我正在使用XCode 4并使用CoreData。现在，我如何为实体生成类？我曾经在XCode 3中通过点击一个图表实体，转到文件->；新建并选择NSManagedObject类。
由于某种原因，我似乎在XCode 4中找不到它，它没有显示在对话框中。。。
您将在DP5中发现它现在是一个菜单项。最后
如果你是Xcode的新手（像我一样），可以用一些图形来更容易地解释。只需确保在单击“创建NSManagedObject子类”之前选择了所需的实体
I got it working by making the entity CLASS the same as the entity NAME, i.e. "Person" instead of "NSManagedObject". I also noticed that I have to invoke File > New File twice (!) The first time, the Managed Object Class template is not available, but the second time it is. No clue why. I m running XCode 3.2.4.
在编辑xcdatamodel时，您需要选择实体，并确保右侧的Utilities窗格处于打开状态。选择数据模型检查器（右侧的选项卡），就可以将实体的类设置为所需的任何类。
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