Rust:剑指C++

Rust：极富活力和前途的编程语言，剑指C++

今天开始学习Rust,马上要回去休息了，只贴上一段实例代码，在后续的学习中，会对这种语言进行一个详尽的介绍（学习中。。。。）。

extern crate rand;

use std::io;
use std::cmp::Ordering;
use rand::Rng;

fn main() {
    println!("This is the test for guessing number!");

    let secret_number = rand::thread_rng().gen_range(1,101);

    //println!("the secret_number is {}",secret_number);

    loop{
        println!("Please input your guess");
    
        let mut guess=String::new();
        
        io::stdin().read_line(&mut guess)
                    .ok()
                    .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!("To small"),
            Ordering::Greater =>println!("Too big"),
            Ordering::Equal =>{
                println!("You Win");
                break;
            }
        }
    }

}

据说这种语言编程效率很高，^_^,学习学习！

转载于:https://www.cnblogs.com/litengyao/p/4652602.html