CloudKit:如何使用CKFetchShareParticipants和CKModifyRecords获取分享地址？

let share = CKShare(rootRecord: record)
let operation = CKFetchShareParticipantsOperation(shareURLs: [shareURL])
operation.fetchShareParticipantsCompletionBlock = { (shareURL, participants, error) in
    if let error = error {
        print("获取分享参与者失败：\(error.localizedDescription)")
    } else {
        if let participants = participants {
            for participant in participants {
                print("参与者ID：\(participant.userIdentity.userRecordID.recordName)")
                print("参与者名称：\(participant.userIdentity.nameComponents?.givenName ?? "") \(participant.userIdentity.nameComponents?.familyName ?? "")")
                print("参与者角色：\(participant.role.rawValue)")
            }
        }
    }
}
CKContainer.default().add(operation)

let operation = CKModifyRecordsOperation(recordsToSave: [record], recordIDsToDelete: nil)
operation.modifyRecordsCompletionBlock = { (savedRecords, deletedRecordIDs, error) in
    if let error = error {
        print("修改记录失败：\(error.localizedDescription)")
    } else {
        if let savedRecords = savedRecords {
            for savedRecord in savedRecords {
                print("修改成功的记录ID：\(savedRecord.recordID.recordName)")
            }
        }
    }
}
CKContainer.default().privateCloudDatabase.add(operation)