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在 contract 文件夹中,其他文件用来测试的,忽略掉
提交上架 NFT: 0x754e73598b6b0059510532a5b53dd6068dcd81ac3a7cdf9d2ed5d06b1662562d
购买 NFT: 0xf937159ae007f8de3cd163752d66b33a8ad8897926f8e619c9b436c689d864e0