{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the prerequisites for setting up a blockchain Rust program development environment?","a":"Set up a domestic mirror source: To improve the download speed, you can set up a domestic  mirror source. During the Rust installation process, choose the"}]}],"pr":"f742fc5dbebd3a81da3c728d64a5f7858c3dd44f3ff12a69ac025530f525f72f"}