中文说明：此程序主要用于实现人脸识别，方法原理是利用主成分分析和流形学习来实现的，代码的每一部分都有详细的注释，人脸识别率很高，可以直接使用！！
English Description：
This program is primarily used to implement facial recognition, methodology is implemented using principal component analysis and manifold learning, each section has detailed notes of the code, a high rate of face recognition, you can directly use it!