what static keyword

PHP Advanced Programming Learning Note 2014.06.10This article discusses the static keyword, which he can use on variables, classes, and methods.1. Static variablesa static variable is a variable that exists only in the scope of a function, but after

One, extern and functionIf a program is made up of multiple source files, the successful compilation generates multiple target files that cannot be run separately because these target files may be associated, such as: The A.obj file may call a

The static in C + +There are two uses for static in C/C + +: Static in process design and static in object-oriented programming. The former applies to ordinary variables and functions, and does not involve class problems.A. Static keywords for

We say that Java is an object-oriented programming language, and the object is to put the data and the operation of the data together, as an interdependent whole, to the same kind of object abstraction of its commonality, is the class in Java, we

There are two types of member variables for the ①java class:         A variable that is modified by the static keyword, called a class variable or static variable           Another no static modifier, for member variables      ② popular Point said:  

Reprint Please specify source: http://blog.csdn.net/ns_code/article/details/88466971, when using floating-point numeric values, the default type is double, followed by F or F is recognized as the float type.2, before using the array must first open

In the Java keyword,static and final are two of the keywords we have to master. Unlike other keywords, they are used in a variety of ways, and can improve the performance of the program and optimize the structure of the program in a certain

static (static) keywords are used to define statics and properties and static can also be used to define static variables and later static bindings. 1. static variable variable A static variable exists only in a local function field, but its value

# # #07.01_ Object-Oriented (construction method constructor Overview and format) (master)* A: Overview and role of construction methods* Initialize the object's data (properties)* B: Construction method Format features* A: The method name is the

This article describes the differences between the static keyword and the self keyword in PHP. This article describes the definition of the static keyword, LateStaticBindings, and the differences between the static keyword and the self keyword, for

This article describes the differences between the static keyword and the self keyword in PHP. This article describes the definition of the static keyword, LateStaticBindings, and the differences between the static keyword and the self keyword, for

The C ++ programming language has been developing for more than 20 years. As a programming language, after such a long period of time, it still plays an important role in the development field and relies on its powerful functions. Here we will

Static keywords are used to define static methods and attributes. Static keywords can also be used to define static variables and Static binding later. 1,Static variable Static variables only exist in local function domains, but their values are not

PHP Advanced Programming Study Notes This article discusses static keywords, which can be used in variables, classes, and methods. 1. Static variables Static variables exist only in the function scope. However, after the function is executed, the

Class structure: there may be three internal elements of the class: constant, property, and method. the function can be understood as a constant outside the class, variables and functions. The code is as follows: Class TEST{Const NAME = 'value';

. H header files are required for compilation, Lib is required for linking, and DLL is required for running. The dependency. Lib is not. dll. If DLL is generated, the Lib file is also generated. If you want to completeSource codeCompilation and

When developing an application on the Java platform, an important feature is that the object is created only when the application is running. In other words, when the program runs, the object's ownership will be finally determined, that is, where

As soon as you define a custom constructor, the default constructor is silently removed from the class and is no longer available! Therefore, if you wish to allow the object user to create an instance of your type with the default constructor, as

Static keywords in PHP and their differences with self keywords This article mainly introduces the static keyword in PHP and the difference between the static keyword and the self keyword. This article describes the definition of the Static keyword

Copy codeThe Code is as follows: Class TEST { Const NAME = 'value'; // constant Public $ name = 'value'; // attribute Public function name () // Method { Echo 'value '; } } ?> In this case, attributes and methods can use three different keywords: