Teaching Computer Organization this semester has been painfully difficult: outdated textbooks, fragmented course structure, and no real path toward building a system view. A computer should be clear and organic, yet it is often taught as a loose collection of terms.
The last time I tinkered with my blog was back in 2019. In the blink of an eye, several years have passed, during which I wrote almost nothing aside from the occasional system fix or a few notes. Part of it was laziness, and the other part… well, honestly, still laziness. It wasn’t until recently—thanks to the “cost-optimization” of my VPS—that I began what was supposed to be a large-scale migration.
No English version provided.
前幾天，我在攜程網上預訂了一張蘭州到青島的機票。因爲行程有變，需要改期。當我打開訂單頁面，發現「退改說明」是這樣寫的：
套餐更改：起飛前2小時之前的改期手續費按旅行套餐價收取50%，起飛前2小時（含）以內及起飛後的收取70%；
套餐退訂：起飛前2小時之前的套餐退訂手續費按旅行套餐價收取80%，起飛前2小時（含）以內和起飛後不支持套餐退訂。