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C# 通过代码安装、卸载、启动、停止服务 - .NET(C#) - 清泛IT论坛，有思想、有深度
...sp; IDictionary _SavedState = new Hashtable();
ServiceController service = new ServiceController(serviceName);
 ...
How to validate IP address in Python? [duplicate]
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Don't parse it. Just ask.
import socket
try:
socket.inet_aton(addr)
# legal
except socket.error:
# Not legal
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What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?
...an use infix with multiple parameters:
string substring (start, end) map (_ toInt) mkString ("<", ", ", ">")
Curried functions are hard to use with infix notation. The folding functions are a clear example of that:
(0 /: list) ((cnt, string) => cnt + string.size)
(list foldLeft 0) ((cnt...
Can not connect to local PostgreSQL
... the permissions on the socket file and its directories /var and /var/pgsql_socket. Your Rails app (OSX user) must have execute (x) permissions on these directories (preferably grant everyone permissions) and the socket should have full permissions (wrx). You can use ls -lAd <file> to check t...
How do I break out of a loop in Perl?
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Also, works the same for while() loops. my @array = ("_", "apple", "orange"); my $thing; while ($thing = shift @array){ last if $thing =~ /[A-Za-z]/; } print($thing); # "apple"
– HoldOffHunger
Jul 17 '18 at 19:06
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How to handle multiple heterogeneous inputs with Logstash?
...ed. I opened a ticket in Elastic and they recommended me to use tags or add_field instead of type
– BornToCode
Jun 18 '17 at 15:05
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Is MATLAB OOP slow or am I doing something wrong?
...es of functions and methods. Here are some typical results.
>> call_nops
Computer: PCWIN Release: 2009b
Calling each function/method 100000 times
nop() function: 0.02261 sec 0.23 usec per call
nop1-5() functions: 0.02182 sec 0.22 usec per call
nop() subfunct...
FFmpeg on Android
...e generated in step 1, just add a line similar to this to Android.mk: LOCAL_STATIC_LIBRARIES := libavcodec libavformat libavutil libc libz
Use the ffmpeg-wrapping dynamic library from your java sources. There's enough documentation on JNI out there, you should be fine.
Regarding using ffmpeg for p...
What type of hash does WordPress use?
...sing this encryption scheme at http://scriptserver.mainframe8.com/wordpress_password_hasher.php.
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Setting Vim whitespace preferences by filetype
...iliar with scripting vim then jump to :help 41.11, otherwise read :help usr_40 and :help usr_41.
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