大约有 40,000 项符合查询结果（耗时：0.0527秒） [XML]
Regex empty string or email
...hing an email address (that is, if you want wrong code that happens to (usually) work), use the regular-expressions.info link someone else submitted.
As for the empty string, ^$ is mentioned by multiple people and will work fine.
...
Recent file history in Vim?
...
:e #<1 opens last file, see :h c_#<.
– Hotschke
Dec 15 '15 at 16:42
...
Given two directory trees, how can I find out which files differ by content?
If I want find the differences between two directory trees, I usually just execute:
10 Answers
...
py2exe - generate single executable file
...
PyInstaller will create a single .exe file with no dependencies; use the --onefile option. It does this by packing all the needed shared libs into the executable, and unpacking them before it runs, just as you describe (EDIT: py2ex...
Virtual member call in a constructor
I'm getting a warning from ReSharper about a call to a virtual member from my objects constructor.
18 Answers
...
ImportError: No module named pip
...
After installing ez_setup, you should have easy_install available. To install pip just do:
easy_install pip
share
|
improve this answer
...
get UTC time in PHP
...i: a Unix timestamp is by definition always UTC. en.wikipedia.org/wiki/Unix_time
– nikc.org
Jul 20 '15 at 8:20
1
...
How can I read a large text file line by line using Java?
...ce the Stream in a try-with-resource block to ensure the #close method is called on it, otherwise the underlying file handle is never closed until GC does it much later.
share
|
improve this answer
...
is it possible to update UIButton title/text programmatically?
...to update the title/text of the UIButton to reflect the new state. I'm calling:
12 Answers
...
get dictionary value by key
...
It's as simple as this:
String xmlfile = Data_Array["XML_File"];
Note that if the dictionary doesn't have a key that equals "XML_File", that code will throw an exception. If you want to check first, you can use TryGetValue like this:
string xmlfile;
if (!Data_Array.T...