What is the use of the using keyword of C #

This article mainly explains the "what is the use of the using keyword of C#". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the use of the using keyword of C#"?

The first statement in any C# program is:

Using System

The using keyword is used to include namespaces in a program. A program can contain multiple using statements

What is C #? C # is a simple, general-purpose, object-oriented programming language developed by Microsoft Microsoft. It inherits the powerful functions of C # and C++, and removes some of their complex features. C # combines the simple visual operation of VB and the high running efficiency of C++, and becomes the preferred language for .NET development because of its strong operation ability, elegant syntax style, innovative language features and convenient component-oriented programming. However, it is not suitable for writing code that is time-critical or very high-performance, because C# lacks the key functionality required by extremely high-performance applications.

Thank you for your reading, the above is the content of "what is the use of the using keyword of C#". After the study of this article, I believe you have a deeper understanding of the use of the using keyword of C#, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!