我在这里找到了答案 Xcode 4.3在Size Inspector中不显示自动调整大小"面板只需取消选中文件检查器选项卡上的使用自动布局"选项:

I have found the answer here Xcode 4.3 not presenting Autoresizing panel in Size Inspector Just uncheck "Use Auto Layout" option on file inspector tab: