> For the complete documentation index, see [llms.txt](https://conflux-technical-support.gitbook.io/conflux-nft-kai-fa-zhi-nan/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://conflux-technical-support.gitbook.io/conflux-nft-kai-fa-zhi-nan/he-yue-mei-ju-han-shu-shuo-ming.md).

# 合约枚举函数说明

- [枚举扩展(Enumeration extension)](https://conflux-technical-support.gitbook.io/conflux-nft-kai-fa-zhi-nan/he-yue-mei-ju-han-shu-shuo-ming/mei-ju-kuo-zhan-enumeration-extension.md): The enumeration extension is OPTIONAL for ERC-721 smart contracts. This allows your contract to publish its full list of NFTs and make them discoverable.
- [NFT 1.O 枚举函数](https://conflux-technical-support.gitbook.io/conflux-nft-kai-fa-zhi-nan/he-yue-mei-ju-han-shu-shuo-ming/nft-1.o-mei-ju-han-shu.md): For CRC 1155 only
- [NFT 2.O 枚举函数](https://conflux-technical-support.gitbook.io/conflux-nft-kai-fa-zhi-nan/he-yue-mei-ju-han-shu-shuo-ming/nft-2.o-mei-ju-han-shu.md): For CRC 721 & 1155