C # Study Notes (September April 5)

Benefits of using namespaces

U program code can be dispersed in multiple files
U namespace extensibility
U can build a hierarchical class Organizational Structure
How to Use namespaces
U uses PascalCasing to separate logical groups
U. We recommend that you use the company name or brand name at the top.
U appropriately make the plural namespace
The name of the u namespace must not be the same as that of the class.

Class is the basic unit for Data encapsulation and the minimum unit for reuse. An object is a class object, and a class is a description of the object in memory.

Data encapsulation aims to combine data and methods into a single element and control the data access mode. C # provides five modifiers: public, private, protected, internal, and protected internal to control member visibility.
The namespace is an element of the C # program, used to organize the C # program. It is also used to solve the problem of name conflicts between different groups of program codes.