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Tags: style blog http color os using IO file dataIn all applications, the database can be the most complex.MySQL's manual has more than 3,000 pages, and PostgreSQL's manual has more than 2000 pages, and Oracle's manuals are even thicker than they add.But it's not hard to write a simple database of your own. Reddit There is a post, only hundreds of words, the principle is clear. Here's what I've organized based on this post.Data is saved in text form.T

Source: RuanyifengIn all applications, the database can be the most complex.MySQL's manual has more than 3,000 pages, and PostgreSQL's manual has more than 2000 pages, and Oracle's manuals are even thicker than they add.But it's not hard to write a simple database of your own. Reddit There is a post, only hundreds of words, the principle is clear. Here's what I've organized based on this post.Data is saved in text form.The first step is to write the d

value types when passing variables in your program? Do you use pointers and destructors to control the life cycle of an object? Do you clean the memory yourself or use the relevant garbage collector? Do you calculate and track reference types and subclasses?These are the problems that we don't usually care about. But sometimes, they are some of the concepts you have to deal with, so it's important to understand the internal mechanisms. Although now you will feel that these concepts are complex,

C #, Source: http://www.cnblogs.com/wintersun/ MemcachedIt is an open-source high-performance distributed cache component and has been widely used in various Internet fields. client Development kits with multiple languages, including Perl/PHP/JAVA/C/Python/Ruby/C #/MySQL. this site is already using YouTube, Reddit, Zynga, Facebook, Orange. viewThe following figure compares the image. It is also a platform for expansion. Today we are looking at the

"]) () [_ [_/_] + __[_ + ~ $] + $ _ [_] + $] (_/_) Next let's look at [_ [_/_] + _ [_ + ~ $] + $ _ [_] + $] (_/_) Is something. We have learned that: _ = "False" _ = 3 ~ $=-1 $ _ = "True" $ = "Rt" Therefore, [_ [_/_] + _ [_ + ~ $] + $ _ [_] + $] (_/_) => ["False" [1] + "false" [3-1] + "true" [3] + "rt"] (3/3) => ["a" + "l" + "e" + "rt"] (1) => ["alert"] (1) Therefore, the original expression can be replaced: ($ = [[] ["Sort"]) () ["alert"] (1) How is this code executed? Let's analyze it step by

application Server + War and the spring app + 126 jar is obvious.Vendor lockI think it is important to choose a platform that does not depend on a particular vendor, but it is not appropriate to choose a platform purely on the ground that it can be migrated to another implementation. Can you imagine how many chances you have to migrate from one server to another? Choosing a platform without locking to a vendor is a "icing on the cake" behavior, but it should never be a key factor.We don't need

volume speed. General newtonsoft.json--operates JSON serialization and deserialization standards in. NET.topshelf--is a simple service hosting framework that is used. NET to build Windows services.rabbitmq--when you need a stable and reliable message queue for your application suite, RabbitMQ is your best choice.underscore.js--My favorite JavaScript framework for object manipulation and traversal of collections/transformations.moment.js--a lightweight and robust JS date processing

but wonder. Then show it to your friends. With a game mentality, you will learn faster, remember longer, and have more fun. 4. Magic of time to write code The most common problem in learning JavaScript is that you cannot find time to write code. However, at the same time, there is a lot of time to browse various websites, such as Facebook, YouTube, Wikipedia and Reddit. I tried Facebook several times. At first I wanted to open Facebook for a short ti

leaked source code copies will also pop up on GitHub every few hours.Security researchers revealed that the code was actually leaked four months ago. At that time, the user shared a link on Reddit, which was automatically deleted when the link was released by the user, therefore, it is ignored. However, some security experts have different opinions. They do not think that this leak will have much impact, because the iBoot source code is often revers

volume speed. General newtonsoft.json--operates JSON serialization and deserialization standards in. NET.topshelf--is a simple service hosting framework that is used. NET to build Windows services.rabbitmq--when you need a stable and reliable message queue for your application suite, RabbitMQ is your best choice.underscore.js--My favorite JavaScript framework for object manipulation and traversal of collections/transformations.moment.js--a lightweight and robust JS date processing

letter or two or three numbers. (Note 1: The password list mentioned here contains "stupid passwords" such as 123456, password, and qwerty 」) On the contrary, why not increase the minimum length required by the password, and disable a 3-bit or longer numeric sequence/[0-9] {3 ,}/? You can take a small step forward after that. The same character cannot be repeated more than twice in a line (adjacent /(.) 1 {2,}/, and there is not much trouble. This eliminates most of the troubles and does not re

leaked Apple ID email addresses. More than half of users use QQ mail, which is the top 10 account email address Domain Names (6 of which are mainly used by Chinese users) •@qq.com•@163.com•@icloud.com•@gmail.com•@126.com•@hotmail.com•@sina.com•@vip.qq.com•@me.com•@139.com However, we also find some email address domain names that belong to other countries or regions, including •tw: Taiwan•fr: France•ru: Russia•jp: Japan•uk: United Kingdom•ca: Canada•de: Germany•au: Australia•us: United States•c

Many users have encountered blue screen of Death (BSOD) in the use of Microsoft Windows 10 system, although the Internet is always complaining, but there are many users using Windows 10 has never met the BSOD blue screen interface, the correct configuration makes them run very smoothly. Now there's an opportunity on Reddit for these users to experience a blue screen in peacetime, yes, a 4K resolution of Windows BSOD blue screen wallpaper. 650)

to note is that KB4015217 is a cumulative update for the Windows 10 anniversary update that includes not only bug fixes and background performance tuning, but also security patches and so on. Similar to the previous problem, there was a problem installing the KB4015217 update, but it is not clear how many users are affected.In this upgrade, the most complaining is that during the installation process will be stuck in a progress, although the surface of the update is in the aborted state, but th

nature of one thing and why there are existing problems and solutions, including the emergence of the react framework.Have the opportunity really should see react and JSX, CSS a few conf, really will broaden a lot of ideas, including today in Stackexchange see puzzle is also very interesting, compared to the palm of meaningless comments, Reddit on S6 on the evaluation to be more exciting. These days on the code engineering Thinking and read the "as P

directly from your computer. This is very unusual for password search.Passwords for similar services can be grouped so that you can find them in a folder. You can also label your passwords and store them in different categories.ThemeIf you like a bright theme like white or High contrast, you can change it in Settings > General > Themes. (Keeweb) There are four themes to choose from, two of which are dark and the other two are bright colors.don't like Linux Password Manager? Then there are two o

A group of "hackers" hijacked MtGox CEO Mark Gao five days ago. reddit users and security researchers found that this executable file is actually a bitcoin wallet Trojan, searches the Bitcoin-Qt wallet directory to find the file wallet. dat and bitcoin. conf, upload them to the server 82.118.242.145. This server is closed after the user reports it to the customer service provider. If you have downloaded this file, you 'd better delete it. Bitcoin det

On Reddit these two days The most popular postIt's not about any technical issues, but about how cups (Common Unix Printing System) in GNOME prints the README file of the System Manager. It shows us how interesting and intriguing it is to incorporate the humanistic spirit into technology ...... This readme file starts like this: Once upon a time there was a printer who lived in the woods. He was a lonely printer, because nobody knew how to configure