大约有 5,100 项符合查询结果(耗时:0.0290秒) [XML]

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Determine the type of an object?

...t PEP8, but that you can use isinstance for your usecase (checking for a range of types) as well, and with as clean a syntax as well, which has the great advantage that you can capture subclasses. someone using OrderedDict would hate your code to fail because it just accepts pure dicts. ...
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Convert PDF to clean SVG? [closed]

...age PDF2SVG which does not use Batik any more: which has been tested on a range of PDFs. It produces SVG output consisting of characters as one <svg:text> per character paths as <svg:path> images as <svg:image> Later packages will (hopefully) convert the characters to running ...
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When to use generic methods and when to use wild-card?

... This is strange answer. It doesn't explain why you need to use ? at all. You could rewrite it as `public static <T1 extends Number, T2 extends Number> void copy(List<T1> dest, List<T2> src) and in this case it become ...
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What is the best place for storing uploaded images, SQL database or disk file system? [closed]

...ntify each picture. It also helps to strip the user's file name of any strange characters to avoid future complications. share | improve this answer | follow ...
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Differences between .NET 4.0 and .NET 4.5 in High level in .NET

...rmanently Redirecting a Page Shrinking Session State Expanding the Range of Allowable URLs Extensible Request Validation Object Caching and Object Caching Extensibility Extensible HTML, URL, and HTTP Header Encoding Performance Monitoring for Individual Applications in a S...
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How does the MapReduce sort algorithm work?

...tioner that uses a sorted list of N − 1 sampled keys that define the key range for each reduce. In particular, all keys such that sample[i − 1] <= key < sample[i] are sent to reduce i. This guarantees that the output of reduce i are all less than the output of reduce i+1." So their trick...
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Difference: std::runtime_error vs std::exception()

...ious even more specialized types of runtime error exceptions, such as std::range_error, std::overflow_error etc. You can define your own exception classes descending from std::runtime_error, as well as you can define your own exception classes descending from std::exception. Just like std::runtime_...
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What is the difference between Non-Repeatable Read and Phantom Read?

...modified in another transaction? Could that result in a phantom read? (A strange thing to do in most cases, but not impossible.) – jpmc26 May 13 '18 at 13:25 ...
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Android How to adjust layout in Full Screen Mode when softkeyboard is visible

...ted on a Nexus 5, and emulators running API levels 16-24 with screen sizes ranging from tiny to big. The code has been ported to Kotlin, but porting my changes back to Java is simple. Let me know if you need help: class AndroidBug5497Workaround constructor(activity: Activity) { private val con...
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Why is printing to stdout so slow? Can it be sped up?

...fp = file("out.txt", "w", 1) # line-buffered, like stdout [...] for x in range(lineCount): fp.write(line) os.fsync(fp.fileno()) # wait for the write to actually complete I ran your file writing test on my machine, and with buffering, it also 0.05s here for 100,000 lines. However, w...