AssetImporter类

/// An AssetImporter is used by the AssetDatabase to convert an asset file (textures/ sound/ meshes etc.) into /// an Object that can be serialized, like converting a jpg texture file into a Texture2D class, which can then /// be made persistent and serialized to disk. The Texture2D class should not know about how to load from assets.

//CRE:AssetImporter被AssetDataBase用于把一个资产文件（texture/sound/mesh etc）转换为一个可序列化的Object。
//比如转换一个jpg纹理到Texture2D类型。Texture2D可以序列化到磁盘，Texture2D文件不应该直到如何从资产中加载。

/// void GenerateAssetData has to be overridden in order to convert the asset file to the serializable object. /// You can get the AssetsPathName that should be loaded by using: GetCompleteAssetPathName () /// Inside GenerateAssetData you have to create the object, load it /// somehow from the pathname and add the instanceID of the the created objects to objectsLoadedFromAsset /// If you generate datatemplates you have to do the same for the datatemplates

//CRE: //为了将资产文件转换为可序列化对象，必须重写void GenerateAssetData。 //可以使用GetCompleteAssetPathName（）获取应该加载的AssetPathName //在GenerateAssetData中，您必须创建对象,从路径名加载它 //并将创建的对象的instanceID添加到objectsLoadedFromAsst //如果生成数据模板，则必须对数据模板执行相同的操作。

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