{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to cancel derivative market orders?","a":"Confirm order information: Before cancelling the order, please verify the detailed information of the order, such as order number, contract name, buying or selling  direction, opening and closing time, etc., to ensure that you want to cancel the correct order."}]}],"pr":"3e0c4707b291391c42eb6b39b4d9f211bbc6af5f0bd16bd2a139087b54167995"}