定弹出条件：看题目要的是「第一个 / ≥ / < / ≤ cur」，对照上文的弹出条件对应法则决定弹谁。
First of all, it’s more work. Just design your language properly instead of offloading the burden onto users. This makes the language harder to read and understand, and much more difficult to build fast compilers, editors, analyzers, and debuggers.
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2026-03-06 09:00:00
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