[RUST]async-std协程库

Rust版本: stable 1.39

• 安装crate：

[dependencies]
async-std = "*"

• 简单使用(基于manager-workers模型)：

use async_std::{task, };

type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;

async fn manager() -> Result<()> {
    task::spawn(worker());

    Ok(())
}

async fn worker() -> Result<()> {
    Ok(())
}

fn main() {
    task::block_on(manager());
}