大约有 4,527 项符合查询结果(耗时:0.0292秒) [XML]

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Check if an image is loaded (no errors) with jQuery

... Ugg, you're right. Chrome is definitely the most annoying browser to develop for. On the bright, I think I may have found a work around: set the image source to "" then back to the original source. I'll update my answer. – Xavi D...
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How can I output the value of an enum class in C++11

... #include <iostream> #include <type_traits> using namespace std; enum class A { a = 1, b = 69, c= 666 }; std::ostream& operator << (std::ostream& os, const A& obj) { os << static_cast<std::...
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What is __init__.py for?

...answered Nov 7 '10 at 3:31 caritoscaritos 9,21622 gold badges1414 silver badges1515 bronze badges ...
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Can two applications listen to the same port?

... The answer differs depending on what OS is being considered. In general though: For TCP, no. You can only have one application listening on the same port at one time. Now if you had 2 network cards, you could have one application listen on the first IP and the ...
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Why does the order of the loops affect performance when iterating over a 2D array?

Below are two programs that are almost identical except that I switched the i and j variables around. They both run in different amounts of time. Could someone explain why this happens? ...
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Set Locale programmatically

...the changes to take effect. EDIT 11th MAY 2018 As from @CookieMonster's post, you might have problems keeping the locale change in higher API versions. If so, add the following code to your Base Activity so that you update the context locale on every Activity creation: @Override protected void at...
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Reliable method to get machine's MAC address in C#

I need a way to get a machine's MAC address regardless of the OS it is running using C#. Application will need to work on XP/Vista/Win7 32 and 64 bit as well as on those OSs but with a foreign language default. Many of the C# commands and OS queries don't work across OS. Any ideas? I have been s...
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Difference between static and shared libraries?

... Shared libraries are .so (or in Windows .dll, or in OS X .dylib) files. All the code relating to the library is in this file, and it is referenced by programs using it at run-time. A program using a shared library only makes reference to the code that it uses in the shared lib...
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What is a faster alternative to Python's http.server (or SimpleHTTPServer)?

... Windows you'll need a prompt with administrator permissions, and on Linux/OSX you'll want to sudo the command: npm install http-server -g This will download any required dependencies and install http-server. Use Now, from any directory, you can type: http-server [path] [options] Path is optional,...
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GLib compile error (ffi.h), but libffi is installed

... If you have a Debian-based Linux OS with apt-get: sudo apt-get install libffi-dev With a Redhat-base OS: yum install libffi-devel With Alpine Linux: apk add libffi-dev share ...