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实际题目往往需要先做一步转化（如循环数组、链表转数组、先排序再栈），再套上面模板即可。，更多细节参见雷电模拟器官方版本下载
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For implementers, this promise-heavy design constrains optimization opportunities. The spec mandates specific promise resolution ordering, making it difficult to batch operations or skip unnecessary async boundaries without risking subtle compliance failures. There are many hidden internal optimizations that implementers do make but these can be complicated and difficult to get right.