Abstract: In the course “Compiler Principle”, there are many knowledge points and very complex concepts, which are too theoretical that the algorithms are difficult to understand, with high complexity and abstraction, not closely linked with the actual. For these problems, we analyze the necessity of the compiler process visualization in the “Compiler Principle” teaching as well as the defects and deficiencies of the existing studies, design and implement the PVC3TAI, which function is more complete, user-friendly, visual process is more detail, specific and can dynamically display the process of compiling operation mechanism. Therefore, combining theory with practice, the better teaching results are achieved.

Key words: compiler, class C, process visualization