大约有 32,294 项符合查询结果(耗时:0.0496秒) [XML]

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How to leave/exit/deactivate a Python virtualenv

...e comments later, that workon is NOT a native virtualenv command (which is what the original question is about) but a virtualenvwrapper command! – Brandon Rhodes Jun 29 '13 at 23:42 ...
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Match all elements having class name starting with a specific string [duplicate]

...ays forget about the attribute thing (probably because it looks so ugly.) What I -still- don't understand is this: According to the W3C page: w3schools.com/cssref/css_selectors.asp the syntax is: div[class*="test"] Yet, it -seems- to work like this, with no 'element' specified: [class*="...
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Find where python is installed (if it isn't default dir)

... When I type sys in Python it says it is not defined... what is going on there? Thanks. – Spacey Oct 15 '14 at 21:32 2 ...
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Store a closure as a variable in Swift

... (Float)->Void = { arg in } due to the automatic type inference. But what you probably want is that the completion handler is initialized to nil in the same way that an Objective-C instance variable is inititialized to nil. In Swift this can be realized with an optional: var completionHandler...
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jQuery Event Keypress: Which key was pressed?

...omings and that is an unfortunate example, but for the Enter key, which is what this question is asking about, the situation is extremely simple. – Tim Down Jan 25 '11 at 12:40 ...
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Play/pause HTML 5 video using JQuery

...p. When I remove the $('#videoId').get(0).play() line there is no problem. What is the best way around this? I was thinking I could remove the js with a condtional statement for iOS - the video will not autostart for iOS devices anyway so would be happy to do this - or is there a simpler solution? A...
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Find out if ListView is scrolled to the bottom?

... I don't want to start a new question, but what do I do if my listview is stackFromBottom ? I tried if (0 == firstVisibleItem){//listviewtop} but that is getting called repeatedly. – shadyinside Jul 5 '14 at 19:22 ...
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How to hash some string with sha256 in Java?

... What's the point of bitwise &-ing a byte value with 0xff? It yields nothing, does it? – 
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':app:lintVitalRelease' error when generating signed apk

...nd turning off the lint checks, they're there for a reason. Instead, check what the error is and fix it. The error report is saved to [app module]/build/reports/lint-results-yourBuildName-fatal.html. You can open this file in a browser to read about the errors. It would be nice if Gradle could ma...
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Post-increment and pre-increment within a 'for' loop produce same output [duplicate]

... @JaminGrey what does it hurt to be in the habit of ++i unless you have a reason for i++? – Azendale Jan 22 '15 at 4:04 ...