大约有 47,000 项符合查询结果（耗时：0.0645秒） [XML]
Adding a parameter to the URL with JavaScript
...
4
I am calling this function and the page is reloading in infinite loop. Please help!
– sumit
Jul 24 '1...
How to use sed to replace only the first occurrence in a file?
...
144
# sed script to change "foo" to "bar" only on the first occurrence
1{x;s/^/first/;x;}
1,/foo...
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al
...
unutbuunutbu
665k138138 gold badges14831483 silver badges14721472 bronze badges
...
Draw a perfect circle from user's touch
...
answered Sep 28 '13 at 21:43
Renat GilmanovRenat Gilmanov
16.8k55 gold badges3535 silver badges5454 bronze badges
...
Logging best practices [closed]
...rown away and completely replaced like some popular alternatives (NLog, log4net, Common.Logging, and even EntLib Logging).
Rather than change the way you add logging statements to your application and re-inventing the wheel, just extended the System.Diagnostics framework in the few places you need ...
What is Common Gateway Interface (CGI)?
...
431
CGI is an interface which tells the webserver how to pass data to and from an application. Mo...
TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...
246
I ran into this same problem myself. This is caused by a quirk in how transactions are handled ...
ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...
Charlie
6,5234545 silver badges5050 bronze badges
answered Apr 22 '14 at 18:58
Chris CiszakChris Ciszak
...
Differences between Exception and Error
...
answered May 26 '09 at 19:43
EddieEddie
50k2020 gold badges114114 silver badges140140 bronze badges
...
Should I use multiplication or division?
...
Python:
time python -c 'for i in xrange(int(1e8)): t=12341234234.234 / 2.0'
real 0m26.676s
user 0m25.154s
sys 0m0.076s
time python -c 'for i in xrange(int(1e8)): t=12341234234.234 * 0.5'
real 0m17.932s
user 0m16.481s
sys 0m0.048s
multiplication is 33% faster...