> For the complete documentation index, see [llms.txt](https://kuma-3.gitbook.io/yuliverse-bai-pi-shu-by-fen-si-fan-yi-ru-you-yi-wen-qing-yi-guan-fang-ying-wen-ban-wei-zhu-v1.0/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kuma-3.gitbook.io/yuliverse-bai-pi-shu-by-fen-si-fan-yi-ru-you-yi-wen-qing-yi-guan-fang-ying-wen-ban-wei-zhu-v1.0/jiao-yi-xi-tong.md).

# 交易系統

Trading Systems

玩家可以通過交易市場買賣和拍賣NFT及遊戲道具。交易市場有以下幾種系統：