说明：  本教程将阐述无监督特征学习和深入学习的主要观点。通过学习，你也将实现多个功能 学习/深度学习算法，能看到它们为你工作，并学习如何应用/适应这些想法到新问题上。（吴恩达等著)
(This tutorial will explain the main points of unsupervised feature learning and in-depth learning. Through learning, you will also implement multiple functional learning / deep learning algorithms, see them work for you, and learn how to apply / adapt these ideas to new problems.)