查看表结构个工具，同时还对输入一些查询语句进行测试-Check list structure a tool, but also to input some queries on test

一般用户可以进行留言,管理员可以进行留言的删除,查询等.-General users can post, the administrator can delete messages, queries, and so on.

新华龙C8051F007单片机，按键采集，按下按键，比较器置位，AD采集各个按键查询哪个按下，在执行相应操作-Xinhua dragon C8051F007 MCU, key acquisition, press the button, the comparator position, AD acquisition of each key press queries which, in the implementation of the corresponding operation。