本仓库内所有演示文稿的版权归 [李晗] 所有，并在Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License下授权。
本仓库内的所有演示文稿使用Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License许可。这意味着任何人都可以自由使用、复制、修改和分享本仓库内的演示文稿，但需要遵守以下条件：
- 署名：必须适当署名、提供许可证链接，并注明是否进行了修改。你可以采用任何合理的方式署名，但不得以任何方式暗示许可方认可你或你的使用。
- 非商业性使用：你不得将本仓库内的演示文稿用于商业目的。
- 相同方式共享：如果你对本仓库内的演示文稿进行了混合、转换或构建，你必须按照与原作相同的许可证发布你的派生作品。
All persentations in this repository are copyright © [Han Li] and licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
All persentations in this repository are licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. This means that anyone is free to use, copy, modify, and share the persentations in this repository, subject to the following conditions:
- Attribution: You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial: You may not use the persentations in this repository for commercial purposes.
- ShareAlike: If you remix, transform, or build upon the persentations in this repository, you must distribute your contributions under the same license as the original.