Rust异步编程

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let mut handles = Vec::new();
for index in 1..=100 {
    let handle = tokio::spawn(
        async_http_client.get(format!("www.example.com/items/{}", index))
    );
    handles.push(handle);
}
for handle in handles {
    let result = handle.await;
}

比较使用异步编写的示例与同步编写的相同示例 - 对于大量并发 Web 请求，异步版本比同步请求快约 60%