color: #008000;"></span><span style="color: #000000;"><br></span><span style="color: #008080;">&nbsp;7</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;m_wndToolBar.LoadBitmap(IDB_BITMAP1);<br></span><span style="color: #008080;">&nbsp;8</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;m_mybar.LoadBitmap(IDR_MAINFRAME_256);<br></span><span style="color: #008080;">&nbsp;9</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;m_wndToolBar.RedrawWindow();<br></span><span style="color: #008080;">10</span>&nbsp;<span style="color: #000000;">&nbsp;&nbsp;&nbsp;&nbsp;m_mybar.RedrawWindow();<br></span><span style="color: #008080;">11</span>&nbsp;<span style="color: #000000;">}</span></div>
更奇妙的是，后面我对两个工具栏重新加载了BMP�Q�而且加蝲的BMP资源是反了的�Q�此旉���认工��h��上出��C��原来自定义工��h���?个图标，余下部分及自定义工具栏则为原来默认工��h��图标。可以想象，RestAllImages只是���图标资源都释放了，工具栏资源依然健在，重新加蝲BMP的时候，工具栏图标就像一个个��序排好的空��_��加蝲�q�来的BMP图标会出��C��前往后补位的现象�?br>注意代码中，默认工具栏图标重新加载时使用的资源是IDR_MAINFRAME_256�Q�是默认的工��h��资源。也���是��_���q�里用LoadBitmap加蝲工具栏资源也是有效果的。这样应该可以说明工��h��在创建时LoadToolBar、LoadBitmap分别成功地加载了工具栏、BMP资源�Q�实际上是加载了两套图标资源�Q�这两者是��序而非重合的，所以只昄���原来的工��h��资源。要��x��定两者的重合关系�Q�只有在LoadToolBar的时候同时传入工��h��资源及BMP资源的ID�?br><br><a href="http://www.shnenglu.com/Files/neverwinter/testtree.rar">Demo下蝲</a><br><br>———————————————————————————————————————————————————————————————�?br>好吧�Q�终于写完了�Q�写得很仓促�Q�不���的地方也很多，�Ƣ迎指教�Q?br>    <img src ="http://www.shnenglu.com/neverwinter/aggbug/115984.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2010-05-20 23:53 <a href="http://www.shnenglu.com/neverwinter/archive/2010/05/20/115984.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>最�q�几天被MFC折腾~</title><link>http://www.shnenglu.com/neverwinter/archive/2010/05/19/115853.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Wed, 19 May 2010 15:22:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2010/05/19/115853.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/115853.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2010/05/19/115853.html#Feedback</comments><slash:comments>16</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/115853.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/115853.html</trackback:ping><description><![CDATA[备注�Q�Rimi是我们用的一个分布式机制�?br><br>在进行设备树�Q�也���是一个CTreeCtrl控�g�Q�更��C��改的时候，遇到了一个比较bug的问题�?br><br>��Z��提供更好的用户体验，甲方希望讑֤�树更��C��后滚动条位置能够保持与更新前一致。设备树的更新过�E�是�q�样的：更新消息来自Rimi的通知机制�Q�类��g��函数回调�Q�客��L��在收到消息之后调用Rimi的对象方法来获取新的讑֤�树信息，然后更新树。乍看之下，要完成这个修改好像很���单，只要更新前先记录滚动条的滚动位置�Q�更新后�q�原位置�Q�如果更新后滚动条滚动范围变化了�q�要微调一下位�|�，逻辑上来讲就�q�么几个步骤�?br><br>我一开始也是按照这��L��思�\�Q�GetScrollPos()获取当前滚动条的滚动位置�Q�然后更新树�Q�先删除所有节点再逐个��d���Q�其他省�?..�Q�，GetScrollRange()获得新的滚动范围�Q�最后SetScrollPos()���旧的位�|�与滚动范围最大��g��最���的一个设回去�Q�这里用到的ScrollBar是CTreeCtrl自动产生的，注意不是两个控�g�Q�这里调用的函数都是CTreeCtrl的方法）。但实际效果是，树更新后滚动条滚到准���的位置�Q�但树的视图��C��最��Ӟ��点击一下滚动条的那个方块才能回��C��前的位置。也���是��_��滚动位置的更��C��树的视图分离了�?br><br>之后�Q�我一直以为是我控件的�Ҏ(gu��)��用错了，对着MSDN和CSDN�U�结了很久。最后忍无可忍，自己写了个测试Demo�Q�里面就一Dialog�Q�一CTreeCTrl�Q�树上随便加了些东西�Q�然后又一按键�Q�按键后会重新刷新树�Q�再滚动到原来的位置�Q�结果居然是对的�Q�视图跟着滚动条的位置变化了。�ؓ了更好的模拟讑֤�树节点增删的效果�Q�我在按键响应上又作了处理，按一下重��h��的时候会隐藏几个节点�Q�再按一下这些节�Ҏ(gu��)���C�出来，滚动位置按照客户端里面的一个处理方法，�l�果居然也是正确的。