+ ȜiVRt^RIt^RItRRlt]R8Xd]!4t]!]4R#R#)u Date: 2025/8/18 11:00 Desc: 大连商品交易所-业务/服务-业务参数-交易参数-合约信息查询 http://www.dce.com.cn/dalianshangpin/ywfw/ywcs/jycs/hyxxcx/index.html Nc8V^8dQhR\P/#)return)pd DataFrame)formats"}/Users/mibo/.openclaw/workspace/.venv-ak/lib/python3.14/site-packages/akshare/futures_derivative/futures_contract_info_dce.py __annotate__r s442<<4cRpRRRRRR/p\P!WR7pVP4p\P!VR ,4pVP R R R R RRRRRRRRRRRRRR/ RR7V.R!O,p\P !VR,RR7VR&\P !VR,RR7VR&\P!VR,RRR 7PPVR&\P!VR,RRR 7PPVR&\P!VR,RRR 7PPVR&V#)"u 大连商品交易所-数据中心-业务数据-交易参数-合约信息 http://www.dce.com.cn/dce/channel/list/180.html :return: 交易参数汇总查询 :rtype: pandas.DataFrame z@http://www.dce.com.cn/dcereport/publicweb/tradepara/contractInfolangzh tradeType1 varietyIdall)jsondata contractId合约variety 品种名称 varietyOrderu 品种代码unit 交易单位tick最小变动价位startTradeDate开始交易日 endTradeDate最后交易日endDeliveryDate最后交割日T)columnsinplacecoerce)errorsz%Y%m%d)rr')rrrrrr r") requestspostrrrrename to_numeric to_datetimedtdate)urlpayloadr data_jsontemp_dfs rfutures_contract_info_dcer4 sv MCSUG  c(AIll9V,-G NN ( ~ N N ( / - 0      G!mmGN,CHUGN$&MM':N2OX`$aG !!#!"8H"b "$!"8H"b "$!"8H"b  Nr __main__)__doc__pandasrr(r4__name__futures_contract_info_dce_dfprintr rr<s9 4n z#<#>  &'r