大约有 15,000 项符合查询结果（耗时：0.0420秒） [XML]
Who is listening on a given TCP port on Mac OS X?
On Linux, I can use netstat -pntl | grep $PORT or fuser -n tcp $PORT to find out which process (PID) is listening on the specified TCP port. How do I get the same information on Mac OS X?
...
Python multiprocessing pool.map for multiple arguments
...of Python, you'll need to write a helper function to unpack the arguments explicitly. If you want to use with, you'll also need to write a wrapper to turn Pool into a context manager. (Thanks to muon for pointing this out.)
import multiprocessing
from itertools import product
from contextlib import...
Visual Studio can't build due to rc.exe
...ound this on Google... I would assume that in your case you would copy rc.exe and rcdll.dll to visual studio 2012\vc\bin or wherever you have it installed:
Part 2: FIX LINK : fatal error LNK1158: cannot run ‘rc.exe’
Add this to your PATH environment variables:
C:\Program Files (x86)\Win...
Using property() on classmethods
...ect):
... _var = 5
... class __metaclass__(type): # Python 2 syntax for metaclasses
... pass
... @classmethod
... def getvar(cls):
... return cls._var
... @classmethod
... def setvar(cls, value):
... cls._var = value
...
>>> foo.__metacl...
jQuery: Return data after ajax call success [duplicate]
... can pass in a callback function that handles the result:
function testAjax(handleData) {
$.ajax({
url:"getvalue.php",
success:function(data) {
handleData(data);
}
});
}
Call it like this:
testAjax(function(output){
// here you use the output
});
// Note: the call won'...
Days between two dates? [duplicate]
...s assumed "days" refers to just the day portion of the difference. So for example difference between 2010 and 2011 would be 0 days and 1 year, but turns out it does report 365 days as I wanted.
– Bemmu
Nov 25 '11 at 10:03
...
How to avoid overflow in expr. A * B - C * D
I need to compute an expression which looks like:
A*B - C*D , where their types are: signed long long int A, B, C, D;
Each number can be really big (not overflowing its type). While A*B could cause overflow, at same time expression A*B - C*D can be really small. How can I compute it correctly...
iPhone: How to switch tabs with an animation?
...ally in a tab bar driven application using UITabBarController.selectedIndex . The problem I'm trying to solve is how to animate the transition between the views. ie. from the view of the current tab to the view of the selected tab.
...
Validating email addresses using jQuery and regex
...not too sure how to do this. I need to validate email addresses using regex with something like this:
10 Answers
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Update statement with inner join on Oracle
...
That syntax isn't valid in Oracle. You can do this:
UPDATE table1 SET table1.value = (SELECT table2.CODE
FROM table2
WHERE table1.value = table2.DESC)
WHERE table1....