robots coop

Objective-C basics: Basic knowledge of Object-Oriented Programming (OOP) (1) -- indirect, objective-coop Since Cocoa is based on the concept of OOP and Objective-C is also an object-oriented programming language, it is necessary to frequently discuss the concept of OOP when learning Objective-C. 0x01 what is indirect? Indirection is a key concept of OOP. It can be understood as "indirectly obtaining a value through a pointer in code, rather than dire

Baidu has never been able to crawl it since it used qiniu cloud's Robots. The diagnosis shows that robots is disabled. In robots, I use the default one provided by qiniu cloud. What's wrong? Baidu has never been able to crawl it since it used qiniu cloud's Robots. The diagnosis shows that

ZOJ--1654 -- Place the Robots [maximum bipartite matching], robots Link:Http://acm.zju.edu.cn/onlinejudge/showProblem.do? ProblemId = 654 Question:Robert is a famous engineer. One day, his boss assigned him a task. The background of the task is: Given a map of m × n size, the map consists of squares, there are three kinds of squares in the map-walls, lawns and open spaces, his boss hopes to put as many

To be honest, do the site for so long, what kind of things have been encountered, the most common is also the most let the webmaster headache is nothing but the site down the right, the main site key words down, the site snapshots do not update, the number of chain reduction and so on, these problems are often due to the initial stage of the preparatory work did not do, Caused by the late modification of the site plate or some other places, then today I and his family to discuss the changes in t

To do the site has been done for such a long time, webmaster can encounter things have met, the most common is nothing but the site is down right, the site snapshot does not update the main keyword rankings decline, and the number of outside chain to reduce, and so on, these problems are often due to the initial preparation of the site is not ready on the line results, Lead to the late replacement of the site plate or frequent changes to other spiders often crawling files caused by today's small

For website administrators and content providers, there are sometimes some website content that they do not want to be crawled by robots. To solve this problem, the robots Development Community provides two methods: robots.txt and the robots meta tag. I. robots.txt 1. What is robots.txt? Robots.txt is a plain text file that declares that the website does not wan

http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=654Title Description:Robert is a well-known engineer. One day, his boss assigned him a task. The background of the task is: given aA map of the size of MXN, the map is made up of squares, there are 3 kinds of squares in the map-walls, meadows and open space, his boss wantsCan place as many robots as possible in the map. Each robot is equipped with a laser gun that can be in four directions at

, should be written: disallow: *. Html. Sometimes we write these rules may have some not noticed the problem, now can through Baidu Webmaster Tools (zhanzhang.baidu.com) and Google Webmaster tools to test. Relatively speaking, Baidu Webmaster tools are relatively simple tools: 　　 　　 　　 The Baidu robots tool can only detect whether each line command conforms to grammatical rules, but does not detect actual effects

We know that search engines have their own "search bots", and they build their own databases by constantly crawling information on the web along the pages of links (typically HTTP and src links). for Web site managers and content providers, sometimes there will be some site content, do not want to be crawled by robots and open. To solve this problem, the robots development community offers two options: one

support nofollow, but still support the robots, the preparation of the appropriate robots can also solve the problem of Baidu cannot be resolved spam, that is, the links are directed to a designated directory, and then disallow this directory in a robots, you can let Baidu does not index, So that spam will not be harassed again. If you are also using the Z-blog

SEO optimization technology is not only in the content and outside the chain, more importantly, some of the details of the processing, because the content and outside the chain need to master the main points is not many, and easy to operate, easy to understand, while the site optimization of other details of the treatment, relatively less often contact, for these know very little, Really want to deal with a lot of problems, such as SEO optimization of the regular 404-page production, 301 redirec

Whether the robot will threaten the survival of natural human beings, this is a commonplace topic, so far, the activities of robots in human control, but also the impact on human society is basically positive, but the human fear of the robot has never stopped, with the development of artificial intelligence, big data, sensors and other technologies, The fear of robots has grown dramatically, especially when

Kitten today want to say is a webmaster small partners are very familiar with things: robots file, I believe that the small partners are not unfamiliar with this file! But the kitten found that many webmaster small partners have forgotten the importance of robots, Robots said very angry, the consequences are very serious. The cat's SEO are self-study, see the pro

Using Urllib's Robotparser module, we can realize the analysis of website Robots protocol.1. Robots AgreementRobots protocol is also called the Crawler Protocol, the robot protocol, the full name of the web crawler Exclusion standard, used to tell the crawler can search engine which pages can be crawled, which is not, usually a text file called robots.txt, generally placed in the root directory of the siteW

(1) Introduction to the robots exclusion protocol ProtocolWhen a robot accesses a Web site, such as http://www.some.com/, first check the file http://www.some.com/robots.txt. If the file exists, it will be analyzed according to the record format: User-Agent: * disallow:/cgi-bin/disallow:/tmp/disallow :/~ JOE/ To determine whether it should retrieve the site files. These records are specially viewed by web robot. Generally, viewers will never see this

Introduction to robots.txtRobots.txt is a plain text file in which the website administrator can declare that the website does not want to be accessed by robots, or specify a search engine to include only specified content. When a search robot (called a search spider) crawls a site, it first checks that the site root directory contains robots.txt. If so, the search robot determines the access range based on the content in the file. If the file does no

We know that search engines have their own "search bots", and they build their own databases by constantly crawling information on the web along the pages of links (typically HTTP and src links). For web site managers and content providers, sometimes there will be some site content, do not want to be crawled by robots and open. To solve this problem, the robots development community offers two options: one

user's heart rate, diet, exercise, sleep and other monitoring, and then collect the elderly and the patient's physiological data for professional medical institutions to provide reference services To improve the health management of the elderly and patients, especially for the elderly who are suffering from a gradual decline in the body's organs, this intelligent medical treatment can help them and prevent disease outbreaks, and good management of chronic disease.And with the advent of intellig

Finding a job is already a very good thing, not to mention the Iron Bowl. Now, according to a report just released today, Canadians are not only facing competition between people, but many jobs are likely to be replaced by robots over the next 10-20 years. Yes, robots have come to rob us of their jobs!The Brookfield College of Ryerson University in Toronto released a report today that 42% of Canada's jobs w

Very early promised to Ah bin write an article, thank him for one of my help, but until now also did not write out, a few days ago to see Zhuo Less asked a question about robots, for everyone to tidy up some of the situation of robots. robots.txt files are placed in the root directory of the site, is the search engine to visit the site to see the first file. When a search spider accesses a site, it first ch