opencv作业基础1， 适合初学者练习-opencv activity-based, suitable for beginners to practice

包括OpenCV3编程入门的书本、配套练习代码以及本人自己的Onenote笔记，比较基础，适合入门(The book, the supporting practice code, and my own Onenote notes, which include the introduction of OpenCV3 programming, are more basic to the introduction)

此文件包含本人学习OpenCV基础的所有练习，适合OpenCV初学者入门。(This file contains all the exercises that I learn from OpenCV, which is suitable for beginners in OpenCV.)