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中文网（自研/维护）拓展 · App Inventor 2 中文网
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ConnectionState
Method that returns the connection state
HexaStringMode
Method to specify the mode (string or hexastring)
SeqNewLine
Method that returns a string containing “\n” sequence
SeqNewLineAndRet
Method that returns a string containing “\n\r” sequence
SeqRet...
What is the most pythonic way to check if an object is a number?
...vector or a number is comparing apples to oranges - I can have a vector of strings or numbers, and I can have a single string or single number. You are interested in how many you have (1 or more), not what type you actually have.
my solution for this problem is to check whether the input is a singl...
Capturing URL parameters in request.GET
...d pass them to the view function along with the request object.
The query string (here message=Hi) is parsed and parameters are stored as a QueryDict in request.GET. No further matching or processing for HTTP GET parameters is done.
This view function would use both parts extracted from the URL pa...
Hex transparency in colors [duplicate]
...alpha
* @param alpha from 0.0 to 1.0
* @return
*/
public static String addAlpha(String originalColor, double alpha) {
long alphaFixed = Math.round(alpha * 255);
String alphaHex = Long.toHexString(alphaFixed);
if (alphaHex.length() == 1) {
alphaHex = "0" + alphaHex;
...
Android Webview - Completely Clear the Cache
... }
}
catch(Exception e) {
Log.e(TAG, String.format("Failed to clean the cache, error %s", e.getMessage()));
}
}
return deletedFiles;
}
/*
* Delete the files older than numDays days from the application cache
* 0 means all files.
*/
public sta...
Strtotime() doesn't work with dd/mm/YYYY format
... str_replace mentioned in another answer, as well as self-parsing the date string into another format like
$subject = '23/05/2010';
$formatted = vsprintf('%3$04d/%2$02d/%1$02d', sscanf($subject,'%02d/%02d/%04d'));
$timestamp = strtotime($formatted);
...
社会化海量数据采集爬虫框架搭建 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...ache.commons.httpclient.methods.GetMethod;
import org.apache.commons.lang.StringUtils;
public class HttpCrawler {
public static void main(String[] args) {
String content = null ;
try {
HttpClient httpClient = new HttpClient();
...
Design Patterns: Factory vs Factory method vs Abstract Factory
...f factories like below
ComputerTypeAbstractFactory.getComputerPartFactory(String computerType) ---> This will return PartFactory which can be one of these ServerPartFactory, LaptopPartFactory, DesktopPartFactory.
Now these 3 itself are again factories. (You will be dealing with PartFactory its...
How can I iterate over files in a given directory?
...).glob('**/*.asm')
for path in pathlist:
# because path is object not string
path_in_str = str(path)
# print(path_in_str)
Use rglob to replace glob('**/*.asm') with rglob('*.asm')
This is like calling Path.glob() with '**/' added in front of the given relative pattern:
from path...
Check if object exists in JavaScript
...typeof will return something other than undefined. typeof always returns a string.
Therefore
if (typeof maybeObject != "undefined") {
alert("GOT THERE");
}
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