我尝试翻转具有圆角(边框)的View。View的圆角是通过以下方式实现的:privateextensionUIView{funcround(corners:UIRectCorner,radius:CGFloat,borderColor:UIColor,borderWidth:CGFloat){letmask=_round(corners:corners,radius:radius)addBorder(mask:mask,borderColor:borderColor,borderWidth:borderWidth)}@discardableResultfunc_round(corner