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authorgarhve <git@garhve.com>2022-12-20 11:04:25 +0800
committergarhve <git@garhve.com>2022-12-20 11:04:25 +0800
commit369d11587339ce74f8ebc76f2607fe55545eaf7d (patch)
tree4b25c6f7e3aca08a90b25950f4f8e4430c4294bc /rust/theBook/chapter-2-guessing-game/guessing_game/src/main.rs
parent0f1b6d015243e55a38b1c1b7e8af66668e4e794d (diff)
Build small project following the book
Diffstat (limited to 'rust/theBook/chapter-2-guessing-game/guessing_game/src/main.rs')
-rw-r--r--rust/theBook/chapter-2-guessing-game/guessing_game/src/main.rs35
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diff --git a/rust/theBook/chapter-2-guessing-game/guessing_game/src/main.rs b/rust/theBook/chapter-2-guessing-game/guessing_game/src/main.rs
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+++ b/rust/theBook/chapter-2-guessing-game/guessing_game/src/main.rs
@@ -0,0 +1,35 @@
+use std::io;
+use rand::Rng;
+use std::cmp::Ordering;
+
+fn main() {
+ println!("Guess the number!");
+
+ let secret_number = rand::thread_rng().gen_range(1..=100);
+
+ loop {
+ println!("Please input your number.");
+
+ let mut guess = String::new();
+
+ io::stdin()
+ .read_line(&mut guess)
+ .expect("Failed to read line.");
+
+ 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;
+ },
+ }
+ }
+}