rust variables in println

In Rust, you can use variables in the println! macro to print their values to the console. To do this, you need to include the variable inside the curly braces {} within the println! statement.

Here's an example:

fn main() {
    let name = "Alice";
    let age = 25;

    println!("My name is {} and I am {} years old.", name, age);
}

In the above code, the variables name and age are included inside the curly braces {} in the println! statement. When the program runs, the values of the variables will be substituted into the placeholders. In this case, the output will be:

My name is Alice and I am 25 years old.

You can include multiple variables within a single println! statement, separated by commas. The order in which you include the variables will determine the order in which their values are printed.

I hope this helps! Let me know if you have any further questions.