大约有 4,000 项符合查询结果（耗时：0.0150秒） [XML]
Split a string at uppercase letters
...er, before doing the split":
>>> s = "TheLongAndWindingRoad ABC A123B45"
>>> re.sub( r"([A-Z])", r" \1", s).split()
['The', 'Long', 'And', 'Winding', 'Road', 'A', 'B', 'C', 'A123', 'B45']
This has the advantage of preserving all non-whitespace characters, which most other soluti...
Printing the correct number of decimal points with cout
...lt;iomanip>
int main(int argc, char** argv)
{
float testme[] = { 0.12345, 1.2345, 12.345, 123.45, 1234.5, 12345 };
std::cout << std::setprecision(2) << std::fixed;
for(int i = 0; i < 6; ++i)
{
std::cout << testme[i] << std::endl;
}
re...
How do I make calls to a REST api using C#?
...domain.com/objects.json";
private string urlParameters = "?api_key=123";
static void Main(string[] args)
{
HttpClient client = new HttpClient();
client.BaseAddress = new Uri(URL);
// Add an Accept header for JSON format.
clien...
Why would a JavaScript variable start with a dollar sign? [duplicate]
...
@yoyo_fun: Code that is generated by a computer rather than written by a human.
– cic
Apr 28 '16 at 14:11
1
...
Is !important bad for performance?
...
I know... I'm just making fun of how extremely picky people do get when it comes to performance, by taking that pickiness to the next level.
– BoltClock♦
Dec 6 '12 at 12:45
...
Checking if a variable is an integer
...cob Relkin
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...
How to get parameters from a URL string?
... the variables into an associative array.
$url = "https://mysite.com/test/1234?email=xyz4@test.com&testin=123";
$query_str = parse_url($url, PHP_URL_QUERY);
parse_str($query_str, $query_params);
print_r($query_params);
//Output: Array ( [email] => xyz4@test.com [testin] => 123 )
...
Swapping column values in MySQL
...
Ok, so just for fun, you could do this! (assuming you're swapping string values)
mysql> select * from swapper;
+------+------+
| foo | bar |
+------+------+
| 6 | 1 |
| 5 | 2 |
| 4 | 3 |
+------+------+
3 rows in s...
How to identify numpy types in python?
...
Use the builtin type function to get the type, then you can use the __module__ property to find out where it was defined:
>>> import numpy as np
a = np.array([1, 2, 3])
>>> type(a)
<type 'numpy.ndarray'>
>>> type...
Check if a string has white space
...space1').html(hasWhiteSpace(' '));
$('#whitespace2').html(hasWhiteSpace('123'));
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
" ": <span id="whitespace1"></span><br>
"123": <span id="whitespace2"></span>
...