times top books

For a programmer, he can only learn accumulated and read some excellent books at work, but cannot learn much really needed in school, we can work better only by combining practice and theory. Today, with the development and change of technology, every developer should take the initiative to read books to learn programming skills and change programming methods in order to cope with various complex projects a

I have recently read many enlightening technical and non-technical blogs and have a lot of feelings. However, I forgot a lot of information. So I thought about the reading efficiency and effect. For more profound and thought-provokingArticleYou cannot ignore your understanding of thinking and reading. You cannot add your favorites to your favorites.If you take a look, you will lose this kind of curiosity and system. In the future, I will see it again. I will not read it again from start to e

Ask for PHP-related programming books and ask for PHP-related programming books. every program can be around 100 or 200 lines. thank you very much for your understanding !!! ------ Solution -------------------- php nbsp; there are no good books, it is better to go through the manual several times. ------ Solution ----

to 3 times times faster!In fact, the site uses gzip compression, there is a benefit, is to let you less than a traffic exceeding the worry. Since Gzip is turned on, the data that is exported to the user's browser is compressed, which reduces the amount of data transmitted over the network, and that is why the page is being opened.Related KnowledgeHow to enable the Gzip compression feature for IISFirst, if

installation, follow the instructions to generate the OFF-CPU flame diagram as follows: Perf_off_cpu_orig.png I can't fully read this picture yet, but it's already clear that the registry file (Filebeat is used to record file capture lists and offset data) is a percentage of the write operations. As a result, try to set Filebeat's Spool_size (registry file updated once for each of these logs) to 10240, the default value of 5 times

the opposite side can receive it. That is, if the connection is established in the two-time handshake, it is likely that the connection is one-way from the client to the server, that is, the client has been sending messages and the server has been receiving messages.In addition, the two-time handshake establishes the connection, the server side if sends the message to the client, cannot guarantee to send normally, also cannot guarantee the client to receive normally. So two handshakes can cause

Fix thinkphp off debug mode times wrong problem summary, thinkphp times Case one: Recently developed a project with thinkphp, the local development test completed upload to the server, the first time to open the normal, and then refresh the page when the "page debugging error, cannot find the page, please retry" error. I am depressed, obviously local set define (' App_debug ', false) run no problem, how to

A question I asked 100 times, 100 times.----------, if reproduced please ensure the completeness of this document, and indicate the source.Welcome to C + + Builder research,http://www.ccrun.com/doc/go.asp?id=564CB of the complete compilation problem, is probably the novice BCB friends ask the most questions.The symptom is compiles the good EXE program to copy to the machine which does not have the BCB insta

Net4.6 Task Async function is 5 times times slower than a synchronous function The pit experience https://www.cnblogs.com/shuxiaolong/p/DotNet_Task_BUG.htmlAsynchronous Task Brief IntroductionThis headline is a bit of a grandstanding, everyone don't mind (do not rule out personal technical ability)--Next: I will use a small demo to explain the idea of this article.. Net 4.0 has a Task function--Asynchronous

For SEO optimization, the user almost always results-oriented, of course, this is human nature, you pay the things, no actual effect who would like to? Content is king ", then the result granted its King sovereignty, here and you share a case study, a simple change to SEO brought three times times sales conversion. March 2010 Link Building Map 　　 From the information graph above, we can find t

']} and lng$squares[' Right-bottom '] [' LNG ']} ";After establishing a federated index on LAT and LNG, using this query, the average query consumption per record is 0.8 milliseconds, compared to the previous 1700ms, it is really a great difference. Efficiency really is 2,125 times times the previous ~ ~Summary: This should not be the best way to be efficient, but the efficiency is actually significantly h

function that combines: Example 123456789101112131415161718192021222324252627 define(EARTH_RADIUS, 6371);//地球半径，平均半径为6371km/***计算某个经纬度的周围某段距离的正方形的四个点**@param lng float 经度*@param lat float 纬度*@param distance float 该点所在圆的半径，该圆与此正方形内切，默认值为0.5千米*@return array 正方形的四个点的经纬度坐标*/function returnSquarePoint($lng, $lat,$distance = 0.5){$dlng = 2 * asin(sin($distance / (2 * EARTH_RADIUS)) / cos(deg2rad($lat)));$dlng = rad2deg($dlng);$dlat = $distance/EARTH_RADIUS;$dlat = rad2deg($d

speed is 100 times times more, Io from 100% to less than 1%Test on SSD machine, optimize before 7s, optimize the first 0.3s, second 0.1s, optimized execution speed is 10 times times more, Io from 100% to less than 1%As you can see, pre-optimization disk IO is a performance bottleneck, the SSD is significantly faster t

Thread synchronization code block: two customers save money to one bank, and each user saves one hundred at a time for 30 times. Simulate the Bank Deposit function, and the number of cash in the bank at any time ., Save 30 times Package com. swift; public class Bank_Customer_Test {public static void main (String [] args) {/** two customers save money to one bank, and each user saves one hundred at a time f

Effectively improve the Win7 computer speed 50 times timesHow many people are using Windows7 at present? According to statistics Microsoft has successfully sold 350 million copies of the original operating system, coupled with the market on the Win7 flagship version of the Pirate Win7 system download, Win7 activation may have more than 1 billion ...My most recent article is often linked to modifying registry options, and I wonder if you found it?Today

The previous two times that was XOR or arithmetic processing. This time I thought it was similar. But I didn't think of it.Gaofu think out of the algorithm, to Bitset, and then add up the same words either 0+0+0 or 1+1+1, the last remaining can be calculated by%3 0 or 1. Thought is like this,is actually a bit operation. Just not XOR or such an operation O (1) such, but because the input is an int array, -2^31~2^31-1 so with 32bit can be expressed.Prev

Since a number disappears, there must be a number that appears once and the other numbers appear even several times. It is not necessary to use the search to do, using the two characteristics of the XOR operation--1. Self-XOR or result 02. Different or satisfy the Exchange law.So we're going to have these numbers all different or again, and the result must be that number that only appears. The sample code is as follows:Int[] Arra = {11,12,3,12,11,12,1

How can I prevent php from automatically changing amp; times to #215;? a amp; timestamp value needs to be sent to the API of the other party. in the result, PHP converts amp; timestamp directly to #215; tamp is a headache. haha ------ solution -------------------- impossible! Post your sample code ------ solution -------------------- how can I prevent php from automatically changing times to ×? You n

N times of laughter n times it is said that the story can make people younger than 10 years old Please stick to the end. It's so funny. You will be 10 years younger !!!!!!!!!!!! My mom said that my IQ is only 76. I don't know how high my IQ is. I only know that I am a very lethal person. Many people are hurt by me. Some of them lose hope for life, and some even commit suicide. So I have always suspected tha

I didn't notice these two functions before, and someone in the group asked yesterday. Discover the following things.Header ("content-type:text/html;charset=utf-8"= Array ('a '=1,'b'== 2= = == json_decode ($arr _1); Var_dump ($obj); Echo $obj->a;Results:String ' {"A": 1, "B": 2} ' (length=13) string ' "{\" a\ ": 1,\" B\ ": 2}" ' (length=19) string ' "{\" a\ ": 1,\" B\ ": 2}" ' (length=19) String ' {' A ': 1, ' B ': 2} ' (length=13) object (StdClass) [1] public ' a ' = = int 1 public ' b ' = =