constant constant

1. Overview1. 必须使用 或是这两种标签2. PHP代码中必须使用UTF-8 without BOM 编码方式3. 每个文件建议只用来声明(类class,函数function,常量constant等)或者只用来做一些辅助操作(输出信息，修改配置等)，但一个文件不建议同时做这两件事4. 命名空间Namespace和类class必须遵循"autoloading"PSR标准【PSR-0,PSR-4】5. 类名（class）必须使用大驼峰命名法，如UserInfoController6.

Comment StatementSingle# Single Line/*Multi-line comments*//*** Documentation Comments**/Constant definitionCustom constant constant names are case-sensitiveThe system's magic constants are case-insensitive __dir__ __dir__Variable definitionVariable

Object-oriented is not a technology, but a kind of thinking, is a problem-solving the most basic way of thinking! How to understand usage? OOP: Object-Oriented Programming(Direct code description)1. Example of an object-oriented basic concept

The PHP syntax is simple, the application is very good, and the class library is powerful, it can write a very powerful server side. It would be a good thing for someone like me who only needs a small function server. Simply speaking of learning PHP,

The new object model The object processing part of PHP has been completely rewritten, with better performance and more functionality. In previous versions of PHP, objects were treated as primitive simple types (such as Integer and string), the

* This article is a supplement and revision of the Classes and Objects in PHP5 series, and introduces the general framework of the PHP5 object system, but some features are not specifically introduced. It is strongly recommended that you read this

1.Java built-in support for strings;The so-called built-in support, that is, do not have to implement string types like C through a char pointer, and Java string encoding conforms to the Unicode encoding standard, which means that the C-language

constant PointerRefers to--a pointer to a constant, as the name suggests, is the pointer to a constant, that is, it can not point to the variable, it points to the content can not be changed, not through the pointer to modify the content it points

1.Specifies the default encoding set for Web applications, which is equivalent to calling the HttpServletRequest setcharacterencoding method. 2.This property sets whether the system reloads the resource file every time the HTTP request arrives. The

1.asm (assembly), as follows: ASM (instruction String); Allows you to embed assembly code in C + + programs.2. Auto (automatic, automatic) is a storage type identifier that indicates that the variable "automatic" has a local scope, and a

This note is summarized from a code view. In general, when programming with C, we are used to defining a numeric constant in our code using the macro definition in C: #define MY_CONST 7 When developing a project in C + +, there is

1. Custom Constants * Must be defined with function define ()* The value can not be changed after the definition is finished* Use the constant name directly, not as a variable in front plus $sFor example: Define ("PI", 3.14); Define a constant$area

Through the internship in the company one months, slowly on the CSS and HTML is more familiar with, these days began to study JS, today with JS write a jquery animate function, tested, performance can also. Personally feel that jquery is not

Tensor data-related operation and function explanation Tensor It is used in TensorFlow to represent data. Can be viewed as a multidimensional array or list. Scalar is tensor, vector is tensor, matrix is tensor, matrix is tensor Several definition

As with a reference, you can make the pointer point to a constant or to a very great amount. A pointer to a constant cannot be used to change the value of the object it refers to. The address of the constant object you want to store. You can only

Note: Define cannot be defined in a class, and the const must be defined in a class, and the const must be accessed by the class name:: Variable name 1. Const is used for class member variable definition once defined and cannot change its value.

Objective Today, I suddenly thought of the PHP official website on a turn, at one glance saw PHP5 launched the notice. Although I have seen the PHP5 of the previous notice, but still carefully read the PHP 5/zend Engine 2.0 new features of a text,

Data type:1. Numeric type (integer int floating-point type floating) 2. String type 3. Boolean (Only two values: Ture fasle) literal number of strings 1. Escape series: Some symbols in JavaScript are not recognizable, and are only shown correctly

PHP5 the new object model The object processing part of PHP has been completely rewritten, with better performance and more functionality. In previous versions of PHP, objects were treated as primitive simple types (such as Integer and string), the

The object class (Class) is the most basic type in a C # type. A class is a data structure that combines states (fields) and behaviors (methods and other function members) in a single unit. class provides a definition for dynamically creating an