大约有 43,000 项符合查询结果(耗时:0.0796秒) [XML]
Checking for empty queryset in Django
...uerySet anyway it's better to use:
if orgs:
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For more information read QuerySet.exists() documentation.
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Why shouldn't `'` be used to escape single quotes?
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@Richardakacyberkiwi Read the question all the way to the end.
– ColBeseder
Aug 29 '12 at 8:38
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How to stop C++ console application from exiting immediately?
...oes not solve the problem - or only in limited circumstances, at least. It reads a char from stdin, but if there are already characters buffered from stdin the program will carry on without waiting regardless of whether you print a prompt or not.
– CB Bailey
Ma...
Is there a short cut for going back to the beginning of a file by vi editor?
When reading a long file by vi editor, it would be very nice to get back to the beginning of the file by some short cuts when you really need to do so. Even ctrl + B sometimes is too slow. Does anyone know such a tool?
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How to check if a string starts with one of several prefixes?
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Besides the solutions presented already, you could use the Apache Commons Lang library:
if(StringUtils.startsWithAny(newStr4, new String[] {"Mon","Tues",...})) {
//whatever
}
Update: the introduction of varargs at some point makes the call simpler now:
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Get absolute path of initially run script
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This solution works but it's worth mentioning that, reading the documentation, there is no mention that the initially run script's path is the first item of the array returned by get_included_files(). I suggest to store __FILE__ into a constant at the beginning of the script m...
How to generate javadoc comments in Android Studio
...d press Enter, the javadoc comment block will be generated automatically.
Read this for more information.
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How to send a GET request from PHP?
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As already mentioned, curl is much faster than file_get_contents(). A simple 4 letter string took about 10 seconds with it, while curl took a more reasonable ~1 second max.
– Peter Gordon
Jun...
How do I cancel a build that is in progress in Visual Studio?
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Did this 3 seconds before I read this. I would just add MSBuild to the kill bill script above
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In Eclipse, what can cause Package Explorer “red-x” error-icon when all Java sources compile without
...http://www.freeimagehosting.net/uploads/a824304b18.png
It was the hint of reading the "Problems" tab :-) that turned me into the right direction, so I'm selecting that answer as the accepted answer because this is what I needed:
Snapshot from Problems tab http://www.freeimagehosting.net/uploads/de...