Linux下的 数据库操作 通过对数据库的选择，可以过渡到对数据库的整个增删查改-the select from mysql under Linux

实现数据库的增删查改，对商品的添加修改删除，可以用来做期末作业和毕设等等。(To add and delete the database, to add, modify and delete the products, it can be used to do the final assignment and completion.)