大约有 39,000 项符合查询结果（耗时：0.0852秒） [XML]
How to normalize a NumPy array to within a certain range?
...
7 Answers
7
Active
...
How to convert a byte array to a hex string in Java?
...nprintable elements. What I need is the exact hexcode in the form of: 3a5f771c
27 Answers
...
When to use std::begin and std::end instead of container specific versions [duplicate]
...for arrays.
– Jon
Feb 26 '13 at 23:47
I think, you don't have to spell out using std::begin, the argument dependent lo...
How do I read the contents of a Node.js stream into a string variable?
...
answered May 16 '12 at 17:51
ControlAltDelControlAltDel
26.8k55 gold badges3939 silver badges6666 bronze badges
...
Ruby on Rails: how do I sort with two columns using ActiveRecord?
...
7 Answers
7
Active
...
How can I fill out a Python string with spaces?
...
731
You can do this with str.ljust(width[, fillchar]):
Return the string left justified in a s...
CRON job to run on the last day of the month
...o three separate jobs:
55 23 30 4,6,9,11 * myjob.sh
55 23 31 1,3,5,7,8,10,12 * myjob.sh
55 23 28 2 * myjob.sh
That will run on the 28th of February though, even on leap years so, if that's a problem, you'll need to find another way.
However, it's usually both substantially...
How to use mongoimport to import csv
...
Your example worked for me with MongoDB 1.6.3 and 1.7.3. Example below was for 1.7.3. Are you using an older version of MongoDB?
$ cat > locations.csv
Name,Address,City,State,ZIP
Jane Doe,123 Main St,Whereverville,CA,90210
John Doe,555 Broadway Ave,New York,NY,10010
ctrl-...
iPhone UITextField - Change placeholder text color
...nswered Dec 4 '12 at 3:08
user1071136user1071136
15.2k22 gold badges3434 silver badges5959 bronze badges
...