大约有 48,000 项符合查询结果（耗时：0.0333秒） [XML]
Finding local IP addresses using Python's stdlib
How can I find local IP addresses (i.e. 192.168.x.x or 10.0.x.x) in Python platform independently and using only the standard library?
...
Regular expression to match numbers with or without commas and decimals in text
...ure the whole thing wasn't blank.
Tested here: http://rextester.com/YPG96786
This will allow things like:
100,000
999.999
90.0009
1,000,023.999
0.111
.111
0
It will block things like:
1,1,1.111
000,001.111
999.
0.
111.110000
1.1.1.111
9.909,888
There are several ways to make this regex simpler an...
How does Duff's device work?
...int count; // Set to 20
{
int n = (count + 7) / 8; // n is now 3. (The "while" is going
// to be run three times.)
switch (count % 8) { // The remainder is 4 (20 modulo 8) so
...
Find the max of two or more columns with pandas
...
185
You can get the maximum like this:
>>> import pandas as pd
>>> df = pd.DataF...
Parsing JSON array into java.util.List with Gson
...|
edited Jun 27 '17 at 9:48
answered Aug 31 '13 at 11:32
Mi...
Checking network connection
... urllib2
def internet_on():
try:
urllib2.urlopen('http://216.58.192.142', timeout=1)
return True
except urllib2.URLError as err:
return False
Currently, 216.58.192.142 is one of the IP addresses for google.com. Change http://216.58.192.142 to whatever site can be ...
How to test valid UUID/GUID?
...haracter of the third block).
Therefore to validate a UUID...
/^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/i
...ensures you have a canonically formatted UUID that is Version 1 through 5 and is the appropriate Variant as per RFC4122.
NOTE: Braces { and } are not ca...
Delete topic in Kafka 0.8.1.1
I need to delete the topic test in Apache Kafka 0.8.1.1.
14 Answers
14
...
Generate unique random numbers between 1 and 100
...
For example: To generate 8 unique random numbers and store them to an array, you can simply do this:
var arr = [];
while(arr.length < 8){
var r = Math.floor(Math.random() * 100) + 1;
if(arr.indexOf(r) === -1) arr.push(r);
}
conso...
Why does [5,6,8,7][1,2] = 8 in JavaScript?
...
388
[1,2,3,4,5,6][1,2,3];
^ ^
| |
array + — array subscript...