此段代码主要为刚入门的VB及数据库练习的新手，希望通过此代码提高并稳固其编程基础，以此来提高自己的实际操作能力，进而为编程做出更大的贡献。-This code is just getting started VB and database exercise novice, this code is to enhance and consolidate its programming base, in order to improve their practical ability, and th