| instanceRoot | 要保存为预制件的游戏对象。 |
| assetPath | 要在其中保存预制件的路径。 |
| success | 保存操作的结果（成功或不成功）。将其与控制台日志一起使用，从而进一步了解保存过程。 |
使用该函数，在给定路径上，从给定的游戏对象创建一个预制件资源（包括场景中的任何子项），而不修改输入对象。
如果某些子项是预制件实例，则会自动将这些子项嵌套在新预制件内。
输入对象必须是普通游戏对象或预制件实例的最外层根。
如果输入对象是预制件实例根，则生成的预制件将是预制件变体。在此情况下，如果您实际上想要新建唯一的预制件，需要首先解压该实例。
另请参阅：SaveAsPrefabAssetAndConnect、UnpackPrefabInstance。
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