博客园 - 代码乱了uuid:24b78886-0ed1-41c2-8670-e3f31dcf42c4;id=734942023-09-02T16:16:28Z代码乱了https://www.cnblogs.com/jintan/feed.cnblogs.comhttps://www.cnblogs.com/jintan/p/17674447.htmlMIT 18.06 线性代数 - 23微分方程,exp(At) - 代码乱了# 微分方程和$e^{At}$ ## 微分方程$\frac{\mathrm{d}u}{\mathrm{d}t}=Au$ 本讲主要讲解解一阶方程(first-order system)一阶导数(first derivative)常系数(constant coefficient)线性方程,上一讲介绍了如2023-09-02T16:10:00Z2023-09-02T16:10:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】# 微分方程和$e^{At}$ ## 微分方程$\frac{\mathrm{d}u}{\mathrm{d}t}=Au$ 本讲主要讲解解一阶方程(first-order system)一阶导数(first derivative)常系数(constant coefficient)线性方程,上一讲介绍了如 <a href="https://www.cnblogs.com/jintan/p/17674447.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/p/17674364.htmlMIT 18.06 线性代数 - 22. 对角化和矩阵的幂 - 代码乱了**关于斐波那契数列计算第n个数,使用矩阵特征向量和特征值求解:** Fibonacci 数列的定义是:$F(0)=0$,$F(1)=1$ 并且对于 $n>1$,$F(n)=F(n-1)+F(n-2)$。我们可以使用线性代数中的特征向量和特征值来求解 Fibonacci 数列。 首先,我们可以将 F2023-09-02T14:54:00Z2023-09-02T14:54:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】**关于斐波那契数列计算第n个数,使用矩阵特征向量和特征值求解:** Fibonacci 数列的定义是:$F(0)=0$,$F(1)=1$ 并且对于 $n>1$,$F(n)=F(n-1)+F(n-2)$。我们可以使用线性代数中的特征向量和特征值来求解 Fibonacci 数列。 首先,我们可以将 F <a href="https://www.cnblogs.com/jintan/p/17674364.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/p/5698974.html测试markdown发布 - 代码乱了2016-07-23T08:29:00Z2016-07-23T08:29:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】 <a href="https://www.cnblogs.com/jintan/p/5698974.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/p/win-cow-socks5-to-http-proxy.html使用cow将socks5代理转为http代理(Windows版) - 代码乱了windows很多软件都不支持socks5,经常也会需要配置http代理做更新上传包之类的操作, 之前看到这篇文章是Privoxy在linux下的教程,其实windows下也非常简单 首先下载win版的cow: http://dl.chenyufei.info/cow/latest/ 然后是配置根目2016-04-11T12:15:00Z2016-04-11T12:15:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】windows很多软件都不支持socks5,经常也会需要配置http代理做更新上传包之类的操作, 之前看到这篇文章是Privoxy在linux下的教程,其实windows下也非常简单 首先下载win版的cow: http://dl.chenyufei.info/cow/latest/ 然后是配置根目 <a href="https://www.cnblogs.com/jintan/p/win-cow-socks5-to-http-proxy.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/p/3804095.htmlvisual webgui theme designer - 代码乱了2014-06-23T07:26:00Z2014-06-23T07:26:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】 <a href="https://www.cnblogs.com/jintan/p/3804095.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2012/05/14/2500336.html健身视频 - 代码乱了2012-05-14T12:58:00Z2012-05-14T12:58:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】 <a href="https://www.cnblogs.com/jintan/archive/2012/05/14/2500336.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2012/01/01/2309395.html2012元旦遭遇坑爹的12306订票网站付了款不出票 - 代码乱了元旦一早6点爬起来帮朋友定票,铁道部也公布了消息称可以预定12天的票,好吧,我能忍受你的速度巨慢、卡等现象,只要能定到票苦点累点不要紧,终于熬到早上10点,看到有卧铺票,定了5张,共计1661块大洋,订单生成成功,提交订单,支付成功后,回到12306,看到订单还是待支付状态,我就有预感,这次铁定是出问题了,等了20分钟,45分钟过去了,依旧是未支付状态,然后订单被自动取消(据说是按规定下单后45分钟之内为支付的将自动取消)。一直打12306客服电话把我手机打停机都没有人接,彻底崩溃了,我的愤怒极限也爆发了,这次我算是彻底的服了铁道部。 据我在网上看到的情况,和我一样经历的人不在少数,至少...2012-01-01T04:25:00Z2012-01-01T04:25:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】元旦一早6点爬起来帮朋友定票,铁道部也公布了消息称可以预定12天的票,好吧,我能忍受你的速度巨慢、卡等现象,只要能定到票苦点累点不要紧,终于熬到早上10点,看到有卧铺票,定了5张,共计1661块大洋,订单生成成功,提交订单,支付成功后,回到12306,看到订单还是待支付状态,我就有预感,这次铁定是出问题了,等了20分钟,45分钟过去了,依旧是未支付状态,然后订单被自动取消(据说是按规定下单后45分钟之内为支付的将自动取消)。一直打12306客服电话把我手机打停机都没有人接,彻底崩溃了,我的愤怒极限也爆发了,这次我算是彻底的服了铁道部。 据我在网上看到的情况,和我一样经历的人不在少数,至少... <a href="https://www.cnblogs.com/jintan/archive/2012/01/01/2309395.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2011/06/25/2090167.html孤独神 - 代码乱了该文被密码保护。