[记] tokio多任务的延时

use tokio::{time};

async fn hh1(){
    for _ in 0..10{
        time::sleep(std::time::Duration::from_secs(3)).await;
        println!("11");
    }
}
async fn hh2(){
    for _ in 0..20{
        time::sleep(std::time::Duration::from_secs(2)).await;
        println!("22");
    }
}
async fn hh3(){
    let d1 = hh1();
    let d2 = hh2();
    tokio::join!(d1,d2);
}

#[tokio::main]
async fn main() {
    // Open a connection to the mini-redis address.
    hh3().await;
}