问题变得玄乎了�Q?br><br>无意间发现客��L��里面有个手动��h��讑֤�树的快捷键，估计是当�q�pb做调试的时候留下来的。快捷键的响应直接调用更新树的函敎ͼ�重刷后的昄�����Z�h意料地是对的。比较一下两�U�更新方式的�q�程�Q?br><br>Rimi�Q?nbsp;&nbsp; 通知到来�?gt;更新树（Rimi回调函数�Q�Rimi自己�l�护了一个线�E�池�Q�远�E�调用在被调用端的发赯���都是Rimi自己的线�E�）<br>快捷键： 按键响应�?gt;更新树（MFC消息处理函数�Q?br><br>更新树所用到的是同一个函敎ͼ�但调用者却是不同的。因为Rimi用了boost::function�Q�那我也在按键响应的时候对要调的函数用function来包装一下，造成两者在调用栈上调用的函数、顺序大部分是一致的�Q�只有最底层不同�Q�一�Ҏ(gu��)��Rimi�Q�一�Ҏ(gu��)��MFC消息传递�?br><br>后来jianhao��_��以前在Rimi的回调函数里面调Rimi对象的方法出�q�问题，然后我又��道回忆起之前zxb在Rimi函数�Q�还是对象方法）里面调system()也有问题�?br><br>��N��说Rimi�U�程���是&#8220;万恶之源&#8221;�Q�好吧，我把更新代码�U�d��另外一个线�E�里面，Rimi回调的时候唤醒更新线�E�，更新后视图还是不能跟着滚动位置变；���快捷键的响应也修改一下，自己不作更新�Q�也是唤醒更新线�E�，�q�个�Ҏ(gu��)��也变得不灵了�Q�囧�Q�这可以说明问题跟Rimi�U�程无关�?br><br>��N��说线�E�调用才�?#8220;万恶之源&#8221;�Q�把之前做的那个Demo���改了一把，�U�程做刷斎ͼ�按键响应只唤醒更新线�E�，果然不灵了！上网google了一把，关键�?#8220;mfc �U�程 操作控�g&#8221;�Q�首先映入眼帘的是《MFC中跨�U�程操作控�g会不会出现像C#中的异常问题?》。这时候我也不兛_���q�个帖子的内容了�Q�线�E�操作控件有异常是吧�Q�那��׃��用线�E�做咯！�q�时候我才回惌��vWIN32里面有自定义消息�q�玩意，MFC里面�l�定一个消息ID�Q�ON_MESSAGE�l�定一个处理函敎ͼ�PostMessage或SendMessage来发消息�Q�然后由WIN32自己的消息��@环来调用处理函数�Q�这样应该是可以保证用非Rimi�U�程来更新设备树的。再一�ơ把Demo���改了一把，按键响应Post一个自定义消息�Q�消息处理函数做��h���Q�结果是对的�Q�再改，按键响应唤醒�U�程�Q�线�E�里面Post自定义消息，�l�果也是对的�?br><br>原以为是控�g使用问题�Q�又以�ؓ是Rimi不兼定w��题，最后实质�ؓMFC跨线�E���用控件的问题。其实我也不清楚�q�是不是真正的问题，毕竟我MFC既不懂又用得���。That's all!<br><br>最后附上我的测试代�?br><a  href="http://www.shnenglu.com/Files/neverwinter/testtree.rar">http://www.shnenglu.com/Files/neverwinter/testtree.rar</a><br> <img src ="http://www.shnenglu.com/neverwinter/aggbug/115853.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2010-05-19 23:22 <a href="http://www.shnenglu.com/neverwinter/archive/2010/05/19/115853.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>对象自杀</title><link>http://www.shnenglu.com/neverwinter/archive/2009/10/26/99521.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Mon, 26 Oct 2009 13:29:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2009/10/26/99521.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/99521.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2009/10/26/99521.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/99521.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/99521.html</trackback:ping><description><![CDATA[最�q�做��目写代码遇��C��对象自杀的问题�?br><br>�W�一个是自己设计的，对象持有定时器，自己�l�护生命周期�?br><br>�W�二个是无意中遇到的�Q�由于采用boost的线�E�库�Q�将成员函数变�ؓ�U�程用，最后在一堆调用之后居然把自己杀掉了�?br><br>很不�q�的是，在过�E�中都遇��C��相同的问题——堆栈挂掉了�?br><br>然后一轮定位，居然都是boost mutex的问题，scoped_lock很容易让人放松警惕�?br><br>
<div style="border: 1px solid #cccccc; padding: 4px 5px 4px 4px; background-color: #eeeeee; font-size: 13px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: #0000ff;">void</span><span style="color: #000000;">&nbsp;XXX(<img src="http://www.shnenglu.com/Images/dot.gif">)<br>{<br>&nbsp;&nbsp;&nbsp;&nbsp;boost::recuisive_mutex::scoped_lock&nbsp;lk(m_mutex);<br><br>&nbsp;&nbsp;&nbsp;&nbsp;<img src="http://www.shnenglu.com/Images/dot.gif"><img src="http://www.shnenglu.com/Images/dot.gif"><br><br>&nbsp;&nbsp;&nbsp;&nbsp;YYYY();<br><br>&nbsp;&nbsp;&nbsp;&nbsp;<img src="http://www.shnenglu.com/Images/dot.gif"><img