C++程序设计:https://www.bilibili.com/video/BV1et411b73Z?p=1&vd_source=3f5a8785a0825ec45e3bd34e3437f81e
数据结构(付费):https://www.bilibili.com/cheese/play/ss1468?csource=Hp_searchresult&spm_id_from=333.337.0.0
离散数学(付费):https://www.bilibili.com/cheese/play/ep245858?t=308&csource=common_hp_history_null