2011-06-25T06:19:00Z2011-06-25T06:19:00Z代码乱了https://www.cnblogs.com/jintan/该文被密码保护。https://www.cnblogs.com/jintan/archive/2011/05/26/2057895.htmlReportViewer 2008 打印出现Error loading resource library. (0x8007007E)和(0x80070006) - 代码乱了0x8007007E:之前一直正常使用的ReportViewer,最近打印时,莫名其妙的出现Error loading resource library. (0x8007007E)最后彻底删除才C:盘下的RSClientPrint*.* 文件,重新装控件后就又正常工作了,真是奇怪的问题当然,最快速找到 C:盘下的RSClientPrint*.* 的办法,莫过于用神器:EveryThing了(0x80070006)可能是打印服务没有启动导致2011-05-26T02:23:00Z2011-05-26T02:23:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】0x8007007E:之前一直正常使用的ReportViewer,最近打印时,莫名其妙的出现Error loading resource library. (0x8007007E)最后彻底删除才C:盘下的RSClientPrint*.* 文件,重新装控件后就又正常工作了,真是奇怪的问题当然,最快速找到 C:盘下的RSClientPrint*.* 的办法,莫过于用神器:EveryThing了(0x80070006)可能是打印服务没有启动导致 <a href="https://www.cnblogs.com/jintan/archive/2011/05/26/2057895.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2011/05/06/2039154.htmlSpire.XLS XXX记录 - 代码乱了该文被密码保护。2011-05-06T09:15:00Z2011-05-06T09:15:00Z代码乱了https://www.cnblogs.com/jintan/该文被密码保护。https://www.cnblogs.com/jintan/archive/2011/05/05/2037166.htmlVM.xPort.ExcelClient XXX备忘 - 代码乱了去掉ExcelConnection类中的几个构造函数中licenseManager.Verify()代码,去掉ExcelConnection.Open方法中的抛出异常:Open方法修改后的代码应该是publicoverridevoidOpen(){try{stringstr=y.d(this.GetType().AssemblyQualifiedName);if(str==null){}if(y.c(str)!=y.n){}this.l=ConnectionState.Connecting;this.a(this.i,this.p);this.l=ConnectionState.Open;}c2011-05-04T16:53:00Z2011-05-04T16:53:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】去掉ExcelConnection类中的几个构造函数中licenseManager.Verify()代码,去掉ExcelConnection.Open方法中的抛出异常:Open方法修改后的代码应该是publicoverridevoidOpen(){try{stringstr=y.d(this.GetType().AssemblyQualifiedName);if(str==null){}if(y.c(str)!=y.n){}this.l=ConnectionState.Connecting;this.a(this.i,this.p);this.l=ConnectionState.Open;}c <a href="https://www.cnblogs.com/jintan/archive/2011/05/05/2037166.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2011/03/29/1998878.htmlParsing html markup text using MSHTML - 代码乱了Introduction:Often working with content in the form of html, I have needed to manipulate the content intelligently. I accomplished this by using regular expressions to "parse" the html to find certain tags. This enabled me to look for certain tags with certain attributes, etc.This works we2011-03-29T07:32:00Z2011-03-29T07:32:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】Introduction:Often working with content in the form of html, I have needed to manipulate the content intelligently. I accomplished this by using regular expressions to "parse" the html to find certain tags. This enabled me to look for certain tags with certain attributes, etc.This works we <a href="https://www.cnblogs.com/jintan/archive/2011/03/29/1998878.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2011/03/23/1993286.htmlSerialize and Deserialize RDL - 代码乱了If you have a ReportViewer class generated from the XSD report definition file using:xsd.exe /c /namespace:Rdl ReportDefinition.xsdYou can serialize and deserialize the class to/from RDLC XML:xmldoc contains the XML RDLC code and is an XmlDocument.Deserialization, from XML to ClassRdl.Report report 2011-03-23T15:30:00Z2011-03-23T15:30:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】If you have a ReportViewer class generated from the XSD report definition file using:xsd.exe /c /namespace:Rdl ReportDefinition.xsdYou can serialize and deserialize the class to/from RDLC XML:xmldoc contains the XML RDLC code and is an XmlDocument.Deserialization, from XML to ClassRdl.Report report <a href="https://www.cnblogs.com/jintan/archive/2011/03/23/1993286.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2011/01/27/1946391.htmlWinform Field interface - 代码乱了using System;using System.Collections.Generic;using System.Linq;using System.Web;namespace Bronze.DEPSP.Complaint{ public interface IFormField { /// <summary> /// 表单字段名 /// </summary> string FieldName { get; set; } /// <summary> /// 控件值 /// </summary> object FieldValue { get;2011-01-27T09:44:00Z2011-01-27T09:44:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】using System;using System.Collections.Generic;using System.Linq;using System.Web;namespace Bronze.DEPSP.Complaint{ public interface IFormField { /// <summary> /// 表单字段名 /// </summary> string FieldName { get; set; } /// <summary> /// 控件值 /// </summary> object FieldValue { get; <a href="https://www.cnblogs.com/jintan/archive/2011/01/27/1946391.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2010/10/27/1862114.html转换前台javascript传递过来的时间字符串到.net的DateTime - 代码乱了javascript: var date=new Date().toString();得到的结果类似于:Wed Oct 27 2010 08:53:04 GMT+0800 如何在C#中把这个字符串转换为DateTime类型呢?[代码]2010-10-27T00:57:00Z2010-10-27T00:57:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】javascript: var date=new Date().toString();得到的结果类似于:Wed Oct 27 2010 08:53:04 GMT+0800 如何在C#中把这个字符串转换为DateTime类型呢?[代码] <a href="https://www.cnblogs.com/jintan/archive/2010/10/27/1862114.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2010/10/25/1860483.html开发备忘录 - 代码乱了该文被密码保护。2010-10-25T07:58:00Z2010-10-25T07:58:00Z代码乱了https://www.cnblogs.com/jintan/该文被密码保护。https://www.cnblogs.com/jintan/archive/2010/10/14/1851043.htmlSQL:获取正在执行的SQL语句 - 代码乱了代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--SELECTr.scheduler_idas排程器識別碼,statusas要求的狀態,r.session_idasSPID,r.blocking_session_idasBlkBy,substring...2010-10-14T02:57:00Z2010-10-14T02:57:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--SELECTr.scheduler_idas排程器識別碼,statusas要求的狀態,r.session_idasSPID,r.blocking_session_idasBlkBy,substring... <a href="https://www.cnblogs.com/jintan/archive/2010/10/14/1851043.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2010/10/12/1848487.html获取表结构信息的SQL - 代码乱了该文被密码保护。2010-10-12T01:23:00Z2010-10-12T01:23:00Z代码乱了https://www.cnblogs.com/jintan/该文被密码保护。https://www.cnblogs.com/jintan/archive/2010/09/09/1822440.htmlVSX vsct file context menu for script editor - 代码乱了代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--<?xmlversion="1.0"encoding="utf-8"?><CommandTablexmlns="http://schemas.microsoft.com/Visual...2010-09-09T08:34:00Z2010-09-09T08:34:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--<?xmlversion="1.0"encoding="utf-8"?><CommandTablexmlns="http://schemas.microsoft.com/Visual... <a href="https://www.cnblogs.com/jintan/archive/2010/09/09/1822440.html" target="_blank">阅读全文</a>https://www.cnblogs.com/jintan/archive/2010/08/23/1806362.html利用XML转换为table实现在SQL参数中传递表结构 - 代码乱了SQL 2005中,通常会用到在SQL参数中传递表结构,最简单的办法是利用XML转换为table代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--DECLARE@hINT,@XMLVARCHAR(8000),@2k5XMLSELECT@XML='&l...2010-08-23T05:24:00Z2010-08-23T05:24:00Z代码乱了https://www.cnblogs.com/jintan/【摘要】SQL 2005中,通常会用到在SQL参数中传递表结构,最简单的办法是利用XML转换为table代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--DECLARE@hINT,@XMLVARCHAR(8000),@2k5XMLSELECT@XML='&l... <a href="https://www.cnblogs.com/jintan/archive/2010/08/23/1806362.html" target="_blank">阅读全文</a>