frame frame的官方解释如下: The frame rectangle, which describes the view's location and size in its superview's coordinate system. This rectangle defines the size and position of the view in its superview's coordinate system. Use this rectangle during layou…
The frame property contains the frame rectangle, which specifies the size and location of the view in its superview’s coordinate system. frame是指定父视图的位置和大小的 The bounds property contains the bounds rectangle, which specifies the size of the view (and i…