src="http://www.shnenglu.com/Images/dot.gif"><br>}<br><br></span><span style="color: #0000ff;">void</span><span style="color: #000000;">&nbsp;YYY(<img src="http://www.shnenglu.com/Images/dot.gif">)<br>{<br>&nbsp;&nbsp;&nbsp;&nbsp;<img src="http://www.shnenglu.com/Images/dot.gif"><img src="http://www.shnenglu.com/Images/dot.gif"><br><br>&nbsp;&nbsp;&nbsp;&nbsp;delete&nbsp;p;// 释放XXX所在对�?br><br>&nbsp;&nbsp;&nbsp;&nbsp;<img src="http://www.shnenglu.com/Images/dot.gif"><img src="http://www.shnenglu.com/Images/dot.gif"><br>}</span></div>
<br>作�ؓ�c�L��员的mutex没有被解锁，然后所在的�c�d��被释放了�Q�这���造成了堆栈挂掉�?br><br>对象自杀昄���不是一�U�很好的风格�Q�还是尽量避免吧�Q?br><br> <img src ="http://www.shnenglu.com/neverwinter/aggbug/99521.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2009-10-26 21:29 <a href="http://www.shnenglu.com/neverwinter/archive/2009/10/26/99521.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>��目之苦</title><link>http://www.shnenglu.com/neverwinter/archive/2009/09/19/96706.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Sat, 19 Sep 2009 04:54:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2009/09/19/96706.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/96706.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2009/09/19/96706.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/96706.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/96706.html</trackback:ping><description><![CDATA[&nbsp;此文章涉嫌各�U�敏感，已被博主删除~<img src ="http://www.shnenglu.com/neverwinter/aggbug/96706.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2009-09-19 12:54 <a href="http://www.shnenglu.com/neverwinter/archive/2009/09/19/96706.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>fstream改写文�g</title><link>http://www.shnenglu.com/neverwinter/archive/2009/09/14/96125.html</link><dc:creator>nelson</dc:creator><author>nelson</author><pubDate>Mon, 14 Sep 2009 06:40:00 GMT</pubDate><guid>http://www.shnenglu.com/neverwinter/archive/2009/09/14/96125.html</guid><wfw:comment>http://www.shnenglu.com/neverwinter/comments/96125.html</wfw:comment><comments>http://www.shnenglu.com/neverwinter/archive/2009/09/14/96125.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/neverwinter/comments/commentRss/96125.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/neverwinter/services/trackbacks/96125.html</trackback:ping><description><![CDATA[��目中有�q�样的需求：<br>1.�l�一个一定大���的�I�文件改写内容；<br>2.不能改变该空文�g的大����?br><br>一开始是用ofstream做的�Q�但是每�ơ一打开文�g�Q�原来的�I�文件的大小���改变了。之后用app方式打开�Q�但是每�ơ的新数据都是追加到文�g���N���Q�seekp无论如何不能到达实际文�g的首部，�q�样文�g大小���变了，不符合需�?�?br><br>后来发现用fstream�Q�采用in | out的方式来打开�Q�终于可以安全地改写文�g了�?br><br> <img src ="http://www.shnenglu.com/neverwinter/aggbug/96125.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/neverwinter/" target="_blank">nelson</a> 2009-09-14 14:40 <a href="http://www.shnenglu.com/neverwinter/archive/2009/09/14/96125.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>                                                                                                                     <footer>
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