Now a lot of URL connections are used short address do not know what meaning, online to find an example read the code for referenceClass Short_url {#字符表public static $charset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ";public static function short ($url) {$key = "Alexis";$urlhash = MD5 ($key. $url);$len = strlen ($urlhash);#将加密后的串分成4段, 4 bytes per segment, calculated for each segment,
First in the New Year in Shijiazhuang SEO blessing A5 all staff and the majority of small webmaster Happy New Year! Two days ago to read a piece on the impact of the short link to SEO article: Short URL on the impact of SEO and application, the article explains the short link to the original link did 301 redirect to SEO is no impact , as well as the Google engine
Persistent connection and short connection
A persistent connection means that multiple data packets can be sent continuously over a TCP connection. If no data packet is sent during TCP connection persistence, both parties need to send a detection packet to maintain this connection, generally, you need to maintain it online.A short connection is a TCP connection established when both parties have data intera
Building an indicator from short volume data price of a asset or an ETF are of course the best indicator there are, but UNF Ortunately there is only if much information contained in it. Some people seem to think so the more indicators (RSI, MACD, moving average crossover etc), the better, and if all of t Hem is based at the same underlying price series, they would all contain a subset of the same limited information containe D in the price.We need mor
This article mainly introduces how to use Python to generate url short links. Short links are very common in social networking websites such as Weibo, if you need a url, you can refer to almost all the meager services to shorten the url. The principle is to generate a string for a url according to a certain algorithm, then a new url address is added to the end of a shor
First of all, here is a brief reference to the HTTP protocol, the HTTP protocol is located at the application level to the object of the protocol, the WWW is now using the http/1.1 version, about http/1.0 is also today to say the content.HTTP1.1 bit HTTP1.0, the biggest difference is the increased support for persistent connections.In http/1.0, a short connection is used by default . That is, the browser and server each HTTP operation, will establish
What about the computer board short circuit?
What is the reason for the motherboard short circuit, how to solve? We often take down the motherboard to clean, and so on when you forget the switch and reset button that row of pins is inserted, with the copper key in the row of pins swept a bit, saw sparks Flash, the motherboard has no movement.
Troubleshooting for motherboard
WordPress starting from the 2.5 version, added a shortcode (short code) API, similar to the BBS on the BBCode, Shortcode can also be very convenient for the article or page to add functionality, and shortcode than BBCode more Plus flexibility and strength. Below Kayo for you to introduce Shortcode.
I. Shortcode INTRODUCTIONShortcode can let developers create content by creating content in the form of functions, which may seem a bit blurry, but in fac
that's exactly what mark is going to learn.
Original from:
http://blog.sina.com.cn/s/blog_6163bdeb0102dwfw.html
spectrogram function for short-time Fourier analysis(2011-11-17 15:52:23) reprinted
Tags: short-time Fourier transform window function discrete fourier transform sampling frequency wavelet analysis
Category: Subject knowledge
Previously thought that the time-frequency
analysis of secondary short-circuit and sub-niche tree-forming algorithm
This article is not original, tribute to the original, address: https://blog.csdn.net/u010016150/article/details/12992571 [secondary short path]
The second shortest path can be regarded as a special case of K-short path problem, and it is more complicated to find the yen algorithm for K-
With the continuous development of communication and information technology, the application of short-range wireless communication technology is accelerating, and it is becoming more and more mature. In general, as long as the communication between the two sides through radio waves transmission information and transmission distance limited to a shorter range (dozens of meters), can be called short-range wir
In the program, there are generally three ways to send short messages:1. Use a program to send short messages on the Internet, such as text message services of various websites. In this way, the program sends the information to the gateway server of the carrier, and then sends the information to the mobile phone through the network of the carrier.2. Connect to the mobile phone through the data cable in the
Original article: http://blog.csdn.net/bhw98/archive/2003/03/27/19666.aspx
We need to understand the SMS specification developed by ESTI. The rules related to short message sending and receiving discussed mainly include GSM 03.38, GSM 03.40, and GSM 07.05. The first two focuses on the technical implementation of SMS (including the encoding method), the latter sets out the DTE-DCE interface standard of SMS (AT command set ).There are three methods to s
650) this.width=650; "src=" http://imga.chrome001.com/article/201603/28/151432x67925olmx68xlx2.png "border=" 0 " Class= "Shadow" alt= "Animoto video maker (make short video)" style= "border:0px;vertical-align:middle;margin-bottom:0px;"/>Plugin Introduction:When we use Web browsing or using social software, we often see some other people's video clips, you will find that some of the film is actually made with a piece of paper pictures, today to recomme
One trick per day: 15 minutes before the close short-term operation cheatsCollection2015-03-03 11:00:06Buying at the close of 15 minutes the essence of short-term operation is to avoid the risk of long-held holdings, to obtain short-run profits. Short-term customers are sacrificed to long-range customers can get a stab
In certain dc/dc-converter applications, on-chip, cycle-by-cycle current limit could be insufficient protection to prevent a Failure during a short circuit. A nonsynchronous boost converter provides a direct path from the input to the short circuit through the inductor and the C Atch diode. Regardless of Current-limit Protection in the IC, when a short circuit ex
Building maintainable Software-java Write short Units of CodeAny fool can write code that a computer can understand. Good programmers WriteCode that humans can understand.-martin Fowlerguideline:? Limit The length of code units to lines of code.? Do the writing units that is longer than lines ofCode in the first place, or by splitting long units into multipleSmaller units until each unit have at the most lines of code.? This improves maintainability b
First, what is a short linkMeaning: The ordinary URL is converted into a relatively short URL. For example: Http://t.cn/RlB2PdD, such as Weibo, which is used in the application of the word limit.Advantages: Short, less characters, beautiful, easy to publish, spread.Baidu Short URL: http://dwz.cn/Google
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