To build and mint an ERC721 NFT
| contract address:
https://goerli.etherscan.io/address/0x3a3d7be961ad2ee4c78cfe55605db0c43f82e716| NFT address:
https://goerli.etherscan.io/token/0x3a3d7be961ad2ee4c78cfe55605db0c43f82e716| view on test.opensea:
https://testnets.opensea.io/zh-CN/assets/goerli/0x3a3d7be961ad2ee4c78cfe55605db0c43f82e716/0