Baidu said that there is a problem with the verification method in the file var lib pgsql 9.5 data pg_hba.conf, but the reason for changing the verification method is to use the command psql-U postgres-d mydjango-p 5432-h 127.0.0.1 to log in directl...
1. Condition: according to whether the alias in the two lines intersect, and if so, Then merge separated by-sharp sign, where: alias 2 in alias separated by-sharp sign, data name alias 0 potato potato-sharp egg-sharp potato-sharp potato 1 potato p...
blog s article like function, like once + 1, use session to record the current user problem point is: if you like article 1, article 2 will indicate that it has been supported. The reason is to judge that session how to realize that articles cannot b...
as in the title, write a simple function test to generate a soup object from the URL using Python requests and BeautifulSoup, (see the example below). If you call this function directly in the main thread, everything will be fine, but if you call this f...
the article on Wechat s official account crawled through python at the backend found that the video in the article could not be played, and the video was nested in iframe, as shown in <iframe class="video_iframe" data-vidtype="2"...
python replaces the content in front of the vertical bar symbol in the title, but it has been unsuccessful, for example: Chen Ning column (Chinese football fight to correct the name of Wales Uruguay for the championship, replace Chen Ning column for oth...
when we use the ansible tool, the default is to use ssh for remote control. you need to generate key pairs in a way similar to ssh-keygen-t rsa , and then use the ssh-copy-id command to distribute the public key file to a remote host and enter the pas...
{% csrf_token%}, is added to the form form of html in the template. MIDDLEWARE = [ django.middleware.security.SecurityMiddleware , django.contrib.sessions.middleware.SessionMiddleware , django.middleware.common.CommonMiddleware , ...
this problem works fine after I add code to the first line, but do I have to pay attention to this every time? Python novice asks ...
I want the program to randomly issue five cards with different colors and numbers (it doesn t matter if there are occasional cards with the same number), but I find that five cards are always the same. import random suites = [ "Hearts ", "Diamonds ...
for example, the known two-dimensional list [[aformab], [dpene], [f]] requires an element from each sublist to be added and lists all the combinations. The output of this question is adf,aef,bdf,bef,cdf,cef. There are many such lists, and the number of s...
description: a regular match is given to the content of an input box, and the matching content is the product activation code. looks like this: "0C31-0B81-BB32-3094-0C31-0B81-BB32-3094 " Code: $( -sharplicenseCode ).keyup(function () { le...
dict1 = { "system.cpu.user.pct": { "value": 12.83 }, "system.load.1": { "value": 0.33 } } dict2 = { "system": { "...
for example: $str = 123123 ; preg_match_all( ( d*) , $str, $arr); var_dump($arr); or: exec("date", $output); var_dump($output); this is not declared $output , and can be output as $arr ? What is the reason for this? add <?p...
github link: https: github.com hpstream n. <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title< title> <style type="text css"> html, ...
the command could not be found using sentry installed by Docker? The project can already be seen through localhost, but there is no such command, why? ...
the packaged webpack code works fine in the chorme test. But in ie and Firefox will inexplicably appear and chorme behavior. There is a problem when I set an element to opacity:0;transition:all 1s; then a trigger behavior becomes opacity:1;ie and Firefo...
When I implemented a spider using Scrapy, I wanted to change the proxy of it so that the server wouldn t forbid my request according to the frequent requests from an ip. I also knew how to change the proxy with Scrapy, using middlewares or directly cha...