License

Copyright (c) 2020 Reverier Xu

特此免费授予获得此软件和相关文档文件（“软件”）副本的任何人无限制使用软件的权利，
包括但不限于使用，复制，修改，合并的权利，发布，分发，再许可和/或出售本软件的副本，
并允许具备软件的人员这样做，但须满足以下条件：

0,你可以对本软件进行二次开发并取得商业盈利, 但本软件在二次开发前已有的代码/功能在再分发时
不可做出任何收费或使用限制.

1,上述版权声明和此许可声明应包含在本软件的所有副本或大部分内容中。

本软件按“原样”提供，不提供任何形式的明示或暗示的保证，包括但不限于对适销性，
特定目的的适用性和非侵权性的保证。无论是由于软件，使用或其他方式产生的，
与之有关或与之有关的合同，侵权或其他形式的任何索赔，损害或其他责任，
作者或版权所有者概不负责。

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

0,You can conduct secondary development of this software and obtain 
commercial profits, but the code/features existing before the secondary 
development of this software may not be subject to any charges or use restrictions.

1,The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.