{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In a blockchain smart contract, how does the logic of executing the query() method work?","a":"Define query  conditions: According to business requirements, define the conditions needed for the query, such as data types, keywords, etc."}]}],"pr":"494ec151c096f8f812bc857220cefc503ab6b0d2c2a0e983fdaa605c59c62b84"}