大约有 5,550 项符合查询结果（耗时：0.0284秒） [XML]
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
....current_url
respcls = responsetypes.from_args(url=url, body=body[:100].encode('utf8'))
resp = respcls(url=url, body=body, encoding="utf-8")
response_failed = getattr(spider, "response_failed", None)
if response_failed and callable(response_failed) and response_faile...
Compiled vs. Interpreted Languages
...
100
A language itself is neither compiled nor interpreted, only a specific implementation of a lan...
Nginx no-www to www and www to no-www
...lieve me, the best nginx server) no need to upgrade or update. Works fine. 100,000 unique hits a day with 4200 transactions average a day. Nginx is RAPID. like using a site with no traffic.
– TheBlackBenzKid
Nov 30 '11 at 18:11
...
Transactions in REST?
...ount/john</from>
<to>/account/bob</to>
<amount>100</amount>
</transaction>
If a transaction with ID "1234" has been PUT before, the server gives an error response, otherwise an OK response and a URL to view the completed transaction.
NB: in /account/john , ...
Difference between __str__ and __repr__?
...
+100
Alex summarized well but, surprisingly, was too succinct.
First, let me reiterate the main points in Alex’s post:
The default i...
Design patterns or best practices for shell scripts [closed]
...
Easy:
use python instead of shell scripts.
You get a near 100 fold increase in readablility, without having to complicate anything you don't need, and preserving the ability to evolve parts of your script into functions, objects, persistent objects (zodb), distributed objects (pyro)...
How to write the Fibonacci Sequence?
...owError when n is slightly above 600. Other approaches can handle an n of 1000 or more without blowing up or losing precision.
– cdlane
Sep 4 '17 at 20:54
...
memory_get_peak_usage() with “real usage”
...$percentage = (($memoryUsed + $stat['HIGHEST_DIFF']) / $memoryAvailable) * 100;
// var_dump($percentage, $memoryDiff);
// Stop your scipt
if ($percentage > $peekPoint) {
print(sprintf("Stoped at: %0.2f", $percentage) . "%\n");
$stat['AVERAGE'] = array_sum($stat['AVE...
Sending files using POST with HttpURLConnection
...nn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(10000);
conn.setConnectTimeout(15000);
conn.setRequestMethod("POST");
conn.setUseCaches(false);
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setRequestProperty("Connecti...
How do I modify fields inside the new PostgreSQL JSON datatype?
...the end of the array:
SELECT jsonb_set('{"a":[null,{"b":[1,2]}]}', '{a,1,b,1000}', jsonb '3', true)
-- will yield jsonb '{"a":[null,{"b":[1,2,3]}]}'
For inserting into JSON array (while preserving all of the original values), the jsonb_insert() function can be used (in 9.6+; this function only, in ...