{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In blockchain, how to execute batch cancellation of spot orders?","a":"Firstly, the platform needs to provide an interface for batch  cancellation of spot orders, so that users can submit cancellation requests for multiple spot orders at once."}]}],"pr":"b9b6e6bce3d25145fa1287fce5b6796836336c3d93ca7b9fbd20a9edad7c54e0"}