Under the hood, BPattern builds a pattern AST using the same pattern node classes as the rewrite engine. All the original matching and rewriting machinery is still there — just wrapped in a more approachable, scriptable interface.
2. Tap the three dots at the top right corner and select Extension.
，更多细节参见WPS下载最新地址
Фото: Александр Вильф / РИА Новости
* 时间复杂度: O(n²) 最好: O(n) 空间复杂度: O(1) 稳定: ✓
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