一言难尽
参考资料：
https://github.com/PaddlePaddle/FastDeploy/tree/develop/examples/vision/ocr/PP-OCR/cpu-gpu/python
https://github.com/PaddlePaddle/Paddle
https://github.com/PaddlePaddle/PaddleOCR
https://www.paddlepaddle.org.cn
https://github.com/PaddlePaddle/FastDeploy