{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to record logs in a blockchain without using Rust's println! macro?","a":"Using string concatenation: You can use string concatenation to record logs, which avoids using the println! macro. For example, you can record logs using the following method:↵↵```rust↵let  log_message ="}]}],"pr":"011aaba609dcd2e07f87b0c7ccb2b54f1fd75b1596af02608be9df8ae1cff731"}