PrefabType 预置类型

转载自：http://game.ceeger.com/Script/Editor_Enumerations/PrefabType/PrefabType.html

The type of a prefab object as returned by EditorUtility.GetPrefabType.

预置物体的类型，由EditorUtility.GetPrefabType返回。

Note: This is an editor class. To use it you have to place your script in Assets/Editor inside your project folder. Editor classes are in the UnityEditor namespace so for C# scripts you need to add "using UnityEditor;" at the beginning of the script.
注意：这是一个编辑器类，如果想使用它你需要把它放到工程目录下的Assets/Editor文件夹下。编辑器类在UnityEditor命名空间下。所以当使用C#脚本时，你需要在脚本前面加上 "using UnityEditor"引用。

Values值

• None
  The object is not a prefab nor an instance of a prefab.
  物体不是一个预制，也不是一个预制的实例。 
• Prefab
  The object is a user created prefab asset.
  物体是用户创建的预置资源。 
• ModelPrefab
  The object is an imported 3D model asset.
  物体是一个导入到3D模型资源。 
• PrefabInstance
  The object is an instance of a user created prefab.
  物体是一个用户创建的预置的实例。 
• ModelPrefabInstance
  The object is an instance of an imported 3D model.
  物体是一个导入3D模型预置的实例。 
• MissingPrefabInstance
  The object was an instance of a prefab, but the original prefab could not be found.
  物体是一个预置的实例，但是源预置没有发现。 
• DisconnectedPrefabInstance
  The object is an instance of a user created prefab, but the connection is broken.
  物体是用户创建的预置的实例，但连接断开。 
• DisconnectedModelPrefab...
  The object is an instance of an imported 3D model, but the connection is broken.
  物体是一个导入3D模型的实例，但连接断开。