大约有 2,500 项符合查询结果（耗时：0.0226秒） [XML]
How to download and save a file from Internet using Java?
... that copyURLToFile with timeout parameter is only available since version 2.0 of Commons IO library. See Java docs
– Stanley
Apr 12 '13 at 4:00
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Android emulator shows nothing except black screen and adb devices shows “device offline”
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Host GPU needs to be on for me on Ubuntu 12.04 and android sdk 19
– Johan Bjäreholt
Mar 20 '14 at 18:31
2
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How efficient is locking an unlocked mutex? What is the cost of a mutex?
...ens often, then multiple locks would increase parallelism. At the cost of maintainability, since more locking means more debugging of the locking.
How efficient is it to lock a mutex? I.e. how much assembler instructions are there likely and how much time do they take (in the case that the mutex...
Best way to require all files from a directory in ruby?
...nce or absence of the .rb extension. Tested on MRI 1.8.7-p374, 2.1.5 and 2.2.0 tested. This urban legend comes from Rails, where "clever" autoloading exhibited the behaviour he describes in older versions (and may still exhibit it).
– sheldonh
Feb 25 '15 at 7:3...
Django optional url parameters
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Django > 2.0 version:
The approach is essentially identical with the one given in Yuji 'Tomita' Tomita's Answer. Affected, however, is the syntax:
# URLconf
...
urlpatterns = [
path(
'project_config/<product>/',
...
What is the GAC in .NET?
...AM <DIR> ..
04/11/2009 12:20 PM <DIR> 2.0.0.0__b77a5c561934e089
0 File(s) 0 bytes
3 Dir(s) 90,538,311,680 bytes free
C:\Windows\assembly\GAC_64\System.Data>cd 2.0.0.0__b77a5c561934e089
C:\Windows\assembly\GAC_64\Sy...
How to install Boost on Ubuntu
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Some things such as PO Edit 2.0 require boost 1.6, which is not available at this time via apt-get you can get this from boost.org/users/history/version_1_60_0.html and then expand it. Follow the excellent instructions above, remembering that LD Lib...
How can I sharpen an image in OpenCV?
...hoise amount is simply the amount of sharpening. For example, an amount of 2.0 gives a sharper image compared to the default value of 1.0. threshold is the threshold for the low-contrast mask. In other words, the pixels for which the difference between the input and blurred images is less than thres...
How to resize an image to fit in the browser window?
...S only solution (JSFiddle), works everywhere, mobile and IE included:
CSS 2.0:
html, body {
height: 100%;
margin: 0;
padding: 0;
}
img {
padding: 0;
display: block;
margin: 0 auto;
max-height: 100%;
max-width: 100%;
}
HTML:
<body>
<img src="images/you...
Where do I use delegates? [closed]
...
@Pacerier anonymous method introduced in C# 2.0 and Lambda introduced in C# 3.0 if Lambda introduced first,there never would have been anonymous methods and even delegate!
– AminM
Jun 22 '17 at 21:18
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