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What is MD5, what is SHA-1, and how to verify these hashes. There is a single ISO document MD5,SHA-1 interrogation is not the original question, here, to do a final explanation of the above problems. Let's take a look at some ba

program written in the C programming language are a text file, but after you compiled it, the compiled version is Bina Ry.A Perl program is a text file, and if you have it with PAR::P Acker It would be a binary file.A Microsoft Word file is a binary file as besides the actual text, it also contains various characters representing font s Ize and color.An Open Off

refactoring. Programmers, especially those who do maintenance work, clean up code is one of their daily work. This is a basic task and must be done. Martin Fowler and others contributed to formatting the best practices for refactoring code, and archiving and classifying common and proven reconstruction modes-reconstruction objectives and reconstruction steps. Refactoring

Anyone who learns Java knows that void means null and is a keyword in java. Initially, when I knew void, it was public static void main (String[]args) {}, I remember when I was in contact with void, I always had no idea what it was, so I asked the teacher, butThe teacher just said void is not a what, you just remember

What does DMA mean? What is DMA? The English spelling of DMA is "Direct MemoryAccess, which means direct memory access, is a data exchange mode that directly accesses data from the memory without going through the CPU. In PIO modeCPU control. In DMA mode, the CPU only needs

In layman's words, a blockchain is a general ledger that includes all the historical transactions, and each chunk contains several transactions. If the blockchain is a ledger, then chunks are every page of the ledger. The details of the transaction are recorded on a public ledger that can be seen by anyone on a network. A chunk is a collection of many transaction

Sender: echostate (AI), email area: AIQuestion: Which models do you like in Ml? What is the future direction of ML development?Mail station: Shui muCommunity(Sun JUN 17 01:27:00 2007), Station I have been idle for a while recently. If you are interested, come and have a chat.I am only a beginner, and there must be many errors. You are welcome to correct and discuss it.ML = machine learning in this article

What is a single page app?A single page app is an app that runs in a browser that doesn't reload the page during use. Like all applications, it is designed to help users complete tasks such as "writing a document" or "Managing a Web server." You can think of a single-page app as a rich client loaded from a Web server.W

Anyone who mentions static_cast, const_cast, reinterpret_cast, and dynamic_cast on the Internet will say that they have overcome the disadvantages of C-style type conversion and should use them.But what are the disadvantages of the C style? What are the advantages of C ++ cast?Before yesterday, I didn't even know what the cast was ). Yesterday, my colleagues ment

Http://blog.sina.com.cn/s/blog_6d2890600101cwih.htmlThree data are missing a word, namely: "Programming", "Architecture" and "development" (or "Software Engineering"). At the same time, it is not "facing" components but "based on" components. Object-oriented Programming (Object-oreinted programming) is a programming paradigm. Refers to the way in which class instance objects are used extensively when

what is a single page application. A single-page application is an application that runs in a browser that does not reload the page during use. Like all applications, it is designed to help users complete tasks such as "writing a document" or "Managing a Web server." You can think of a single page application as a ric

The first thing to know is what the so-called Java NIO is!IO is transmitted by character or byte, slower! And NiO is a block, it's equivalent to a buffer, a piece ofTransmission, faster！ Multiple threads are also addedControl, a NIO stream can transmit multiple blocks at the

, then we make multi-threaded map what? Computationally dense who uses python? There's an article in the Python wiki that lists in more detail why you can't do it gil:globalinterpreterlock If it is a new language, avoid the GIL is relatively easy to restrict the C extension of the interface only to go to the FFI, do not expose the internal implementation of

Many friends will have this question, the site has been done for some time. Also have to go with the new, but the site is not included. What are the reasons for not being included?First: With the site is K 1th the same, with the IP under the bad information, in the purchase of the first look at the space under the IP, such as included very poor do not buy. Workar

sapphire, with IPhone6 mobile phone home Key's Touch ID protects the glass material. Sapphire is considered to be the hardest transparent material besides diamonds, and it is very good to prevent and scratch. 　　Sports version Sport 　　The Movement version Sport uses the anodized aluminum shell, this material is bigge

strictly speaking, Linux is just a kernel in an operating system. What is the kernel? The kernel establishes a platform for communication between computer software and hardware, and the kernel provides system services such as file management, virtual memory, device I/O, etc.　　What