trpl-zh-cn/listings/ch17-async-await/listing-17-09/src/main.rs

extern crate trpl; // required for mdbook test

fn main() {
    trpl::run(async {
        // ANCHOR: channel
        let (tx, mut rx) = trpl::channel();

        let val = String::from("hi");
        tx.send(val).unwrap();

        let received = rx.recv().await.unwrap();
        println!("Got: {received}");
        // ANCHOR_END: channel
    });
}