understanding macd

Understanding of recursive functions and understanding of recursive functions Preface: Many complex algorithms include recursive algorithms, especially for tree-like Data Structure traversal. Therefore, it is necessary to have a correct and in-depth understanding of recursive algorithms. I. Basic concepts of recursive functionsRecursive Function Mechanism

Deep understanding of the PHP kernel (1) and deep understanding of the php kernel. In-depth understanding of the PHP kernel (1), in-depth understanding of the php kernel as a simple and powerful language, PHP can provide a lot of language features applicable to the Web. Starting from practice, I deeply understand the p

In-depth understanding of the OB function buffering mechanism in PHP, PHPOB mechanism in-depth understanding The following is a description of the OB function buffer mechanism in PHP in the form of text and code analysis to show you the following: For a newly-started PHP programmer, the PHP buffer is almost transparent. In their mind, an echo print_r function , the data will be ' swish ' a sound to fly to

In-depth understanding of PHP printf () Output formatted strings, in-depth understanding of printf The PHP printf () function is used to output formatted strings, and this article introduces the use of the PHP printf () function and the basic usage examples of the code farm, which is of interest to the farmer. Definition and usage The printf () function outputs a formatted string. The Arg1, arg2, arg++ par

In-depth understanding of the count function of the PHP array, in-depth understanding of count Count () The PHP count () function calculates the number of cells in an array or the number of properties in an object, returns the number of cells in an array, or the number of properties in an object. Grammar: int count (mixed var [, int mode]) if VAR is a non-array normal variable, returns 1 for non-existent,

by the programmer management Nstread:oc language, object-oriented, easy-to-use, direct manipulation of thread objects, thread lifecycles managed by programmers GCD: (Common) alternative threading technology such as Nstread, take full advantage of device multicore, thread life cycle automatic management, C language Nsoperation: (Common) The bottom is gcd, more than gcd more simple and practical functions, using more object-oriented, automatic management of thread life cycle The

Let's talk about impress. js's preliminary understanding and impress. js's understanding 1. Understanding of impress. js Impress. js uses CSS3 and JavaScript to implement a presentation layer framework (Demo tool) for developers ). Currently, common developers can use impress. js to develop demo tools with similar effects, but the performance is better than FLASH

I have explained in detail the implementation principle of the prototype chain in the article understanding the principle of Javascript_05 _ prototype inheritance. We all know that the prototype chain is created based on objects (no objects, which prototype is used ), now let's parse the object creation process. Simple code Let's take a look at a simple piece of code: The Code is as follows: Function HumanCloning (){}HumanCloning. prototype = {Name

Deep understanding of Java Virtual Machine (5) --- bytecode execution engine, deep understanding of bytecode What is bytecode? Baidu's explanation is as follows: Byte-code is a binary file consisting of an execution program and a sequence of op code/data pairs. Bytecode is an intermediate code that is more abstract than a machine code. It is often seen as a binary file containing an execution program, more

A deep understanding of the multi-thread mechanism of IIS and a deep understanding of the multi-thread mechanism of iis First, let's take a look at the two numbers in IIS: Maximum number of concurrent connections and queue length. Let's talk about where the two numbers are. Maximum number of concurrent connections: select a website in IIS, right-click the website name, right-click the website name, and cho

This week has just opened the software architecture of this course, is not familiar with this course, today through the reading structure of this series of articles, the article gradually discussed what is the architecture, how to do a good architecture, how the software architecture, how to write procedures and other issues, to understand the knowledge of architecture.In layman's terms, a whole is divided into different parts, which are performed by different roles, and by establishing mechanis

Understanding ES6 's ModulesSource: Understanding ES6 Modules.Basic (Basic)in the In ES6, each module is defined in its own file . variables defined in the module or functions are not visible externally.unless you show that the with Export to export them This means that you can write code in your module and then export only those parts that need to be accessible by other parts.The ES6 module is defined usi

Comprehensive understanding of global variables in PHP and global variables Several super global variables (superglobals) are predefined in PHP, which means they are available in all scopes of a script. You don't need to specify it, you can use it in functions and classes. PHP Super Global Variables list: • $GLOBALS$_server$_request$_post$_get$_files$_env$_cookie$_session In this section we will cover several common super global variables, the rest o

I found a very old article, but I have a good understanding of classloader. Original Author: Greg Travis (Mito@panix.com) Start: This tutorial provides an overview of the Java classloader and takes you throughConstruction of an example classloader that automatically compiles your codeBefore loading it. You'll learn exactly what a classloader does, and what you needDo to create your own. This tutorial provides an overview of Java classloader and bring

0909 operating system tutorial understanding and understanding, linux operating system tutorial Questions: 1. What does the operating system do? 2. Why do I learn the operating system? 3. How to learn the operating system? 4. Understand the operating system development history. Answer: 1st.The operating system is the layer closest to the hardware and can directl

Deep understanding of C pointer Reading Notes, deep understanding of pointers Last weekend, I saw this very thin book in the library-deep understanding of the C pointer" The content written in this book is suitable for beginners, but the content is not very difficult. I also read and take notes for each chapter. The notes are posted in the form of code. Chapter1

A preliminary understanding of EF, a preliminary understanding of English EF: EntityFrameWork is a framework (the so-called framework can be understood as directly using code already written by others), and this framework is an ORM framework (Object/Relation Mapping ). First, let's talk about how I understand EF at this stage. EF uses the object-oriented idea to operate databases. It can generate an object

In-depth understanding of the OpCode principles of PHP, in-depth understanding of opcode This article describes the principles of OpCode in PHP. We will share this with you for your reference. The details are as follows: OpCode is an intermediate language after PHP script compilation, like ByteCode of Java or MSL of. NET. This article is mainly based on Understanding