大约有 9,700 项符合查询结果(耗时:0.0206秒) [XML]

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How to work around the lack of transactions in MongoDB?

...e can update the post collection and comments collection. So what are our approaches that we can take in MongoDB to overcome a lack of transactions? restructure - restructure the code, so that we're working within a single document and taking advantage of the atomic operations that we offer withi...
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window.close and self.close do not close the window in Chrome

...l do it, even if it requires to pop up an alert to confirm. These are not happening. 16 Answers ...
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How to read the Stock CPU Usage data

...s been the most helpful source of information regarding this I could find. Apparently the numbers do NOT reperesent load average in %: http://forum.xda-developers.com/showthread.php?t=1495763 share | ...
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Execute AsyncTask several times

...cTask. When I call mInstanceOfAT.execute("") everything is fine. But the app crash when I press an update button which calls again the AsyncTask(In case the network job didnt work). Cause then appears an Exception which says ...
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Unable to find valid certification path to requested target - error even after cert imported

... Unfortunately - it could be many things - and lots of app servers and other java 'wrappers' are prone to play with properties and their 'own' take on keychains and what not. So it may be looking at something totally different. Short of truss-ing - I'd try: java -Djavax.net.de...
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What are the benefits of using C# vs F# or F# vs C#? [closed]

...nt The advantages of C# are that it's often more accurate to "imperative"-applications (User-interface, imperative algorithms) than a functional programming language, that the .NET-Framework it uses is designed imperatively and that it's more widespread. Furthermore you can have F# and C# together...
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How to go about formatting 1200 to 1.2k in java

...bottom three lines of the format method). It leverages TreeMap to find the appropriate suffix. It is surprisingly more efficient than a previous solution I wrote that was using arrays and was more difficult to read. private static final NavigableMap<Long, String> suffixes = new TreeMap<>...
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How do I do base64 encoding on iOS?

...opy = 3; break; } for (i = 0; i < ctcopy; i++) [result appendString: [NSString stringWithFormat: @"%c", base64EncodingTable[output[i]]]]; for (i = ctcopy; i < 4; i++) [result appendString: @"="]; ixtext += 3; charsonline += 4; if ((length > 0) && (ch...
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SVN: Is there a way to mark a file as “do not commit”?

.../mike/dev/trunk IGNORE_FILES="\ foo/pom.xml \ foo/src/gwt/App.gwt.xml \ foo/src/main/java/gwt/Common.gwt.xml \ foo/src/main/resources/context/datasource/local.xml \ foo/src/main/resources/context/environment/local.xml" for i in $IGNORE_FILES; do mv $DIR/$i $...
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How to get the current date/time in Java [duplicate]

... @Geek - System.currentTimeMillis() value is approximately UTC, and there is probably a difference (delta) between the local UTC clock and true UTC. System.currentTimeMillis() is independent of the local timezone ... well ... because it is UTC, and UTC is the same irre...