Java实现的学籍管理系统，具有基本的增删改查的功能，并涉及到多线程的操作-Java implementation of the school management system, has the basic CRUD functionality, and it comes to multi-threaded operating

初学Java，自己编写的MySql数据库的操作，包括增删改查，以及一些遇到的问题，-Beginner Java, I have written MySql database operations, including CRUD, as well as some of the problems encountered,

初学Java，自己编写的MySql数据库的操作，包括增删改查，以及一些遇到的问题，-Beginner Java, I have written MySql database operations, including CRUD, as well as some of the problems encountered,