April 10, 2022 -- take the first step with C -- use C from Net class library call method (not understood)

Use... By calling a method that returns a value .NET Functions in class libraries , Accept input parameters, etc .

C# Programming languages are complemented by larger libraries , Enables you to create a desktop or Web Applications 、 Access files or Internet Data in 、 Perform advanced mathematical operations, etc .

.NET Introduction to class library

What is? .NET Class library ？

.Net A class library is a collection of thousands of classes containing thousands of methods .

Even data types are .NET Part of the class library

What is a namespace ？

How to be in .NET Find what you need in the class library

call .NET Different kinds of methods in the class library

How to call .NET Methods in class libraries

call .NET Different kinds of methods in the class library

Stateful and stateless methods

Create an instance of a class

To create a new instance of a class , Please use new Operator .

new Operator performs the following important operations ：

First, request a large enough computer memory address , For storage based on Random Class .

Create a new object , And store it in the memory address .

Return memory address , Keep it in dice variable .

Why? Next() Methods are stateful ？

How to determine whether an instance of a class needs to be created first , It then calls its methods ？

Handle return values and input parameters

A stateful （ example ） Methods and stateless （ static state ） Method .

Return value

Input parameters

Overloaded method

Use IntelliSense

Information about overloaded methods , Please use docs.microsoft.com