大约有 30,000 项符合查询结果（耗时：0.0420秒） [XML]
Profiling Django
...lbar. It will show you what queries are executed on each page and how much time they take. It's a really useful, powerful and easy to use tool.
Also, read recommendations about Django performance in Database access optimization from the documentation.
And Django performance tips by
Jacob Kaplan-M...
Java exception not caught?
...
always is very long time and in very long time anything can happen (check puzzle wouter.coekaerts.be/2012/puzzle-dreams)
– Dainius
Aug 8 '13 at 6:57
...
How to read keyboard-input?
...Python 3 code example (no comments):
import threading
import queue
import time
def read_kbd_input(inputQueue):
print('Ready for keyboard input:')
while (True):
input_str = input()
inputQueue.put(input_str)
def main():
EXIT_COMMAND = "exit"
inputQueue = queue.Queue(...
How to create custom easing function with Core Animation?
...KeyframeAnimation+Parametric.h:
// this should be a function that takes a time value between
// 0.0 and 1.0 (where 0.0 is the beginning of the animation
// and 1.0 is the end) and returns a scale factor where 0.0
// would produce the starting value and 1.0 would produce the
// ending value
typ...
jQuery - multiple $(document).ready …?
... Remember seeing $(function() { // do stuff }); for the first time, and how difficult it was to Google the explanation? $(document).ready communicates so much more for so little...
– Matt Montag
Oct 15 '13 at 20:19
...
How to display gpg key details without importing it?
...blic Key Packet(tag 6)(1037 bytes)
Ver 4 - new
Public key creation time - Tue Dec 25 23:43:07 CET 2012
Pub alg - RSA Encrypt or Sign(pub 1)
RSA n(8192 bits) - ...
RSA e(17 bits) - ...
Old: User ID Packet(tag 13)(49 bytes)
User ID - Jens Erat (born 1988-01-19 in Stuttgart, Ger...
How to find memory leak in a C++ code/project?
...ndy tool with a neat integration into visual studio. I could save a lot of time using it. pointed me to the lines where I allocated memory and did not free it. Great. And it is cheap, compared with other memory leak finders I found.
– this.myself
Jan 14 '15 at ...
Why check both isset() and !empty()
...ed" is very easy to overlook. I had to scan the documentation myself a few times to spot it to post it here.
– deceze♦
Dec 30 '10 at 4:29
2
...
Casting to string in JavaScript
...
@JustusRomijn: True indeed. In the meantime, I started to use the Option type to handle such errors.
– Sammy S.
Apr 28 '14 at 8:29
...
Remove all values within one list from another list? [duplicate]
...hension(a, b):
return [x for x in a if x not in b]
5 tries, average time 12.8 sec
def filter_function(a, b):
return filter(lambda x: x not in b, a)
5 tries, average time 12.6 sec
def modification(a,b):
for x in b:
try:
a.remove(x)
except ValueError:
...