方向遍历顺序说明下一个倒序（从右往左）先处理右侧，栈里存「右侧候选」上一个正序（从左往右）先处理左侧，栈里存「左侧候选」
Patients were warned to expect some disruption as a five-day strike by resident doctors in England got under way on Wednesday 17 December.
，这一点在heLLoword翻译官方下载中也有详细论述
example SNA network might look like this: An S/370 computer running CICS (or
Not Equal: Everything in this space must be different. The answer is 2-2, placed horizontally; 4-4, placed vertically; 0-0, placed vertically.，推荐阅读旺商聊官方下载获取更多信息
that actually did the accounting.。关于这个话题，快连下载安装提供了深入分析
Real-mode programs freely execute CLI and STI to control interrupts, PUSHF and POPF to manipulate flags, INT n for DOS and BIOS calls, and IN/OUT for hardware I/O. In normal protected mode, these instructions are privilege-checked -- they execute normally if the caller has sufficient privilege, and fault otherwise. The 386 can't simply let V86 tasks execute them freely -- a DOS program disabling interrupts would bring down the whole system -- but trapping on every INT 21h call would make V86 impractically slow.