大约有 18,900 项符合查询结果(耗时:0.0399秒) [XML]

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Unique fields that allow nulls in Django

... This is fixed now that https://code.djangoproject.com/ticket/4136 is resolved. In Django 1.11+ you can use models.CharField(unique=True, null=True, blank=True) without having to manually convert blank values to None. ...
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NSURLRequest setting the HTTP header

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Is it pythonic to import inside functions?

...ner, and also works 4.5 times faster than an import statement! Benchmark: https://gist.github.com/kolypto/589e84fbcfb6312532658df2fabdb796 share | improve this answer | foll...
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Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…

... I don't know why nobody mention Carbon yet. https://github.com/briannesbitt/Carbon This is actually an extension to php dateTime (which was already used here) and it has: diffForHumans method. So all you need to do is: $dt = Carbon::parse('2012-9-5 23:26:11.123789');...
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What's the best way to set a single pixel in an HTML5 canvas?

... the speed of these here: http://jsperf.com/setting-canvas-pixel/9 or here https://www.measurethat.net/Benchmarks/Show/1664/1 I recommend testing against browsers you care about for maximum speed. As of July 2017, fillRect() is 5-6× faster on Firefox v54 and Chrome v59 (Win7x64). Other, sillier ...
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Ignoring accented letters in string comparison

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Issue with adding common code as git submodule: “already exists in the index”

..." git rm --cached c3-pro-ios-framework Add submodule git submodule add https://github.com/chb/c3-pro-ios-framework.git share | improve this answer | follow ...
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Relative paths based on file location instead of current working directory [duplicate]

....g., HP-UX (thanks, @Charles Duffy). The following solution, inspired by https://stackoverflow.com/a/1116890/45375, defines helper shell function, rreadlink(), which resolves a given symlink to its ultimate target in a loop - this function is in effect a POSIX-compliant implementation of GNU readl...
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How do I reset the scale/zoom of a web app on an orientation change on the iPhone?

...is solution is very responsive and does not interfere with zoom gestures. https://github.com/scottjehl/iOS-Orientationchange-Fix How it works: This fix works by listening to the device's accelerometer to predict when an orientation change is about to occur. When it deems an orientation chan...
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What does it mean to inflate a view from an xml file?

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