1.using: In order to avoid using namespaces every time, it is necessary to define a namespace by using the use of the content within the namespace for a specific area of the declaration using A::t;//using declaration
Use it again to invoke the name
Namespace overviewWhat is a namespace? In a broad sense, namespace is a way to encapsulate things. This abstract concept can be seen in many places. For example, a directory in the operating system is used to group related files. For files in the
C ++ namespace, namespace
Namespace)Indicates the visible range of identifier. An identifier can be defined in multiple namespaces. Its meaning in different namespaces is irrelevant. In this way, any identifiers can be defined in a new namespace
PHP object-oriented programming (oop) learning notes (5)-PHP namespace. Namespace overview in PHP, namespace is used to solve two problems encountered when you create reusable code such as classes or functions when writing class libraries or
Namespaces Overview
In PHP, namespaces are used to address two types of problems when creating reusable code such as classes or functions when writing a class library or application:
User-written code conflicts with the name of a
PHP namespace and automatic loading class, PHP namespace loading class
PHP namespace is available only after php5.3. This concept has been available in C # for a long time. The namespace in php is actually the same as that in c.
Why use namespace in
PHP namespace and automatic loading class, PHP namespace loading class. PHP namespaces and automatic loading classes. PHP namespaces are only available after php5.3. This concept has been available in C # for a long time. namesp php namespace and
Autocrat
C ++ namespace
Familiar with the C/C ++ language, familiar with the Windows development platform, skilled in using the MFC self-editor to develop some applications;Familiar with SQL statements, good understanding of databases, and skillful
C # namespace Daquan detailed tutorialThe System namespace contains basic classes that define data types, events, and event handlers;The System.Data namespace contains namespaces and classes that provide data access capabilities;The System.IO
PHP Namespaces and Auto-load classes, PHP namespace loading classes
PHP's namespace (namespace) is only available after php5.3. This concept is already very early in C #, and the namespace in PHP is actually the same as the C # concept.
Why should
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