@1: Q: What does ROA look like?Since ROA means which ASes are allowed for originating routes to some specific address spaces. So I think there maybe many ASes corresponding to a specific address space. A: No, actually the format of ROA is like this:…

一.定义 定义时注意:xml元素是区分大小写的. <web-app></web-app> 这些必须小写 二.url-pattern 1)url-pattern 的值必须以/或者*.开头 <servlet> <servlet-name>TestName</servlet-name> <servlet-class>sedion.jeffli.servlet.AServlet</servlet-class> </servl…

Everyone wants to be successful. Today I would like to share three simple key points of success. Number one is: Know what you are doing. Number two is: Love what you are doing.Number three is: Believe what you are doing. If you follow these three key…

Simple Examples => http://csharp.net-informations.com/datagridview/csharp-datagridview-readonly-column.htm MSDN Examples => http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview(v=vs.110).aspx Class generator for DataGridView =&g…

TreeView keep selected node highlighted public QualityCheck() { InitializeComponent(); //trvIndexName.HideSelection = false; //trvIndexName.SelectedNode.BackColor = Color.BlueViolet; // cause DLL problem trvIndexName.DrawMode = TreeViewDrawMode.Owner…

In a typical multiple-tier implementation, the steps for creating and refreshing a DataSet, and in turn, updating the original data are to: Build and fill each DataTable in a DataSet with data from a data source using a DataAdapter. Change the data i…

1.  Uniform 1.1.  Uniform变量 不是所有的变量都是跟顶点一一对应的,如变换矩阵,光源位置等. Uniform变量可以在任何类型的shader中使用,但只能作为输入值,不能在shader中给它赋值,只能在C/C++程序中指定. layout (location = 0) in vec3 VertexPosition; layout (location = 1) in vec3 VertexColor; out vec3 Color; uniform mat4 Rotatio…

1.  Shader起步 1.1.  可编程管线 仅考虑Vertex shader和fragment shader: 1.2.  Shader Object 在编译阶段生成,把shader源代码编译成Shader 对象. Shader对象分类 Vertex Shader Fragment Shader Geometry Shader Tess EvaluationShader Tess ControlShader API: glCreateShader glCompileShader glDel…

Shader和Program Program Link过后,Shader就可以从Program中Detach并删掉.这样是不是可以节省一点点显存呢? 链接到同一个program的vertex和fragment shader,如果有相同名字的uniform,那么uniform的地址是共享的,即是一个uniform. glBufferData和glBufferSubData的区别 glBufferData会重新分配内存 glBufferSubData不分配内存,覆盖以有的内存. GL_STATIC_…

一.配置jsp页面 [jsp-config]中有两个子元素[taglib][jsp-property-group],注意,前者必须出现在后者之前. ①[taglib]替代jsp页面中taglib指令 <jsp-config> <taglib> <taglib-uri>/taglibtest</taglib-uri> <taglib-location>/WEB-INF/tlds/test-tags.tld</taglib-location&g…

Why Deep Learning Works – Key Insights and Saddle Points A quality discussion on the theoretical motivations for deep learning, including distributed representation, deep architecture, and the easily escapable saddle point. By Matthew Mayo. This post…

key points: 1. group by key and sort by using distribute by and sort by. 2. get top k elements by a UDF (user defined function) RANK ---------Here is the source code.-------------- package com.example.hive.udf;import org.apache.hadoop.hive.ql.exec.UD…

一般来说著名的linux系统基本上分两大类: 1.RedHat系列:Redhat.Centos.Fedora等 2.Debian系列:Debian.Ubuntu等 RedHat 系列 1 常见的安装包格式 rpm包,安装rpm包的命令是“rpm -参数” 2 包管理工具 yum 3 支持tar包 Debian系列 1 常见的安装包格式 deb包,安装deb包的命令是“dpkg -参数” 2 包管理工具 apt-get 3 支持tar包 tar 只是一种压缩文件格式,所以,它只是把文件压缩打包而已…

本文转自:http://andrewlock.net/an-introduction-to-oauth-2-using-facebook-in-asp-net-core/ This is the next post in a series on authentication and authorisation in ASP.NET Core. In this post I look in moderate depth at the OAuth 2.0 protocol as it pertain…

