说明：  学习小波变换的经典教材，适合高校、实践、工程等领域，帮助大家详细理解小波，并且可以更好地学习c++，欢迎大家下载
(Learning wavelet transform of the classic teaching materials, suitable for colleges and universities, practice, engineering and other fields, to help you understand the wavelet in detail, and can better learn c ++, welcome to download)