> For the complete documentation index, see [llms.txt](https://dr-tool.gitbook.io/dr_tool/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dr-tool.gitbook.io/dr_tool/chang-yong-gong-ju/tou-yan-lei/he-yue-shu-ju.md).

# 合约数据

### 合约数据，比较各大交易所

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