OBSGetObjectMetaDataProtocol Protocol Reference Conforms to NSObject Declared in OBSGetObjectMetaDataModel.h Overview 获取对象元数据 bucketName required method 桶名 @property (nonatomic, strong, nonnull) NSString *bucketName Declared In OBSGetObjectMetaDataModel.h objectKey required method 对象名 @property (nonatomic, strong, nonnull) NSString *objectKey Declared In OBSGetObjectMetaDataModel.h