switch opt.Name() {
self.config.sleep_max，这一点在51吃瓜中也有详细论述
| Lam of name * expr (* fun x - e *) (or \x - e)，推荐阅读快连下载安装获取更多信息
Blazing Speed: The 100x average improvement means route calculations, especially for longer journeys, are now dramatically faster.，这一点在safew官方版本下载中也有详细论述
组成计税价格=成本×（1+成本利润率）+消费税税额