└→ 2 → 3 → 4 → 5 → 6 → 7 → 8
int bar() { return 857; }
，详情可参考新收录的资料
四步口诀：倒着来 → 弹 ≤ 当前的 → 栈顶即答案 → 当前入栈。
If you've used Claude Code for any real project, you know the dread of watching that "context left until auto-compact" notification creep closer. Your entire conversation, all the context the agent has built up about your codebase, your preferences, your decisions about to be compressed or lost.