> For the complete documentation index, see [llms.txt](https://exchangeopenapi.gitbook.io/pri-openapi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://exchangeopenapi.gitbook.io/pri-openapi/zhong-wen-wen-dang.md).

# 中文文档

- [文档说明](https://exchangeopenapi.gitbook.io/pri-openapi/zhong-wen-wen-dang/wen-dang-shuo-ming.md)
- [返回码类型](https://exchangeopenapi.gitbook.io/pri-openapi/zhong-wen-wen-dang/fan-hui-ma-lei-xing.md): 异常码和错误码的描述和原因
- [枚举类型](https://exchangeopenapi.gitbook.io/pri-openapi/zhong-wen-wen-dang/mei-ju-lei-xing.md)
- [现货交易](https://exchangeopenapi.gitbook.io/pri-openapi/zhong-wen-wen-dang/xian-huo-jiao-yi.md)
- [合约交易](https://exchangeopenapi.gitbook.io/pri-openapi/zhong-wen-wen-dang/he-yue-jiao-yi.md)
- [Websocket推送](https://exchangeopenapi.gitbook.io/pri-openapi/zhong-wen-wen-dang/websocket-tui-song.md)
- [SDK开发库](https://exchangeopenapi.gitbook.io/pri-openapi/zhong-wen-wen-dang/sdk-kai-fa-ku.md)
- [常见问题](https://exchangeopenapi.gitbook.io/pri-openapi/zhong-wen-wen-dang/chang-jian-wen-ti.md)