这意味着，我们要在主要布局容器宽度上使用百分数，比如主内容区域和边栏。

This meant that we use percentages on the main layout container widths, such as the main content area and the sidebar.

youdao

另外还介绍了许多基本GUI控件、容器类型和布局管理器。

I also introduced many of the basic GUI controls, container types, and layout managers.

youdao

所有容器(比如panel)必须拥有布局，而且必须指定布局中的行数和列数。

All containers (for example, a Panel) must have layouts and must specify the number of rows and columns in that layout.

youdao