Red red;
Green green;
Blue, blue.
VB is a kind of? Microsoft? The company has developed a structured, modular and object-oriented visual programming language, which uses event-driven mechanism to assist the development environment. By any standard, VB is the most widely used language in the world-no matter how many developers praise VB or complain about VB. It comes from the BASIC programming language. VB has a graphical user interface (GUI) and a rapid application development (RAD) system, so it can easily connect to a database or create ActiveX controls using DAO, RDO and ADO. Programmers can easily use the components provided by VB to quickly build an application.