The full name of vb is Visual Basic, which is a high-level programming language; vb is a general object-based programming language. It is a structured, modular, object-oriented, and event-assisted development environment. A visual programming language driven by mechanisms.
VB is Visual Basic, which is a programming language in itself. It is a high-level language.
Visual Basic (VB for short) is a general object-based programming language developed by Microsoft. It is structured, modular, object-oriented, and includes events to assist in the development environment. A visual programming language driven by mechanisms. It is a language that can be used for Microsoft's own product development.
"Visual" refers to the method of developing a graphical user interface (GUI) - instead of writing a lot of code to describe the appearance and position of interface elements, you only need to add pre-created objects to a point on the screen That’s it. "Basic" refers to the BASIC (Beginners All-Purpose Symbolic Instruction Code) language, which is the most widely used language in the history of computing technology development.
Visual Basic is derived from the BASIC programming language. VB has a graphical user interface (GUI) and a rapid application development (RAD) system. You can easily use DAO, RDO, and ADO to connect to the database, or easily create Active X controls for efficient generation of type-safe and object-oriented applications. [2] . Programmers can easily use the components provided by VB to quickly build an application.
Language features
Making application installation disks, etc. provides users with a friendly integrated development environment, which is specifically reflected in:
Visual design platform: When programming using traditional programming languages, you generally need to write programs to design the interface of the application (such as the appearance and location of the interface, etc.), which is invisible during the design process. The actual effect of the interface. In Visual Basic 6.0, object-oriented programming is used to encapsulate programs and data as an object, and each object is visible. When designing the interface, developers can directly use the toolbox of Visual Basic 6.0 to "draw" different types of objects such as windows, menus, and command keys on the screen, and set properties for each object. All developers have to do is write code for the object to complete the event process, so the efficiency of programming can be greatly improved.
Event-driven programming mechanism: A process-oriented program is composed of a main program and several subprograms and functions. When a program is run, it always starts with the main program, and the main program calls subroutines and functions. Developers must determine the execution order of the entire program in advance when programming. The event-driven programming of Visual Basic 6.0 codes the relevant events triggered by the user on an object. Each event can drive the running of a program. Developers only need to write code that responds to user actions. Such application code is streamlined and easier to write and maintain.
Structured programming language: Visual Basic 6.0 has rich data types and numerous internal functions. It adopts modular and structured programming language, with clear structure, simple syntax and easy to learn.
Powerful database functions: Visual Basic 6.0 can use data controls to access various database systems such as Access and FoxPro, as well as various spreadsheets such as Excel and Lotus.
ActiveX Technology: ActiveX develops the original OLE technology, allowing developers to get rid of the constraints of a specific language and conveniently use the functions provided by other applications, enabling Visual Basic 6.0 to develop An application that integrates sounds, images, animations, word processing, spreadsheets, Web and other objects.
Network function: The DHTML (dynamic HTML) design tool provided by Visual Basic 6.0 allows developers to dynamically create and edit Web pages, allowing users to develop multi-functional network application software .
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