用于查询文件的版本控制系统状态的选项。
| ForceUpdate | 强制刷新文件的版本控制系统状态。此操作缓慢但很准确。另请参阅：AssetDatabase.IsOpenForEdit、AssetDatabase.IsMetaFileOpenForEdit。 |
| UseCachedIfPossible | Use the last known version control system status of the file. This is faster on average but less accurate than forcing an update, as it will cache the status of the file for a period of time.另请参阅：AssetDatabase.IsOpenForEdit、AssetDatabase.IsMetaFileOpenForEdit。 |