Himself A small white one, the most recent laboratory needs to use VB to write A software of A star algorithm, I never before learning VB, because time is tight, had to learn VB, watching algorithm, downloaded from the Internet A few examples of A star algorithm, there are belt running effect (drew A diagram, click it again after the operation completely simulation), the code is too long, can't understand completely, I only need A star algorithm code section, don't need to have the demonstration part, I mainly want to understand the code of A star algorithm that can have A great god share ah, had better be annotated, the younger brother grateful