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Robots

Robots是网站跟爬虫间的协议,用简单直接的txt格式文本方式告诉对应的爬虫被允许的权限,也就是说Robots.txt是搜索引擎中访问网站的时候要查看的第一个文件。当一个搜索蜘蛛访问一个站点时,它会首先检查该站点根目录下是否存在Robots.txt,如果存在,搜索机器人就会按照该文件中的内容来确定访问的范围;如果该文件不存在,所有的搜索蜘蛛将能够访问网站上所有没有被口令保护的页面。
  • a Robots book for people who don t know the first thing about robotics! Absolute Beginner s Guide to

    a Robots book for people who don t know the first thing about robotics! Absolute Beginner s Guide to Robots is well-written, inviting, and action-packed, with engaging ideas and fascinating factoids about Robots and robot-related arts and sciences.

    标签: Absolute Beginner robotics Robots

    上传时间: 2017-07-06

    上传用户:ggwz258

  • Designing Autonomous Mobile Robots

    Designing Autonomous Mobile Robots

    标签: Autonomous Designing Mobile Robots

    上传时间: 2017-08-06

    上传用户:515414293

  • ZOJ 1065 Robots.不算太难,比较麻烦而已吧.

    ZOJ 1065 Robots.不算太难,比较麻烦而已吧.

    标签: Robots 1065 ZOJ 比较

    上传时间: 2014-01-09

    上传用户:pkkkkp

  • 采用TÜV认证的FPGA开发功能安全系统

    This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving Robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 图Figure 1. Local Safety System

    标签: FPGA 安全系统

    上传时间: 2013-11-05

    上传用户:维子哥哥

  • 采用TÜV认证的FPGA开发功能安全系统

    This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving Robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 图Figure 1. Local Safety System

    标签: FPGA 安全系统

    上传时间: 2013-11-14

    上传用户:zoudejile

  • 1、锁定某个主题抓取; 2、能够产生日志文本文件

    1、锁定某个主题抓取; 2、能够产生日志文本文件,格式为:时间戳(timestamp)、URL; 3、抓取某一URL时最多允许建立2个连接(注意:本地作网页解析的线程数则不限) 4、遵守文明蜘蛛规则:必须分析Robots.txt文件和meta tag有无限制;一个线程抓完一个网页后要sleep 2秒钟; 5、能对HTML网页进行解析,提取出链接URL,能判别提取的URL是否已处理过,不重复解析已crawl过的网页; 6、能够对spider/crawler程序的一些基本参数进行设置,包括:抓取深度(depth)、种子URL等; 7、使用User-agent向服务器表明自己的身份; 8、产生抓取统计信息:包括抓取速度、抓取完成所需时间、抓取网页总数;重要变量和所有类、方法加注释; 9、请遵守编程规范,如类、方法、文件等的命名规范, 10、可选:GUI图形用户界面、web界面,通过界面管理spider/crawler,包括启停、URL增删等

    标签: 日志

    上传时间: 2013-12-21

    上传用户:wang5829

  • Multirobot Plan Generation in a Continuous Domain: Planning by Use of Plan Graph and Avoiding Coll

    Multirobot Plan Generation in a Continuous Domain: Planning by Use of Plan Graph and Avoiding Collisions Among Robots

    标签: Plan Multirobot Generation Continuous

    上传时间: 2015-12-03

    上传用户:王者A

  • Robotics TOOLBOX The Toolbox provides many functions that are useful in robotics including such thi

    Robotics TOOLBOX The Toolbox provides many functions that are useful in robotics including such things as kinematics, dynamics, and trajectory generation. The Toolbox is useful for simulation as well as analyzing results from experiments with real Robots. Have fun with the toolbox. It is self-explanatory and very (robotics) user friendly...see the robot.pdf

    标签: functions including Robotics provides

    上传时间: 2014-12-05

    上传用户:yyyyyyyyyy

  • MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight

    MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight using giant Robots, tanks, and/or infantry on a hex-based map.

    标签: BattleTech turn-based boardgame networked

    上传时间: 2016-03-13

    上传用户:Breathe0125

  • PTypes (C++ Portable Types Library) is a simple alternative to the STL that includes multithreading

    PTypes (C++ Portable Types Library) is a simple alternative to the STL that includes multithreading and networking. It defines dynamic strings, variants, character sets, lists and other basic data types along with threads, synchronization objects, IP sockets and named pipes. PTypes also offers message queues as an alternative method of thread synchronization. Its main `target audience is developers of complex network daemons, Robots or non-visual client/server applications of any kind

    标签: multithreading alternative Portable includes

    上传时间: 2016-03-25

    上传用户:lz4v4