{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the blockchain injection and version upgrade process work?","a":"Code Writing：On the basis of planning and design，write the underlying code of the blockchain. This  includes writing smart contracts，client programs，node programs, etc., to ensure the cooperative work between various components."}]}],"pr":"dca7cdc7bbcea1e2c51e3803056ef3ba8b11960c5e6a1f768b02b3f032f45d8a"}