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单词 visual basic
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Visual Basic


Vis′ual Ba′sic

Trademark. a computer programming language, a descendant of BASIC, that provides a graphical or visual programming environment and is used primarily to develop user interfaces.

Visual Basic


Visual BASIC

(language)(VB) A popular event-driven visual programmingsystem from Microsoft Corporation for Microsoft Windows.VB is good for developing Windows interfaces, it invokesfragments of BASIC code when the user performs certainoperations on graphical objects on-screen. It is widely usedfor in-house application program development and forprototyping. It can also be used to create ActiveX andCOM components.

Version 1 was released in 1991 Latest version: 6, as of 1999-11-26.

http://msdn.microsoft.com/vbasic/.History.Strollo Software.Books.

Visual Basic

A version of the BASIC programming language from Microsoft specialized for developing Windows applications. When first released in 1991, it was similar to Microsoft's QuickBASIC. With its visual user interface development tools, Visual Basic became very popular by the mid-1990s. Visual Basic 6.0, which was released in early 1999, was the last version of Visual Basic to be offered as a stand-alone development product. Visual Basic became part of Visual Studio.NET.

Visual Basic for Applications (VBA) is a subset that provides a common macro language included with many Microsoft applications.

Up until VB 5, the Visual Basic compiler only converted the source code written by the programmer into an intermediate language called "bytecode." Starting with VB 5, native executable programs can be generated.

The VB Runtime Module
No matter what the version, in order to run a VB program, the VB runtime module must reside in the target computer. This .DLL file, named VBRUNxxx (up to VB 4) or MSVBVMxx (VB 5 and 6), where x is the version number, contains necessary runtime libraries and also converts programs compiled to bytecode into the machine language of the computer. The runtime DLLs are widely available and typically accompany a Visual Basic application. See VB.NET and VBScript.


Visual Basic Uses Bytecode
Similar to Java, Visual Basic is compiled into an intermediate language called "bytecode." The bytecode is translated into x86 machine language by the Visual Basic runtime module.
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