paddle安装教程，git clone xxxgit
https://blog.csdn.net/Castlehe/article/details/117356343
只有paddle 1.x 的教程：https://github.com/PaddlePaddle/PaddleOCR/blob/static/doc/doc_en/quickstart_en.md
报错是因为安装的是paddle 2.x而教程只给了1.x,
https://blog.csdn.net/u013171226/article/details/115328047
