Network Security Internet Technology Development Database Servers Mobile Phone Android Software Apple Software Computer Software News IT Information

In addition to Weibo, there is also WeChat

Please pay attention

WeChat public account

Shulou

How to use the VB.NET enumeration

2025-01-18 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

Share

Shulou(Shulou.com)06/02 Report--

This article mainly introduces how to use VB.NET enumeration, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

A quantity that is always fixed during the running of a program is called a constant. Because some constants are often used repeatedly in program design and development, and the meaning they represent is sometimes very difficult to remember, it needs to be checked every time. If a constant is defined, it will be simplified. It can improve the readability and maintainability of the code.

Note that you cannot arbitrarily modify and assign new values. There are two sources of constants in vb.net, which are customized by the user using the compare statement, or pre-defined by the system. You can open the list of constants in the vb.net' and vba object libraries through the menu "View"-"other window"-"object browser" command or pressing the ctrl+alt+j key combination at the same time. These constants can be used with your application's objects, methods, and properties, and the object library of each activex control defines separate constants.

The syntax format for declaring constants is as follows:

[public | private | friend l protected | pr0 tected friend | const constant name [as type] = expression

Constant name: any valid symbolic name.

Expression: consists of characters or numeric constants and operators, or an expression that results in a number or a string. However, function calls cannot be used in expressions. Note that if option strict is turned on in the program, the statement needs to declare constants explicitly.

Const statements can declare constants that represent quantity, string, time, or date. For example:

The following is the referenced content:

Const pi=3.14159265358979323846 private const sum as inteqer=1000

For use in. The declaration of the scope of the VB.NET enumeration function type still uses public, private, protected, and friend. VB.NET enumeration for example:

The following is the referenced content:

Private enum months public enum months protected enum months friend enum months protected friend enum months thank you for reading this article carefully. I hope the article "how to use VB.NET enumeration" shared by the editor will be helpful to you. At the same time, I also hope you will support us and follow the industry information channel. More related knowledge is waiting for you to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.

Views: 0

*The comments in the above article only represent the author's personal views and do not represent the views and positions of this website. If you have more insights, please feel free to contribute and share.

Share To

Development

Wechat

© 2024 shulou.com SLNews company. All rights reserved.

12
Report