3.rust学习

好吧，我会写rust了🤦🏻‍♀️

use std::io;
use std::cmp::Ordering;
use rand::Rng;
fn main() {
    println!("Guess the number");
    let secret_number = rand::thread_rng().gen_range(1, 101);
    // println!("the secret_number is {}", secret_number);
    loop {
      println!("input pleaet your guess");
      let mut guess = String::new();
      io::stdin().read_line(&mut guess)
                .expect("failed to read");

      // let guess: u32 = guess.trim().parse()
      //                         .expect("Please type a number");
      let guess: u32 = match guess.trim().parse() {
        Ok(num) => num,
        Err(_) => continue,
      };
      println!("you guessed: {}", guess);

      match guess.cmp(&secret_number) {
        Ordering::Less => println!("Too small"),
        Ordering::Greater => println!("Too big"),
        Ordering::Equal => {
          println!("You win");
          break;
        }
      }
    }
    let x = 5;
    println!("x {}", x);
    let x= 6;
    println!("x {}", x);
}