What language is VB used for?

Visual Basic (VB for short) is a general object-based programming language developed by Microsoft. It is a structured, modular and object-oriented visual programming language with event-driven mechanism to assist the development environment. Is a language that can be used for Microsoft's own product development.

"Visualization" refers to the method of developing a graphical user interface (GUI)-you don't need to write a lot of code to describe the appearance and location of interface elements, just add pre-established objects at a point on the screen. ?

"Basic" refers to Basic (beginner's general symbol instruction code) language, which is the most widely used language in the history of computing technology development. Visual Basic originated from the Basic programming language.

VB has a graphical user interface (GUI) and a rapid application development (RAD) system. It can easily connect to a database by using DAO, RDO and ADO, or easily create an Active X control to efficiently generate type-safe and object-oriented applications. Programmers can easily use the components provided by VB to quickly build an application.

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Languages derived from Visual Basic:

1、VBA

Visual Basic for Applications(VBA): included in Microsoft applications (such as Microsoft Office) and third-party products (such as WordPerfect and Office). VBA is embedded in various applications, which seems contradictory, but its function is as powerful as VB.

2、VBS

VBScript(VBS): It is the default ASP language and can also be used for Windows scripts and web page coding. Although its grammar is similar to VB, it is a completely different language. VBS does not run with VB runtime, but is interpreted and executed by Windows script host. The difference between the two languages affects the performance of ASP website.

3、 VB.NET

Visual Basic.net(vb.net): When Microsoft is ready to develop a new programming tool, the first decision is whether to make old changes with VB 6.0 or to re-establish a new engineering development tool. Microsoft later developed Visual Basic.net, which is the successor of VB. Net platform. Vb.net programming language is a real object-oriented programming language, which is not completely compatible with VB.

Visual Basic.net(vb.net) is a new generation of vb language, not just a simple upgrade of VB 6.0. VB.NET is very different from VB (generally referring to the version before VB 6.0). Its new features are mainly manifested in the following aspects:

(1), VB.NET is fully integrated into the integrated development environment of Visual Studio, which is different from VB in several aspects. Mainly reflected in the different layouts of forms and menus.

(2)VB.NET project is different from VB. It uses a folder-based model, and all projects are placed in the project folder hierarchy.

(3)VB.NET uses ado.net to access the database, and ado.net is a part of it. netFramework。 There are two main ways to realize data access in vb.net:

One is to create and configure DataAdapter DataAdapter and generate DataSet in the program design stage; The second is to dynamically create configuration data adapters, and create and generate data sets through programming during operation.

(4) In VB.NET, ASP.NET technology is used to write web pages. ASP.NET used a real programming language instead of a scripting language. With the help of asp.net's Web application, XML Web Services and other Web-based functions, the development of asp.net's web pages is very similar to the development of Windows applications, and the code of web pages is well organized.

(5)VB.NET has become a completely object-oriented programming language with more language features.

Visual Basic.net provides a conversion wizard to help developers convert VB 6.0 program code into the corresponding program code in VB.NET.

References:

Baidu encyclopedia -Visual Basic