C # Review of learning points

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I. NET and C #

Net overview and C # Language

Public Language Runtime Library

Integrated Development Environment

II. C # Language Design Basics

Simple data type	Value Type and reference type	Variables and constants
Expressions and operators	Conditional statement if... else	Conditional statement switch... case
Loop statements while and do	Loop statement	Jump statement break and continue
Handle errors and exceptions

III. C # Design Basics

Class	Class field	Class Method
Class Constructor	Method Overloading	Class attributes
Array	String	Class Indexer

Iv. ApplicationProgramOrganization

Namespace

Assembly

V. C # Object-Oriented Design

Base Class Object of all classes	Packing and unboxing	Encapsulation
Polymorphism	Inheritance Polymorphism	Interface
Delegate	Class events	Custom events

Vi. Io and file systems

. NET Framework	Stream and Its Derived classes	Textreader/textwriter
Binaryreader	Access the File System

VII. Collection class

Understanding collection classes System. Collections	Control the Garbage Collector System. gc. Collect () Garbage Collector	Serialization and deserialization
Use attribute	Runtime type information

The system. Collections namespace contains interfaces and classes that define a set of objects (such as lists, queues, bit arrays, hash tables, and dictionaries.

	Class	Description
	Arraylist	Use an array that can be dynamically increased as needed to implement the ilist interface.
	Bitarray	A compressed array of management bits. This value indicates a Boolean value. True indicates that the bits are open (1), and false indicates that the bits are closed (0 ).
	Hashtable	Indicates the set of key/value pairs. These key/value pairs are based on the hash of the key.Code.
	Queue	Indicates the object's first-in-first-out set.
	Sortedlist	A set of key-value pairs. These key-value pairs are sorted by keys and can be accessed by keys and indexes.
	Stack	A simple post-first-out non-generic set of objects.

8. Database Access

Improving ......