Print Formatted

Let's print a formatted string:

fn main() {
  n := 5
  println#("3 + 2 is {}", n)
}

redy main.ry
# Compiling... : main.ry
# Completed!   : main.ry

./out/main
# 3 + 2 is 5

As you can see, we finally printed a value stored in n!
Actually, println#() can be passed multiple arguments.
the first argument is called format string, and the arguments remaining after that are called format args. All brackets({}) contained in the format string will be replaced by the format args.