cangjie-stdio

To read console input in Cangjie, use the built-in `readln` function. This captures standard input streams, allowing your interactive command-line applications to prompt users for information and process responses directly.

To print messages in Cangjie, use the built-in `print` and `println` functions. These handle standard output streams, displaying program results and text to the console during execution.

To write error messages to the standard error stream in Cangjie, use the `eprintln` and `eprint` functions. This differentiates error logging from standard output, ensuring proper execution flow tracking.

Yes, you can access raw input and output streams in Cangjie using `std.env`. This provides advanced stream control for granular console reading and writing beyond basic built-in functions.

The best way to build interactive command-line applications in Cangjie is combining `println` for prompts, `readln` for user input, and `eprintln` for error logging. This manages standard input, output, and error streams effectively.