大约有 40,000 项符合查询结果（耗时：0.0602秒） [XML]
How to create nonexistent subdirectories recursively using Bash?
I am creating a quick backup script that will dump some databases into a nice/neat directory structure and I realized that I need to test to make sure that the directories exist before I create them. The code I have works, but it seems that there is a better way to do it. Any suggestions?
...
How to remove leading and trailing whitespace in a MySQL field?
...
You're looking for TRIM.
UPDATE FOO set FIELD2 = TRIM(FIELD2);
share
|
improve this answer
|
follow
...
Where can I find the error logs of nginx, using FastCGI and Django?
...
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Nov 10 '09 at 11:30
syavasyava
...
What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...
Unslander Monica
82.5k1010 gold badges117117 silver badges253253 bronze badges
answered Sep 2 '09 at 16:23
Stu MackellarSt...
Format / Suppress Scientific Notation from Python Pandas Aggregation Results
...
Granted, the answer I linked in the comments is not very helpful. You can specify your own string converter like so.
In [25]: pd.set_option('display.float_format', lambda x: '%.3f' % x)
In [28]: Series(np.random.randn(3))*1000000000
Out[28]:
0 ...
How to add extra namespaces to Razor pages instead of @using declaration?
...
Update: please take a look at my updated answer that applies to MVC 3 RC: Razor HtmlHelper Extensions (or other namespaces for views) Not Found
This has changed between MVC 3 Preview 1 and MVC 3 Beta (released just today). In Preview 1 Razor...
How Big can a Python List Get?
... answered May 12 '09 at 23:48
UnknownUnknown
41.9k2424 gold badges128128 silver badges172172 bronze badges
...
PostgreSQL delete with inner join
...
OmeshOmesh
23.2k66 gold badges3636 silver badges4848 bronze badges
...
How do I pass command-line arguments to a WinForms application?
...
static void Main(string[] args)
{
// For the sake of this example, we're just printing the arguments to the console.
for (int i = 0; i < args.Length; i++) {
Console.WriteLine("args[{0}] == {1}", i, args[i]);
}
}
The arguments will then be stored in the args s...
Sorting an ArrayList of objects using a custom sorting order
I am looking to implement a sort feature for my address book application.
11 Answers
1...