我自制的文件夹备份工具。程序代码用到VB自身的文件复制、删除、查找。自定义备份周期，启动自动隐藏，按热键Ctrl+alt+f9自动呼出，保存源和目标位置等功能，很适合初学者学习。-I made a folder backup tool. VB code to use its own copy, delete, search. Custom backup cycle, start the Auto Hide, by hotkey Ctrl+ Alt+ F9 automatically exhale