A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…

总所周知,Redhat和Fedora的软件安装命令是rpm,但是用rpm安 装软件最大的麻烦就是需要手动寻找安装该软件所需要的一系列依赖关系,超级麻烦不说,要是软件不用了需要卸载的话由于卸载掉了某个依赖关系而导致其他的软 件不能用是非常恼人的.令人高兴的是,Fedora终于推出了类似于ubuntu中的apt的命令yum,令Fedora的软件安装变得简单容易.yum有一下特点:*可以同时配置多个资源库(Repository)*简洁的配置文件(/etc/yum.conf)*自动解决增加或删除rpm包…

When we setup source control server, we should always make a backup and restore plan for it. This article is to describe how to backup and restore a TFS Express instance from one server to another server. This blog is an English version, for Chinese…

Undo/Redo for Qt Tree Model eryar@163.com Abstract. Qt contains a set of item view classes that use a model/view architecture to manage the relationship between data and the way it is presented to the user. The separation of functionality introduced…

ModelDataExchange - Import eryar@163.com Abstract. The ModelDataExchange import utility enables the user to import geometric models of equipment into 3D models within Design. The input models files format are STEP, IGES, STL .etc. The imported model…

本文转载自:https://wincent.com/wiki/@executable_path,_@load_path_and_@rpath.个人觉得写的很不错,简洁明了. Absolute paths Useful for frameworks installed in shared locations. Example: Install path: /Library/Frameworks/Foo.framework/Versions/A/Foo @executable_path Useful…

Intro Sometime we want to record cmd and outputs in the interactive shell sessions. However history cmd cannot do this. So we need cmd line recording tool like script and scriptreplay. References Master's Shoulder:How to Record and Replay Linux Termi…

A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…

项目有时要用一些Ajax的效果,因为比较简单,也就没有去用什么Ajax.NET之类的东西,手写代码也就实现了.. 第二天,有人向我报告错误:说是只有第一次读取的值正常,后面的值都不正常:我调试了一下 ,确实有这样的问题,查出是因为AJAX缓存的问题:解决办法有如下几种:       1.在服务端加 header("Cache-Control: no-cache, must-revalidate");(如PHP中) 2.在ajax发送请求前加上 anyAjaxObj.setRequest…

写在粘贴复制前:英文的感觉也可以,也能看的懂,多看看英文资料没坏处的 Problem. You have questions about the List collection in the .NET Framework, which is located in the System.Collections.Generic namespace. You want to see examples of using List and also explore some of the many use…

Docker Introduction to Docker Monitoring Database MongoDB: The Good, The Bad, and The Ugly Web 4 Keys to a Clean Angular Implementation Vue.js server side rendering with ASP.NET Core Tips and Tricks for Debugging Client-side JavaScript JavaScript for…

一般来说著名的 linux 系统基本上分两大类: RedHat系列:Redhat.CentOS.Fedora等 Debian系列:Debian.Ubuntu等 RedHat 系列 1 常见的安装包格式 rpm包,安装rpm包的命令是“rpm -参数” 2 包管理工具 yum 3 支持tar包 Debian系列 1 常见的安装包格式 deb包,安装deb包的命令是“dpkg -参数” 2 包管理工具 apt-get 3 支持tar包 tar 只是一种压缩文件格式,所以,它只是把文件压缩打包而已.r…

[英语魔法俱乐部——读书笔记] 2 中级句型-复句&合句(Complex Sentences.Compound Sentences):(2.1)名词从句.(2.2)副词从句.(2.3)关系从句.(2.4)对等连接词与对等从句 2.0 中级句型-复句&合句 2.0.1 复句(Complex Sentences):将一个句子改造成类似名词.形容词.副词的形态,并放到另一个句子中使用,该句子就称为从属从句,另一句则称为主要从句,而合并后的具有主从之分的句子就称为复句.复句的从属从句主要有:名词从…

原文地址:http://blog.jhades.org/how-does-spring-transactional-really-work/ In this post we will do a deep dive into Spring transaction management. We will go over on how does @Transactional really works under the hood. Other upcoming posts will include:…

What is EI? Enterprise Integration (EI) is a business computing term for the plans, methods, and tools aimed at modernizing, consolidating, and co-coordinating the computer applications in an enterprise. EI Levels Data Level Integrates and synchroniz…

from:http://blogs.msdn.com/b/security_trimming_in_sharepoint_2013/archive/2012/10/29/creating-custom-connector-sending-claims-to-sharepoint-2013.aspx What You Will Learn This blog entry describes how to take an existing custom XML connector to the Se…