did hello world and guessing game.
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9
the_book/guessing_game/Cargo.toml
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the_book/guessing_game/Cargo.toml
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[package]
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name = "guessing_game"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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rand="0.8.3"
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35
the_book/guessing_game/src/main.rs
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the_book/guessing_game/src/main.rs
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use std::io;
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use std::cmp::Ordering;
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use rand::Rng;
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fn main() {
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println!("guess the number!");
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let secret_number = rand::thread_rng().gen_range(1..101);
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println!("The secret number is: {}", secret_number);
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loop{
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println!("input your guess:");
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let mut guess = String::new();
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io::stdin().read_line(&mut guess).expect("failed to read line");
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println!("you guessed: {}", guess);
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let guess: u32 = match guess.trim().parse(){
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Ok(num) => num,
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Err(_)=>continue,
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};
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match guess.cmp(&secret_number){
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Ordering::Less=>println!("too small!"),
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Ordering::Equal=>{
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println!("you win!");
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break;
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}
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Ordering::Greater=>println!("too big!")
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}
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}
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}
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BIN
the_book/helloWorld
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BIN
the_book/helloWorld
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the_book/helloWorld.rs
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the_book/helloWorld.rs
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fn main(){
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println!("Hello, World!");
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}
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8
the_book/hello_cargo/Cargo.toml
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the_book/hello_cargo/Cargo.toml
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[package]
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name = "hello_cargo"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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3
the_book/hello_cargo/src/main.rs
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the_book/hello_cargo/src/main.rs
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fn main() {
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println!("Hello, world!");
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}
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