限价委托和市价委托撤销订单撤销订单 POST: /v1/future-u/trade/order/cancel Content-Type: application/x-www-form-urlencoded && application/json Parameters参数数据类型是否必须默认值描述取值范围orderIdIntegertrueN/A订单id限流规则200/s/apikeyResponse{ "msgInfo": { "code": "", "msg": "" }, "msg": "", "data": "", //订单id "code": 200}