中文说明：此程序是自由软件 ；你可以将它重新分发和/或修改它根据 GNU 通用公共许可证发布的条款自由软件基金会 ；两个版本 1，或 （在您的选项）任何更新的版本。
English Description：
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version.