Function understand_safed_shared_thread

pub fn understand_safed_shared_thread()

使用 Arc 和 Mutex 安全共享数据

use std::sync::{Arc, Mutex};
use std::thread;

fn main() {
    let v = Arc::new(Mutex::new(vec![1,2,3]));

    for i in 0..3 {
        let cloned_v = v.clone();
        thread::spawn(move || {
            cloned_v.lock().unwrap().push(i);
        });
    }
}