hi，where to download module datasets？ about fpconv

[lyqun]

Actually, datasets is one of the submodules in this repo and dose not need to be downloaded.

If your Python working directory is not the root directory of this repo, you may need to export PYTHONPATH by

export PYTHONPATH=<path_to_this_repo>:$PYTHONPATH

[Zhongwei-Luo]

实际上，它datasets是此存储库中的子模块之一，无需下载。

如果您的Python工作目录不是此存储库的根目录，则可能需要通过以下方式导出PYTHONPATH：

export PYTHONPATH=<path_to_this_repo>:$PYTHONPATH

thanks