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                # 容器類Widget 容器類Widget和布局類Widget都作用于其子Widget,不同的是: - 布局類Widget一般都需要接收一個widget數組(children),他們直接或間接繼承自(或包含)MultiChildRenderObjectWidget ;而容器類Widget一般只需要接受一個子Widget(child),他們直接或間接繼承自(或包含)SingleChildRenderObjectWidget。 - 布局類Widget是按照一定的排列方式來對其子Widget進行排列;而容器類Widget一般只是包裝其子Widget,對其添加一些修飾(補白或背景色等)、變換(旋轉或剪裁等)、或限制(大小等)。 注意,Flutter官方并沒有對Widget進行官方分類,我們對其分類主要是為了方便討論和對Widget功能的區分記憶。 ## 本章目錄 - [Padding](padding.html) - [布局限制類容器ConstrainedBox、SizeBox](constrainedbox_and_sizebox.html) - [裝飾容器DecoratedBox](decoratedbox.html) - [變換Transform](transform.html) - [Container容器](container.html) - [Scaffold、TabBar、底部導航](material_scaffold.html)
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