-session: Session
村里的老人记得那天“交易”的情形：阿爸被放在一个旧菜篮子里，垫着布。篮子旁挂着一捆用红绳扎着的长寿面。阿嬷把钱交出去，孩子抱走。，推荐阅读heLLoword翻译官方下载获取更多信息
self.session = requests.Session()，详情可参考旺商聊官方下载
Green means go.
When VM=1, the protected-mode bit goes low and the Entry PLA selects real-mode entry points -- MOV ES, reg takes the one-line path. Meanwhile, CPL is hardwired to 3 whenever VM=1, so the V86 task always runs at the lowest privilege level, under full paging protection. The OS can use paging to virtualize the 8086's 1 MB address space, even simulating A20 address line wraparound by mapping pages to the same physical frames.