{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to avoid smart contract vulnerabilities in blockchain?","a":"Choose appropriate programming languages and frameworks: The writing of smart contracts usually uses programming languages such as Solidity, Vyper, etc. When choosing these languages and frameworks, it is necessary to ensure that they have good security performance, and to pay attention to the disclosure  and repair of vulnerabilities in relevant communities."}]}],"pr":"7b4be3d33b4c295cd851272ff870b1e263cd86d1114b75cd0440c498fee0d9ee"}