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Contribute some useful custom control: XList

InmyVCMFCdevelopexpericence,IalwaysfindthatitisreallypooroftheCtrlsthatmicrosoftprovided,butwehavenomuchprojectbudgettobugabeautifulthird-ctrl.SosometimesweneeddosomeworktomodifythestandardControl.Forthepurposeofreuse,Ihavemylibra

系统 2019-08-29 22:24:43 3046

CSS

16 个新鲜的 CSS3 在线教程

用CSS3制作令人印象深刻的产品展示使用jQuery和CSS3制作闪亮的旋钮控制使用CoffeeScript创建一个类iOS的界面使用CSS3制作报纸阅读制作一个CSS3动画菜单使用jQuery和CSS3制作更好的元素选择CSS3多级菜单，具有动画效果制作你的第一个Chrome扩展BounceBox提示插件色彩多样的滑动块使用jQuery和CSS3创建一个音频播放器CSS3和jQuery项目的模糊效果CSS3制作的动画按钮CSS3制作的圆形导航效果创建一个

系统 2019-08-12 09:29:55 3046

SqlServer

JDBC操纵数据库的步骤（以SQLServer为例）

JDBC的简介JDBC（JavaDataBaseConnectivity,java数据库连接）是一种用于执行SQL语句的JavaAPI，可以为多种关系数据库提供统一访问，它由一组用Java语言编写的类和接口组成。JDBC为工具/数据库开发人员提供了一个标准的API，据此可以构建更高级的工具和接口，使数据库开发人员能够用纯JavaAPI编写数据库应用程序，操作不同的数据库需要使用不同的JDBC。JDBC编程步骤一、LoadtheDriver加载JDBC驱动程

系统 2019-08-12 01:53:53 3046

数据库相关

update-alternatives命令详解

转载:http://blog.csdn.net/maixia24/article/details/11707289update-alternatives是ubuntu系统中专门维护系统命令链接符的工具，通过它可以很方便的设置系统默认使用哪个命令、哪个软件版本，比如，我们在系统中同时安装了openjdk和sunjdk两个版本，而我们又希望系统默认使用的是sunjdk，那怎么办呢？通过update-alternatives就可以很方便的实现了。sudoupda

系统 2019-08-12 01:53:52 3046

数据库相关

SZU : A11 Sequence

DescriptionWearegivenaintegersequence,yourjobisfindthelengthofthelongestcontiguoussubsequencethatisstrictlyincreasingorstrictlydecreasing.InputFirstnumber,representhowmanytestcases.Foreachtestcasethefirstnumberis.Thenpositiveinteg

系统 2019-08-12 01:53:22 3046

Python

对Python 中矩阵或者数组相减的法则详解

最近在做编程练习，发现有些结果的值与答案相差较大，通过分析比较得出结论，大概过程如下：定义了一个计算损失的函数：deferror(yhat,label):yhat=np.array(yhat)label=np.array(label)error_sum=((yhat-label)**2).sum()returnerror_sum主要出现问题的是yhat-label部分，要强调的是一定要保证两者维度是相同的！这点很重要，否则就会按照python的广播机制进行

系统 2019-09-27 17:47:40 3045

编程技术

校验XHTML

校验XHTML关键字:校验XHTML1.XHTML校验校验网址：http://validator.w3.org/校验方式:网址校验、文件上传校验校验成功，会显示"ThisPageIsValidXHTML1.0Transitional!",如图：校验失败，会显示更多校验选项和错误信息，如图：一般选择"ShowSource"和"VerboseOutput"可以帮助你找到错误代码所在行和错误原因。XHTML校验常见错误原因对照表NoDOCTYPEFound!Fa

系统 2019-08-29 22:45:16 3045

编程技术

以一种"廉价"的方式获取页面的标题(downmoon)

有朋友问到：“我需要得到一个webpage的title，因为这个title一般都比较靠前，只要取得html的前面少量内容就可以了。因为要取得很多个页面的title,如果下载整个htmlcode，肯定比较浪费时间。.net好像没有现成的类可以干这件事情(取得部分html)，我应该如何去实现？”一种比较"廉价"(即较小成本条件下)的解决思路：第一步：取出含有页面title部分的最小集合。这是“廉价”的关键！第二步：用正则表达式取出和</title</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 22:21:16</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">3045</span></span>  </p> </article><article class="excerpt"> <header> <a title="各行各业" class="label label-important zj-del-target" href="/category/38">各行各业<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/9253" title="github搭建个人主页" target="_blank" onclick="return recordId('',)">github搭建个人主页 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/9253" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/12.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/9253';}else{window.open('/article/9253');}" style="cursor: pointer;">GitHubPages是由GitHub免费提供的静态空间托管服务，它利用Git技术方便快捷地部署网页文件，支持绑定个人域名。GitHubPages存在的本意是为了给开发者提供一处宣传和演示作品的地方，但只要你会用Git，就能够免费使用它，我的个人主页便是利用它搭建而成。准备：注册GitHub服务，下载安装GitforWindows（选择下载类似于Git-1.7.*-preview.exe的文件）打开安装好的GitBash，依次输入：gitconfig--g</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 09:26:48</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">3045</span></span>  </p> </article><article class="excerpt"> <header> <a title="SqlServer" class="label label-important zj-del-target" href="/category/46">SqlServer<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/7379" title="sql临时表:SQL Server中的临时表和表变量" target="_blank" onclick="return recordId('',)">sql临时表:SQL Server中的临时表和表变量 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/7379" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/9.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/7379';}else{window.open('/article/7379');}" style="cursor: pointer;">在SQLServer的性能调优中，有一个不可比拟的问题：那就是如何在一段需要长时间的代码或被频繁调用的代码中处理临时数据集?表变量和临时表是两种选择。在SQLServer的性能调优中，有一个不可比拟的问题：那就是如何在一段需要长时间的代码或被频繁调用的代码中处理临时数据集?表变量和临时表是两种选择。记得在给一家国内首屈一指的海运公司作SQLServer应用性能评估和调优的时候就看到过大量的临时数据集处理需求，而他们的开发人员就无法确定什么时候用临时表，什么</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 01:54:05</span></span> <span 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