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编程技术

Ext.ux.UploadDialog.Dialog Ext上传

今天做项目做了个上传的功能，不过遇到好多问题，先在这做个笔记。。。。先引入Java代码

系统 2019-08-12 09:29:54 3595

编程技术

扩展 HTMLParser 对自定义标签的处理能力

文档选项打印本页将此页作为电子邮件发送

数据库相关

poj 2586 Y2K Accounting Bug (贪心)

Y2KAccountingBugTimeLimit:1000MSMemoryLimit:65536KTotalSubmissions:8678Accepted:4288DescriptionAccountingforComputerMachinists(ACM)hassufferredfromtheY2KbugandlostsomevitaldataforpreparingannualreportforMSInc.Allwhattheyrememberis

系统 2019-08-12 01:54:22 3594

Python

递推最小二乘法——python程序

算法引用的数据为python自带的波士顿房价数据。代码如下：#data第一列为标记值#data后几列为特征向量#initialTheta为需要求得的thetaimportnumpyasnpimportsklearn.datasetsfromsklearn.model_selectionimporttrain_test_splitfromsklearn.metricsimportmean_squared_errorimportmatplotlibasmpli

系统 2019-09-27 17:56:20 3593

PHP

用php读取和编写xml dom(使用 DOM 库、SAX 解析

有许多技术可用于用PHP读取和编写XML。本文提供了三种方法读取XML：使用DOM库、使用SAX解析器和使用正则表达式。还介绍了使用DOM和PHP文本模板编写XML。

Ubuntu

Ubuntu10.10环境变量设置

a.下载jdk安装文件，这里下载bin格式，复制安装文件至/home/java下b.使用"chmod777"或"chomd+x"向文件添加可执行权限sudochomd+xjdk-6u23-linux-i586.binc.运行该文件sudo./jdk-6u23-linux-i586.bin运行后，程序会自动解压缩，并生成相应目录。到此，jdk安装已经完成.d.环境变量的添加：打开/etc/profile,在umask022”前添加如下内容：exportJAV

系统 2019-08-12 01:32:57 3593

编程技术

轻量级B/S应用开发引擎：NoahWeb

同事介绍，说一款BS开发引擎比较强大，处理表单之类的比较不错，今天找来看看。网址：http://www.noahweb.net/帮助：http://docs.noahweb.net/看看他们网站上怎么介绍的：//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

系统 2019-08-29 23:54:03 3592

ASP.NET

ASP.NET服务器控件开发（3）--事件和回传数据的

前两篇介绍了服务器控件的基本显示，属性的设定，继承Webcontrol开发控件等内容，这篇介绍下定制服务器控件的事件的处理和回传数据的处理。当ASP.NET页面处理回传到服务器端的表单时，两种信息会传递给页面中的控件：回传事件，如Button一类控件触发的回传，会引发服务器端事件；回传数据：是Web表单中包含的数据，该数据是在Web表单提交到服务器端时传递给如TextBox一类的控件。处理回传数据PostBack（回传）：ASP.NET控件提交表单到服务器

系统 2019-08-29 23:32:49 3592

Javascript

JavaScript 的性能优化：加载和执行

概览无论当前JavaScript代码是内嵌还是在外链文件中，页面的下载和渲染都必须停下来等待脚本执行完成。JavaScript执行过程耗时越久，浏览器等待响应用户输入的时间就越长。浏览器在下载和执行脚本时出现阻塞的原因在于，脚本可能会改变页面或JavaScript的命名空间，它们对后面页面内容造成影响。一个典型的例子就是在页面中使用document.write()。例如清单1清单1JavaScript代码内嵌示例Sou</span> <p class="auth-span"> <span class="muted"><i class="fa fa-user"></i><span class="zj-icon-text">系统</span></span> <span class="muted"><i class="fa fa-clock-o"></i><span class="zj-icon-text">2019-08-29 22:50:45</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">3592</span></span>  </p> </article><article class="excerpt"> <header> <a title="编程技术" class="label label-important zj-del-target" href="/category/30">编程技术<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/12182" title="使用FFMPEG SDK解码流数据获得YUV数据及其大小" target="_blank" onclick="return recordId('',)">使用FFMPEG SDK解码流数据获得YUV数据及其大小 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/12182" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/6.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/12182';}else{window.open('/article/12182');}" style="cursor: pointer;">本文以H264视频流为例，讲解解码流数据的步骤。为突出重点，本文只专注于讨论解码视频流数据，不涉及其它（如开发环境的配置等）。如果您需要这方面的信息，请和我联系。准备变量定义AVCodecContext。如果您使用类，可以定义成类成员。我这里定义成全局变量。staticAVCodecContext*g_pCodecCtx=NULL;定义一个AVFrame，AVFrame描述一个多媒体帧。解码后的数据将被放在其中。staticAVFrame*g_pavfFr</span> <p class="auth-span"> <span class="muted"><i class="fa fa-user"></i><span class="zj-icon-text">系统</span></span> <span class="muted"><i class="fa fa-clock-o"></i><span class="zj-icon-text">2019-08-12 09:30:12</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">3592</span></span>  </p> </article><div class="pagination" style="display:;"> <ul><li><a href="/search/column/1/p/1">首页</a></li> <li class="prev-page"><a href="/search/column/1/p/184">上一页</a></li> 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