大约有 42,000 项符合查询结果(耗时:0.1104秒) [XML]

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Memcached vs APC which one should I choose? [closed]

...choose the best thing out there. In that article it says Memcached is slow and apc is fast so why is everyone choosing memcached ? ...
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Can I bind an array to an IN() condition?

...right. fixed the code (didn't test it though) edit: both chris (comments) and somebodyisintrouble suggested that the foreach-loop ... (...) // bindvalue is 1-indexed, so $k+1 foreach ($ids as $k => $id) $stmt->bindValue(($k+1), $id); $stmt->execute(); ... might be redundant, so the...
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Is it expensive to use try-catch blocks even if an exception is never thrown?

...rown, it now does a relatively expensive operation of walking up the stack and seeing if any try blocks exist that would catch this exception. From a layman's perspective, try may as well be free. It's actually throwing the exception that costs you - but unless you're throwing hundreds or thousands ...
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Call An Asynchronous Javascript Function Synchronously

...it an asynchronous call into a very synchronous codebase that is many thousands of lines long and time doesn't currently afford the ability to make the changes to "do it right." It hurts every fiber of my being, but reality and ideals often do not mesh. I know this sucks. ...
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Regex to replace multiple spaces with a single space

... string.replace(/\s\s+/g, ' '); If you really want to cover only spaces (and thus not tabs, newlines, etc), do so: string = string.replace(/ +/g, ' '); share | improve this answer | ...
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“Inner exception” (with traceback) in Python?

My background is in C# and I've just recently started programming in Python. When an exception is thrown I typically want to wrap it in another exception that adds more information, while still showing the full stack trace. It's quite easy in C#, but how do I do it in Python? ...
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Distinct not working with LINQ to Objects

...t smart when it comes to custom objects. All it does is look at your list and see that it has two different objects (it doesn't care that they have the same values for the member fields). One workaround is to implement the IEquatable interface as shown here. If you modify your Author class like s...
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Segue to another storyboard?

...ard? I need to place a UITabBarController in a UINavigationController , and I'd like to keep them nice and separate. 6 A...
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How do I properly force a Git push?

I've set up a remote non-bare "main" repo and cloned it to my computer. I made some local changes, updated my local repository, and pushed the changes back to my remote repo. Things were fine up to that point. ...
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Valid values for android:fontFamily and what they map to?

In the answer to this question the user lists values for android:fontFamily and 12 variants (see below). Where do these values come from? The documentation for android:fontFamily does not list this information in any place (I checked here , and here ). The strings are listed in the Android ...