1、指导思想
https://www.cnblogs.com/by1990/archive/2011/11/29/2267301.html
2、MFC教程
https://blog.csdn.net/wxq_wuxingquan/article/details/55668921
3、MFC画图
多种图形：
https://blog.csdn.net/wxq_wuxingquan/article/details/55668921
画圆：
https://blog.csdn.net/qq_40738840/article/details/82916505
https://blog.csdn.net/a379039233/article/details/46691821
https://bbs.csdn.net/topics/392147800
画直角坐标：
https://blog.csdn.net/lijiayu2015/article/details/52885475
在控件上画图：
http://blog.sina.com.cn/s/blog_53fdc1270100hb5h.html
https://blog.csdn.net/phenixyf/article/details/38422891
https://blog.csdn.net/w110223/article/details/7294256/
4、CDC与GDI
原理：
https://blog.csdn.net/wenzhou1219/article/details/22325247
详细教程：
https://blog.csdn.net/i_likechard/article/details/51545534
https://lellansin.wordpress.com/2014/07/28/windows-gdi-%E6%95%99%E7%A8%8B%EF%BC%88%E4%B8%80%EF%BC%89-%E4%B8%80%E4%B8%AA%E7%AE%80%E5%8D%95%E7%9A%84%E7%BB%98%E5%9B%BE%E7%A8%8B%E5%BA%8F/
https://blog.csdn.net/lab131415926/article/details/44261347
5、MFC消息
http://www.cnblogs.com/kekec/p/3210696.html
6、MFC宏
https://blog.csdn.net/qq_16334327/article/details/81455577
https://blog.csdn.net/RO_wsy/article/details/7701550
7、编码机制：
https://blog.csdn.net/zhuxipan1990/article/details/51602299
8、Windows API与MFC
https://blog.csdn.net/qq_40775742/article/details/84837629
https://blog.csdn.net/zhuxipan1990/article/details/51360316
https://blog.csdn.net/u012987386/article/details/72868744
(Windows API通过C实现，MFC通过C++实现，后者对前者进行了封装，代码量更少)
DC：可画图的内存对象
CDC：可画图内存对象类
9、DLL
https://www.cnblogs.com/marblemm/p/7804056.html