原来如此，这么说就理解了，但它的 2T 和 linode 的还是不太一样
How does my data transfer allowance work?
Any type of data transfer you consume is covered by your Lightsail plan and counted towards your data transfer allowance. As long as your instance ’ s data transfer is below the plan allowance, you do not incur any data transfer charges. Your data transfer allowance will reset every month, and you can consume it whenever you need within the month. If you delete your instance before the month ends and create another one, data transfer allowance is shared between the two instances.
看起来流出和流入都是算在 2T 里面，2T 用完了流出就要开始算钱了，linode 的流量是只算出的