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declare this function and you can use it. 1, what is the difference between a static global variable and a normal global variable? What is the difference between a static local variable and a normal local variable? What is the difference between a static function and a normal function? A: The description of a global variable (an external variable) is precede

1, what is the Web?　　In short, the Web is a Web site that is based on the HTTP protocol and is accessed by a browser. The most commonly used meaning at the moment is the section on intenet that is related to HTML. In other words, the network resources currently accessed through non-browser on intenet are not called Web. Web page refers to a Web page within a Web site. We often say that the WWW (World Wide web) is the content of this concept.and the In

Note: This article comes from " what is Ooa in Java?" What is Ood? What is OOP? "In Java, what is OOA? What is Ood? What is OOP?OoaObject-oriented Analysis: An object-oriented analytical approachis to analyze the problem according

What is 5G network slicing? What kind of cutting with a knife ?, What is 5 GB If a 4G network is used as a knife, it can be ground-blown or broken. 5G networks are a Swiss Army knife, which is flexible, convenient, and versatile. 4G networks are mainly produced by smartphones. In the 5G era, we will face the next big thing-Iot. In the era of No-things and no-thi

Many people have said that - after years of age, write the program still have a future? I sometimes confused, but after the confusion, always to find their own direction, everyone needs to have a belief, no faith, live on boring, bored, feel no bentou. Talk less, I say, I usually work busy what? I prefer the technology, but the technology is not very strong, but I have plenty of time to learn more about the new technology, for example, I would nor

In a person's life, there will always be various choices. In the face of every intersection of life, what should we choose? In fact, what we want to talk about today is not at the crossroads of life, but it is also a question of how to choose. Because we want to get a bachelor's degree in computer science, we want to take a self-study exam. Based on various factors, we finally chose computer informati

not this I do not know, just the majority of the default page, are index.html)7) Http://mail.163.com/index.html: This is called URL, Uniform Resource Locator, global address, used to locate resources on the Internet. Perhaps by this time, you still do not understand, this domain name and site name What is the difference?OK, small to tell you!For example, you bought a university, the name of the University is: myname.com.Then, you want to build a la

What should I do, what should I do, what should I do, what should I do 。 When I first started learning PHP, I bought a book and now I'm done reading it. Basic syntax, database link reading, SQL statements, arrays, classes What's all this more clear? I also wrote some basic small programs such as data collection,

Many people say that after the age of 30, is there a future for writing programs? I am also confused sometimes, but after I am confused, I will always look for directions for myself. Everyone needs to have a belief and no belief. If I live, I am boring and don't think I have a head-on. I mean, what do I usually do at work? 01. I like technologies, but they are not very powerful, but I have time to study new technologies. For example, I usually study W

What information does the Singapore non-profit organization foundation need to register? Registration requirements ,?? Time, cost, and process?The Singapore non-profit organization foundation is registered with the Singapore accounting and Enterprise Development Board (ACRA) for public company limited by guarantee ). Non-profit organizations do not have registered funds and do not have to pay taxes. Therefore, there are many restrictions and strict re

In the C language, for definitions and declarations, perhaps we are very familiar with, but not necessarily really understand!Definition means: The definition is to create a (compiler) an object, to allocate a memory space for this object and name, that is, the name of the variable or object that we normally call, once this is a memory space match, then in the definition of this object or variable life cycle, The variable name created cannot be changed, and the location of the memory space will

Encryption-Re-encodes the information in some way. Decryption-Restores the encoded information in some way.What is symmetric encryption and what is asymmetric encryption? Give me a chestnut:A send a message to B, in order to secure the transmission of information to be encrypted. There are two ways in which they1. Both A and B know how to encrypt information and how to decrypt it.A, b all know the password case, a to a piece of information encryption

More and more friends asked in QQ or QQ groups, "What Do website art engineers need?" and "How do they learn webpage art "...... Or you may be new to this course. I don't want to answer the same question again. I wrote this article to talk about what a webpage artist is and what a webpage artist is. First, let's briefly talk about the types of work required for

1 in-progress validation of the document 2 determines the rendering mode of the browserStandard mode is strict,Weird patterns and promiscuous patterns are not allowed, old, wrongBusiness hooks with progressive enhancements elegant downgradeIncremental increase is mainly for the bottom version of the browser for page construction, to ensure basic execution. Interactive and improved for high-version browsers, additional featuresGracefully downgrade, build features from the start, and then compatib

Uncover the real speed of ADSL Users who often use ADSL, do you know the real speed of ADSL? With this question, we will expand the problem step by step.Many users report that,The download speed of ADSL does not reach the nominal 512 K. After the computer accesses the network through ADSL, a download speed indicator is displayed during download. The download speed shown above is generally 50 Kbyte/s.Left and right! This is a misunderstanding caused by unclear conversion relationships.1.

1.Q: What is the system clock. What is a clock system. A: Usually referred to as the system clock refers to the clock system, which is the oscillator (signal source), timing wake-up, frequency divider and other components of the circuit. The commonly used signal sources are crystal oscillators and RC oscillators. 2.Q: What is the function of the clock system?

Tags: type brackets unique order Chinese word breaker query files multiple columnsImprove query speed, facilitate sorting and grouping. (The process of sorting and grouping, if not indexed, results in temporary tables and filesort)Based on business logic, analyze the frequency and order of column queries, and build indexes and composite indexes.Primary key index (primary key),----> No index name is required because there is only one primary key indexUnique index (single key)---->unique Key Email

. Second, by abandoning individual things in the details of the differences, extracting their common characteristics and get a group of things abstract concept.Abstraction is the most widely used principle in object-oriented methods. Abstract principles include two aspects of process abstraction and data abstraction.Process abstraction means that any sequence of operations that completes a deterministic function can be viewed by the user as a single entity, although it may actually be done by a

Everything is different from the first to the fourth year. From the first to the fourth day, there is no such thing as a basket. The food is not so sweet, and the sleep is not so comfortable. How many people have troubles with work and nonsense.Http://bbs.sei.ynu.edu.cn/viewthread.php? Tid = 27480 extra = Page % 3d8 My reply:LZ: I have to tell youThe more I reach my senior year, the easier I am. The more blue my days are, the happier I am .......To LZ, you can only say, "now, everything is late

Reprinted from: http://www.52rd.com/Blog/Detail_RD.Blog_SHRDFresh_52276.html Typhoon days, heavy rain, sleepy at home, left and right nothing .. Continuing the previous article titled "Qualcomm QRD vs. mediainfo TK, the war that just started", I found many comments about the Turn-key topic, so I saved another article. Now the world is claiming to provide the Turn-key solution, and it seems that there is no way to mix it in the industry without the Turn-key. Chatting with friends also has a fre