. NET Platform. NET Framework organizational structure. NET Framework class library CLR C # Introduction

I.. NET platform

. NET can now be regarded as a brand of Microsoft, Microsoft has two very successful brands, that is, Windows and office. NET becomes another brand of Microsoft, it's not just a set of technologies, products, or services (Microsoft's services include MSN, Passport, MSDN subscriptions, etc.)
A brand with some features, such as Rolex, is a watch brand that represents high quality, stylish, expensive, successful, and so on.

Ii.. NET Framework Organizational structure

Mainly includes three parts: 1, Common Language Specification 2,. NET Framework Class Library 3, Common language runtime CLR (managed and execute code)

Iii.. NET Framework Class Library

. NET provides a powerful class library, like the VC has MFC Class Library, Delphi has VCL class library, Java has swing and AWT and other class libraries, these libraries encapsulate the system's underlying functions, and provide a good way to operate, so that developers can easily build applications.

The. NET Framework class Library, which consists of classes, interfaces, and value types, encapsulates the processing capabilities of Windows, networking, files, and multimedia, all supported. NET's programming language to be able to use the class library (unified the development model). The source code for the class library is saved in the. DLL file.

There are about 7,000 classes in the. NET framework (each of which can have hundreds of methods and properties) that are packaged in a functionally similar class library that is contained under the same namespace and that uses a class library to perform different functions by invoking different namespaces.

Tip: When learning a class library, it is not necessary to master all the application technology, to understand the basic architecture and implementation principle of the class library, and to apply it correctly in the development of the program is the most important.

. NET Platform. NET Framework organizational structure. NET Framework class library CLR C # Introduction