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.
Export — GIF and video export
，详情可参考heLLoword翻译官方下载
蚀刻宽度过大，正面屏幕观感就会受到影响，导致屏幕亮度腰斩、画面模糊、出现摩尔纹等等问题。，更多细节参见旺商聊官方下载
class DatabaseStorage(Storage):