检查磁盘容量。了解系统信息，有助于我们深刻了解计算机的状态，方便开发与维护．-check disk capacity. Understanding of system information, help us understand the profound state of the computer, facilitate the development and maintenance.

特别方便的工具程序，有本人自己开发， 使用方便-particularly convenient tool for process, I have developed on its own, easy to use