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我不知道为什么,但我的视图的边界是 0。我创建了一个 IBOutlet 并且当我访问边界时: self.openGLView.bounds 高度和宽度为 0,即使在 Interface Builder 中大小不是 0(我的意思是,视图似乎大于 0)。为什么会这样?