## Gear 合约开发案例解析 - Dutch Auction <p align="center"> <a href="https://gitpod.io/#https://github.com/gear-foundation/dapps-dutch-auction"> <img src="https://gitpod.io/button/open-in-gitpod.svg" width="240" alt="GEAR"> </a> </p> 代码仓库: https://github.com/gear-foundation/dapps-dutch-auction 本 PPT 链接: https://hackmd.io/@btwiuse/dutch-auction --- 常见拍卖机制 1. 英式拍卖：公开竞标往上拾价，最高出价者得 2. 荷式拍卖：价格由高往低降，首个出价者得 --- WIKI: https://wiki.gear-tech.io/docs/examples/dutch-auction/ <p align="center"> <a href="https://gitpod.io/#https://github.com/gear-foundation/dapps-dutch-auction"> <img src="https://gitpod.io/button/open-in-gitpod.svg" width="240" alt="GEAR"> </a> </p> REPO: - NFT 合约 https://github.com/gear-foundation/dapps-non-fungible-token - 荷兰拍卖 https://github.com/gear-foundation/dapps-dutch-auction --- ## build ``` $ make build ``` ## download ``` ./dutch_auction.meta.txt ./target/wasm32-unknown-unknown/release/dutch_auction.opt.wasm ``` ## deploy https://idea.gear-tech.io/?node=wss://testnet.vara.rs --- ## 课后作业 本期作业: 在 [Vara Stable Testnet](https://idea.gear-tech.io/?node=wss://testnet.vara.rs) 上部署 https://github.com/gear-foundation/dapps-dutch-auction 合约，创建并完成拍卖 --- # Questions <img src="https://hackmd.io/_uploads/SyK8P72d2.jpg" width="240" alt="GEAR"> <img src="https://hackmd.io/_uploads/By_kgE3_2.png" width="240" alt="VARA"> 课后答疑频道: https://t.me/Gear_CN