src/doc/book/listings/ch02-guessing-game-tutorial/no-listing-03-convert-string-to-number/src/main.rs

   1 use rand::Rng;
   2 use std::cmp::Ordering;
   3 use std::io;
   4
   5 fn main() {
   6     println!("Guess the number!");
   7
   8     let secret_number = rand::thread_rng().gen_range(1, 101);
   9
  10     println!("The secret number is: {}", secret_number);
  11
  12     println!("Please input your guess.");
  13
  14     // ANCHOR: here
  15     // --snip--
  16
  17     let mut guess = String::new();
  18
  19     io::stdin()
  20         .read_line(&mut guess)
  21         .expect("Failed to read line");
  22
  23     let guess: u32 = guess.trim().parse().expect("Please type a number!");
  24
  25     println!("You guessed: {}", guess);
  26
  27     match guess.cmp(&secret_number) {
  28         Ordering::Less => println!("Too small!"),
  29         Ordering::Greater => println!("Too big!"),
  30         Ordering::Equal => println!("You win!"),
  31     }
  32     // ANCHOR_END: here
  33 }