vim concepts

Objective-C basic notes (1) Basic concepts and first procedures, concepts first featuresI. Basic Concepts Objective-C (OC) is the core language for iOS development. Apple maintains and works with C and C ++ during the development process. OC is mainly responsible for the UI interface, C language and C ++ can be used for graphic processing. C language is a process

Four core concepts of CSS and four core concepts of CSSCascading Style Sheet (CSS) is a set of format setting rules used for webpage Style design. By setting the page format with CSS Styles, you can separate the content and representation of the page. The page content is stored in the HTML document, while the CSS rules used to define the representation are stored in another file or a part of the HTML docume

Basic concepts and architecture of Docker, basic concepts and architecture of docker Introduction to Docker container Technology Docker containers depend on two important features of the Linux kernel. Namespaces namespace Control group Understanding these two features can help us better understand the resource allocation and management of Docker containers. 1. Namespaces namespace Many programming languages

Basic concepts of JavaScript and basic concepts of javascript I. Case Sensitive All variables, function names, and operators in ECMAScript are case sensitive. For example, the variables test and Test indicate two different variables respectively, Ii. identifier The identifier refers to the name of a variable, function, attribute, or function parameter. One or more characters of the identifier in combin

Object-oriented basics: basic concepts and basic concepts What Is Object-Oriented? It is a programming method, a way of thinking, not a programming language, used to compare object-oriented with the real world. The core objective is to reduce the amount of code duplication. How to Learn object-oriented? 1. Grasp the syntax of an object-oriented language, such as java 2. Understand the object-oriented w

Basic concepts of Android databases (I) and basic concepts of android 1. Introduction to the Android Database Android uses the SQLite database and Content Provider in combination to provide the persistent function of structured data. SQLite databases can store application data in a structured and easy-to-manage way. Android provides a complete library file for SQLite relational databases. Each application c

Basic concepts and Management of LVM and basic concepts Management of lvm I. Problems with traditional disk management When the partition size is insufficient, it cannot be expanded. You can only add a disk or create a new partition to expand the space. However, the newly added hard disk exists as an independent file system, the original file system is not extended, and upper-layer applications can only acc

Basic concepts of UML [dependency, association, generalization, implementation] and basic concepts of umlI. concept: Introduction to the basic concepts of UML: UML: UML (Unified Modeling Language) provides a Unified, standard, and visual Modeling Language for Object-Oriented software design. It is applicable to the whole process of describing case-driven, archite

Vim color scheme settings (change vim color scheme) (1) after vim is installed, run the command whereisvim and you will see the returned result: vim: /usr/bin/vim/usr/share/man/man1/vim.1.gz note: /usr/share/

1, Vim is the ancient artifact of Linux programmer programmingVim is the most famous text/code Editor on the Linux system, and it is also an enhanced version of the VI editor of the early years, known as the best classic ancient artifact in the text/code Editor. The reason why it is such a reputation, I think mainly for the following reasons: 1. It is ancient and mysterious, the learning curve is steep, difficult to control, but once learned to benefi

Summary of WebService Learning Concepts and summary of webservice concepts Concept Summary: WebSerevice is a remote call technology across programming languages and operating systems.Transmission Protocol:HTTPTechnical composition:XML + XSD, SOAP, WSDLXMLEncapsulate the data format to solve the problem of data representationXSDDefine a set of data type standardsSOAPProtocol = HTTP protocol + XML data forma

that the minor is under 18 years of age. In Chinese moral concepts, the 13-year-old man began to marry his wife and have children. Li Tianyi was a minor in law, but in people's hearts, he was an adult, we should bear the corresponding responsibilities. If the news reports "10-year-old Li Tianyi, rape a woman", everyone will think, isn't it better? Therefore, this shows the conflict between Chinese traditional cultural

OC-Concepts and usage of protocols, oc-concepts of protocols In the previous article, we introduced the class extension in OC: Extend. The protocol in OC is equivalent to the interface (abstract class) in Java, but the name in OC is more vivid, because when we are learning interfaces in Java, it can be seen that the interface is equivalent to a contract (Protocol), marking its implementation class. Of cour

JavaIO stream (1): basic concepts and basic concepts of javaio stream I. input and output streams Input stream: when the program is running, you may need to read the required data from external storage media or other programs and use the input stream. Output stream: After a program processes data, it may write the processing result to a permanent storage media or send it to another program, using the output

Python crawler (1): basic concepts and basic concepts of python CrawlerWeb crawlers are defined as Web Crawlers (Web Spider, also known as Web Spider, Web robot, and Web page chaser). Web crawlers follow certain rules, programs or scripts that automatically capture World Wide Web information. In addition, some frequently used names include ant, automatic indexing, simulation programs, and worms. If you thin

Basic concepts of Java and basic concepts of JavaJDK (Java Development Kit) Java Developer Kit contains tools needed to develop the Java programs, andJRETo run the programs. The tools includecompiler (javac.exe), Java application launcher (java.exe), Appletviewer, etc... Compiler converts java code into byte code. Java application launcher opensJRE, Loads the class, and invokes its main method. You needJDK,

Basic concepts of JavaScript (2) --- variables and basic concepts of javascriptVariable 1. variable definition Use var in Javascript to define variables. The specific format is as follows: Var name = 1; If only the variables are declared and the variables are not initialized, the value of the variable is undefined. (For details about undefined, see section 3 of the variable) Of course, you can also define m

MEF basic concepts learning notes, mef concepts learning notes MEF is a framework class library under the Microsoft. net Framework. It can make your program load expansion with low coupling. It is often used when developing plug-ins or developing functions that require flexible extension. For example, the calculator example provided by Microsoft. When you develop a calculator, the initial function only prov

Introduction to basic concepts of NAND FLash and basic concepts of nandflash I. Pin Introduction Pin name Pin Function CLE Command lock function ALE Address lock function /CE Chip enabling /RE Read enabling /WE Write enable /WP Write Protection R/B Ready/busy output signal Vcc Power Suppl

level, or the full certification level, then vote in favor.If there is a security object attribute that requires anonymous authentication and is currently in an anonymous authentication level, or if you remember my authentication level, or the full certification level, then vote in favor.If the polling device supports at least one securable object property, and the current security level does not meet the requirements of these securable object properties, a veto is cast.If the securable object