Research on Controls-Based Visual Programming

The current programming environment only implements the visualization programming of the software interface. The process of programming is not fully visualization; programmers still need to input codes line by line. And the current programming languages are not the visual programming language in the true sense. If the programming language is made up of series of graphic expressions, then it is under the name of visual programming language. This paper provides a new kind of visual programming language UVPL (Uniform Visual Programming Language). It makes the visual components as grammar cells, and constitutes a series of visual sentences in accordance with predetermined grammar rules. Then it can be able to automatically generate the text codes, and to generate the designated codes in other existing languages such as C, Java or Pascal, the whole Encoding Process is visual. It reduced morphology and syntax error rates, shortened the debugging time, improved the development efficiency.