Is it necessary for txt = fo.read (2) before while to appear? Why not connect to while, directly after fo = open (fname, "r ") how to understand the logic in this? ... txt = fo.read(2) while txt != "": txt = fo read(2) ... ...
for example, I have such a file storage app public report 1 14.pdf, in the laravel project through the php artisan storage:link command, which can be accessed directly using http: domain storage report ., but because of the particularity of this pdf,...
search the database, the query cannot be done, and the query result is empty. We know that the string format is ASCII-encoded through mb_detect_encoding, probably because it cannot be queried in this way. How to convert the ASCII-encoded string into ...
eventloop about ndejs see a picture like this? means that you don t understand what it means, and it is divided into different stages . nodejs: the second and third pictures probably understand what eventloop does, but I was confused when I saw...
about fetch, asyncdata, and nuxtserverInit in nuxtjs, these three methods are all about asynchronous data server rendering on the Nuxtjs official website. I don t quite understand the specific usage scenarios on the official website, that is, which o...
if you want to make a server-rendered page, you only need to provide data at the backend, and the frontend uses vue to make a single page (for simple pages, only use < script > < script > to introduce vue.js, without frontend routing). when directl...
beginner to learn node, I think the process of puppeteer crawling shows how to achieve it on the web page. Ask the Great God to give me an idea ...