| 摘要 |
An artwork-trading computer system includes a primary auction for trading an artwork put up by an artist for the first time and a secondary auction for the following reselling. A server judges whether a bidding is for the primary auction or the secondary auction. When the server judges it as the primary auction, the server sends the artist a signal for requesting to select a winning bidder among the bidding collectors. Meanwhile, when the server judges it as the secondary auction, the server decides the winning bidder who offers the best bid price.
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