菜单类界面，其中涉及多窗口及数据库，进度条，时间显示等内容-Menu type interface, which involves multi-window and the database, progress bar, time display, etc.

这里给出了一款tablemodel，主要是用数据库和qt一起来用的。很全很详细-Here given a tablemodel, and together with the database and qt. Very full very detailed