return condition ? 100 : 500;
This is often the reason why we don't see explicit implementations used that often. However, one way we can get around this is to find ways to pass around these provider implementations implicitly.。新收录的资料是该领域的重要参考
（五）无正当理由大量持有非本人注册的网络账号的；。业内人士推荐新收录的资料作为进阶阅读
// strict: Catches fire-and-forget writes that ignore backpressure