大约有 30,000 项符合查询结果(耗时:0.0411秒) [XML]

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What does “atomic” mean in programming?

... or have no apparent effect. So, for instance, in the context of a database system, one can have 'atomic commits', meaning that you can push a changeset of updates to a relational database and those changes will either all be submitted, or none of them at all in the event of failure, in this way...
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How to make input type= file Should accept only pdf and xls

... Please, never ever check a file based on the extension. What about a executable named lolcat.jpg? – feeela Aug 27 '12 at 13:14 1 ...
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?

...calhost (127.0.0.1): 48 data bytes 56 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.096 ms 56 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.088 ms 56 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.088 ms ^C--- localhost ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss ...
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How to implement custom JsonConverter in JSON.NET to deserialize a List of base class objects?

...verter { /// <summary> /// Create an instance of objectType, based properties in the JSON object /// </summary> /// <param name="objectType">type of object expected</param> /// <param name="jObject"> /// contents of JSON object that will be deser...
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What generates the “text file busy” message in Unix?

...e workaround: gcc -g -Wall -o rmk1 main.o -L. -lrmk -L/Users/jleffler/lib/64 -ljl if [ -f rmk ] ; then mv rmk rmk2 ; else true; fi ; mv rmk1 rmk So, to avoid problems with the 'text file busy', the build created a new file rmk1, then moved the old rmk to rmk2 (rename wasn't a problem; unlink was)...
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How to remove spaces from a string using JavaScript?

...ument.docx'; document.write( str.replace(/\s/g, '') ); Update: Based on this question, this: str = str.replace(/\s+/g, ''); is a better solution. It produces the same result, but it does it faster. The Regex \s is the regex for "whitespace", and g is the "global" flag, meaning match...
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What actually causes a Stack Overflow error? [duplicate]

... JB NizetJB Nizet 613k7878 gold badges10641064 silver badges11381138 bronze badges 2...
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CSS: Set a background color which is 50% of the width of the window

.... body { /* 50% right white */ background: red url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAACvAAAAABAQAAAAAqT0YHAAAAAnRSTlMAAHaTzTgAAAAOSURBVHgBYxhi4P/QAgDwrK5SDPAOUwAAAABJRU5ErkJggg==) center top repeat-y; /* 50% left white */ background: red url(data:image/png;base64,iVBORw0KG...
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Is it possible to make a Tree View with Angular?

... I have created a simple re-usable tree control (directive) for AngularJS based on a Bootstrap "nav" list. I added extra indentation, icons, and animation. HTML attributes are used for configuration. It does not use recursion. I called it angular-bootstrap-nav-tree ( catchy name, don't you thin...
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UICollectionView reloadData not functioning properly in iOS 7

... Cesare 7,7641313 gold badges6060 silver badges100100 bronze badges answered Dec 4 '13 at 21:09 Shaunti Fondrisi...