怎么算白羊的上升星座:跨境电商英文客服邮件回复模板(二)

跨境电商英文客服邮件回复模板(二)

所谓打铁要趁热,省力又省心的英文模板也是不能停,这样的好评请给我多来点遇到客人对快递的具体送货时间有要求 (客人怕工作日没人收快递)Hi____,like a neighbor or somewhere at your property.Hope my explanation is able to assist you. Kind RegardsStefan客人要求取消订单Hi____,Thanks for contacting us and sorry for keeping you waiting.Your order has been cancelled and refund already. Wish you can purchase any items from us next time.Have a good day.Kind RegardsStefan产品缺货导致订单不能发 (绝对不能跟客人提到缺货)Hi____,the warehouse found that it was the last one in stock and checked a small problem on it. That's why we decide not to send it to you. The stock is hard to restore in a short time as well.So your order has been cancelled and refunded.Sincerely apologise. Please forgive us on this issue.Kind RegardsStefan客人说已退货但没提供具体退货信息Hi____,

Promise then中回调为什么是异步执行?

《你不知道的JavaScript》解释过这个问题:getify/You-Dont-Know-JS下面说说我阅读后的理解:mgc.then(a => a) 的效果实际上是 return new Promise(resolve => resolve(a)),这个过程由引擎隐式完成。都用作先进先出队列相异点:但只有一个 Event Loop Queue当 JavaScript Engine 处理完当前事件队列中的代码后,再执行本次任务中所有的 Job Queue,然后再处理 Event Loop Queue(下一次事件循环任务)ES6 中,原因在于回调是可以有副作用的。回调同步执行:n});nn// first first firstn// lastn回调异步执行:setTimeout(function () {n console.log('last')n},1000);nnconsole.log('first');nn// firstn// lastn一件有副作用的事情,如果放在多线程环境下,就构成了竞态条件。而回调(例如 then 中的)如果可能同步、也可能异步,执行顺序就变成了不确定的,也就类似多线程中的竞态条件。为了避免这种不确定性,then 的回调总是作为 Job Queue 中的下一个 Job 执行(异步执行)。Promise 的设计还是为了解决以下情形导致的不确定性:

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