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在与 SQL Server 建立连接时出现与网络相关的或

在与SQLServer建立连接时出现与网络相关的或特定于实例的错误。未找到或无法访问服务器。请验证实例名称是否正确并且SQLServer已配置为允许远程连接。(provider:命名管道提供程序,error:40-无法打开到SQLServer的连接)说明:执行当前Web请求期间，出现未处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。异常详细信息:System.Data.SqlClient.SqlException:在与S

系统 2019-08-12 01:53:04 2743

编程技术

sql材料分级统计及汇总案例参考

--第一步：根据系统编号、列、单价分组求和selectCLBH,DJ,sum(SL)asSL,sum(JE)asJE,Lieinto#TempSZCMXfrom#ShouZhiCunMingXigroupbyLie,CLBH,DJorderbyLie,CLBH--第二步：列转行,分组求和insertinto#TempLastResultsSELECTYJ,EJ,MoJi=(CASEWHENgrouping(YJ)=1THEN'0'WHENgrouping(

系统 2019-08-12 01:33:40 2743

Linux

Linux学习笔记24——进程管道

一管道的作用通常把一个进程的输出通过管道连接到另一个进程的输入。二popen和pclose函数#includeFILE*popen(constchar*command,//是要运行的程序名和相应的参数constchar*open_mode//必须是“r”或者“w”,如果是其它值，errno将返回EINVAL);intpclose(FILE*stream_to_close);popen()函数通过创建一个管道，调用fork产生一个子进程，执

系统 2019-08-12 01:32:41 2743

编程技术

Dynamics CRM 查看错误日志

在使用DynamicsCRM开发的过程当中，可能由于某次的的失误导致系统出现问题（如下图），那么找到错误原因是当前首要的任务，那么此时，CRM的错误日志就显现出解决问题的重要性了。步骤很简单：1.打开CRM服务器的服务管理器，单击DiagonsticsàEventVieweràWindowsLogsàApplication，就可以在Log列表中找到CRM异常。DynamicsCRM查看错误日志

系统 2019-08-12 01:32:13 2743

Python

Python使用PyQtGraph绘制股票行情K线图

PyQtGraph是Python平台上一种功能强大的2D/3D绘图库，相对于matplotlib库，由于其在内部实现方式上，使用了高速计算的numpy信号处理库以及Qt的GraphicsView框架，因此它在大数据量的处理及快速显示方面有着天然的优势，非常适合于需要快速绘图更新、视频或实时交互性的操作场合，在数学、科学和工程领域都有着广泛的应用。K线图介绍对于股票交易者来讲，K线图是弄清股票一段时间走势的一种最基本的图形工具，K线分为阳线和阴线，阳线和阴线

系统 2019-09-27 17:45:49 2742

编程技术

面向B2C电子商务系统的创新物流跟踪解决方案

面向B2C电子商务系统的创新物流跟踪解决方案亲爱的电子商务网站：NiceTrack.cn为您提供最专业最具有创新性的“快递物流跟踪解决方案”，为B2C网站提供可集成的快递跟踪服务，通过集成和使用可以给客户更好的体验，改善服务品质，减少售后服务成本，维护电商形象。集成效果如下图所示(来源于“左岸女人”)：如上图所示的效果，NiceTrack.cn为电商网站提供最专业，最集中的“快递物流跟踪”数据查询服务。集成"快递跟踪服务"能带来如下好处：1、提升客户体验:

系统 2019-08-29 23:44:51 2742

Javascript

用fason的参数化定时器在javascript中模拟多线程

原帖子发表在http://community.csdn.net/Expert/TopicView.asp?id=4069144author:emu(黄希彤)有csdn的朋友把http://community.csdn.net/Expert/TopicView.asp?id=3191873给翻了出来，这样在javascript中模拟多线程又有了更漂亮的做法了：1emu--用fason的参数化定时器模拟多线程</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 23:22:52</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">2742</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/18815" title="多小的距离才能遇见彼此" target="_blank" onclick="return recordId('',)">多小的距离才能遇见彼此 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/18815" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/1.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/18815';}else{window.open('/article/18815');}" style="cursor: pointer;">点击这里使用RSS订阅本Blog：<linktitle="RSS2.0"type="application/rss+xml"href="http://feed.feedsky.com/softwave"rel="alternate"><scriptlanguage="javascript"> </p> </article><article class="excerpt"> <header> <a title="Android" class="label label-important zj-del-target" href="/category/57">Android<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/18504" title="Android进阶：打jar包获取assets中的资源解决s" target="_blank" onclick="return recordId('',)">Android进阶：打jar包获取assets中的资源解决s </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/18504" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/18.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/18504';}else{window.open('/article/18504');}" style="cursor: pointer;">大家都知道Android项目中的res目录中的资源eclipse插件会在gen中自动生成相应的id应用，这样就统一了资源管理那么这种自动生成的id就是写死的东西了这就导致了不容易做修改项目中需要将现有的组件打成jar包这样打包后类文件当然是肯定没问题但是资源文件就不行了。这个地方的id不能在新建的项目中被应用了所以资源文件不能被打到res目录中，这种情况下就必须要打到assets目录中这样就会出现问题了一般情况下我们应用资源文件是通过int型的id来引用的</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 23:07:17</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">2742</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/16049" title="对简单面板的一些简单理解" target="_blank" onclick="return recordId('',)">对简单面板的一些简单理解 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/16049" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/19.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/16049';}else{window.open('/article/16049');}" style="cursor: pointer;">很久很久之前便对那面板“心仪”已久，看着如此多的大鸟在三五分钟内啪啪啪的搞定一个所谓的板子，心里煞是佩服，那份“敬仰“犹如岳麓山那么的高，犹如湘江水那么深（说的是旺季，不是干枯季节）。其实，敲一个画板对我来说还真不容易，就像那丫丫学步（到底是哪个ya也搞不清了，这次就从了搜狗了），貌似可以走，其实不敢走，其实也是不能走，因为老摔跤，所以就压压在学了。理其实蛮好懂的，只有摔过跤才晓得那一步应该怎样抬脚，怎样滑出，怎样着陆。活了这么个年头这一次又得压压的学一次</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 22:36:14</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">2742</span></span>  </p> </article><div class="pagination" style="display:;"> 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