This view is called split view .
此视图称为拆分视图。
When in split view , to apply changes you made in code view to design view , press f5 .
在“拆分”视图中，若要将“代码”视图中的更改应用到“设计”视图，请按f5。
Moves to the next pane of a split pane view of a single document .
移动到单个文档的拆分窗格视图的下一个窗格。
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