圖像來源，Serenity Strull/ BBC
毕竟，在真正的金矿被发现之前，卖铲子的依然会赚钱——只是不再享有过去那种非理性的“信仰溢价”而已；而随着金矿逐步显现，能实现商业化落地的下游企业，才能将成为未来的核心增长点。
。51吃瓜对此有专业解读
Artie Beaty, Contributing WriterContributing Writer
How does V86 work at the hardware level? When the VM bit (bit 17) of EFLAGS is set, the processor enters a hybrid state: it is still in protected mode with paging and privilege rings active, but most instructions execute as if the processor were in real mode. Segment addresses are computed as selector
// 易错点4：栈空时要存-1（题目要求无更大值返回-1），而非直接存stack2.at(-1)（会得到undefined）