use std::io;
use rand::Rng;
use std::cmp::Ordering;
fn main() {
println!("Welcome to guessing game!");
println!("Guess the number!");
let secret_number = rand::thread_rng().gen_range(1..101);
println!("The secret number is: {}", secret_number);
loop {
let mut guess = String::new();
io::stdin().read_line(&mut guess).expect("Failed to read line");
println!("Please input your guess.");
// let guess:u32 = guess.trim().parse().expect("Please type a number!");
// shadow
let guess: u32 = match guess.trim().parse() {
Ok(num) => num,
Err(_) => {
println!("Please input a number!");
continue;
},
};
match guess.cmp(&secret_number) {
Ordering::Less => println!("Too small!"),
Ordering::Greater => println!("Too big!"),
Ordering::Equal => {
println!("You win!");
break;
},
}
}
}
