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Tiobe Index (world rankings for programming languages) is a ranking that shows the relative trends of various programming languages, starting in 2001 and updating once a month. It calculates the search results for many sites to get statistical data. These sites include: Google,blogger,wikipedia,youtube,baidu,yahoo,bing,amazon and so on. PHP has been on the top of the Tiobe, but recently its ranking is even higher, 2012 is the 7th, now is 5th. This may be attributed to the release of the Zend Fr

1, popular software play shortcut keys: Fast forward and rewind: left, right arrow, respectively backward, forward jump 20s screen volume adjustment: Up and down arrows, respectively, improve, reduce volume mute: ctrl+m pause/playback: Space bar full Screen play/restore: Enter or mouse double-click play window 2, Popular boss key: popular interface for the activa

The biggest news media in these days is all about Liu Xiang's news, since August 7 popular in the London Olympic Games in the 110-meter hurdles in the preliminary round, after the accident, Liu Xiang's report has sprung up, on his fall incident, people from all walks of life to his view is also different, have moved, there is anger, A blessing to ... To this kind of widespread attention to the event is the so-called hot event. Although Liu Xiang's gam

First, installation1, the response content is processed by requests, and the Requests.get () method returns a Response objectPIP Install requests2. BeautifulSoup is not only flexible, efficient and very convenient for webpage parsing, but also supports many kinds of parsers.Pip Install Beautifulsoup43, Pymongo is the Python Operation MONGO ToolkitPip Install Pymongo4, installation MONGOSecond, analysis of Web pages source code1, determine the goal: first of all to know which page to crawl which

Original: http://www.csdn.net/article/2012-06-04/2806277Each Java programmer has a Java class ranking table of its own. This ranking table has no strict rules and no rules to follow, it depends entirely on the work of the Java project you are involved in. The following classes, without my introduction, are known to Java programmers because they are very popular in the Java world.1. java.lang.StringNo one can deny that the string class is undisputed ch

As a website optimizer, we face our own website every day to optimize our own website. Only in order to let our website have a higher weight, more traffic. To do this we have to make our site has a large number of visitors, then how to attract people to their own web site, we do site optimization How to make their own site more popular? At this time, each of us to do the site optimizer must face the issue of consideration, only to make the site more p

Label:"How to explain why the database is difficult to expand", the problem comes from Quora, the owner added that he has some basic knowledge of the database, but still do not understand why the expansion of the database is so difficult. Bole Online compiled excerpts of this question and answer post two popular replies.Paul King, Facebook data scientist (3.6K likes)There are four big challenges to scaling a database: Search, concurrency, consistency,

IHS expects that strong consumer demand for a wide range of wearable devices will increase sensor shipments in wearable devices, which is expected to grow seven times times in 2013-2019 years, with wearable sensors shipping at 67 million in 2013 and an estimated 85 million in 2014, Next year can grow by up to 1.75 One, 2019 shipments are estimated to be 466 million. And because the number of sensors in each wearable device is more than one, the type and function of the sensor can be varied, so t

A hot keyword search volume is very high, if a document can be a good combination of popular keywords, then this document brings traffic or other promotional effect is also very ideal, then how to use the popular keywords and SEO skills for document editing, combined with my years of Kunshan website optimization, SEO experience, There are several main techniques: 1. The title of the article needs to appear

As the world's first to realize the next edge to see the technology of the film download and on-demand software, the popularity quickly won the hearts of users, become more and more network insect online watch film and television preferred. Popular use of a very "fool", the user only in the main interface to choose their favorite video can be downloaded or on demand. Found in the use of popular many useful

In the process of doing SEO, see a lot of friends are more and more inclined to long tail keyword, more and more aware of the power of the long tail keyword, I am also so, but this does not mean to do the station need to discard hot keywords. Hot keyword as the main entrance of traffic, still has very important significance. Today, I would like to talk about my experience, the four kinds of advantages of the hot keyword. The main features of the popular