DB_HELPER,是本人编写的一个学习database的小工具，适合于初学database的人作为入门参考。java语言编写-DB_HELPER, I prepared a database of small learning tool suitable for the novice database as a reference portal. Java language

java语言学习系统,程序包括学习之路,学习笔记,题库管理,真题试题等功能,方便学习java语言之用.-java language learning systems, procedures including learning path, learning the notes, question bank management, simulated questions, and other functions, facilitate learning java language use.