{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to record logs in a blockchain, avoiding the use of Rust's println! macro?","a":"In blockchain, log recording is an essential step because it can help developers and operation personnel track  and diagnose system status. To avoid using Rust's println! macro, you can adopt the following methods to record logs:\\n\\n1. Use logging libraries: There are many popular logging libraries in the Rust ecosystem, such as log4rs, logrus, or serde_log. These libraries offer rich features such as log levels, log filtering, log formatting, etc. By using these libraries, you can easily log to files, consoles, or other destinations.\\n\\n2. Create a custom logger: You can create a custom logger based on your project requirements"}]}],"pr":"2a3ce3abe4f7b8e23e53f4b1a83ae4e1a22b4ab41fc36e60ae8f777611c205bc"}