| 摘要 |
A data synchronization method includes: acquiring, in a partial-data synchronization process, a first part of a data item which is to be sent to a client, wherein the data item comprises at least the first part and a second part, and acquiring a data link corresponding to at least the second part of the data item; sending the acquired first part of the data item and the data link to the client in the partial-data synchronization process; and when receiving a request including the data link from the client, processing the at least second part of the data item corresponding to the data link. The present invention also discloses a data synchronization system, a data synchronization server and a client, with which a client may directly acquire a second part of a data item with the data link without initiating another data synchronization procedure.
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