{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do you debug and test in a blockchain?","a":"Learn the  basic concepts and technologies of the blockchain: First, you need to understand the basic principles, technical architecture, and mainstream platforms of the blockchain, such as Bitcoin, Ethereum, and Changan Chain."}]}],"pr":"5ebd5aaea9ce90974a14c86eeefa0d7de4b026e45ecd9567a5187d5cbb96b957"}