大约有 7,549 项符合查询结果(耗时:0.0403秒) [XML]
Do you have to put Task.Run in a method to make it async?
I'm trying to understand async await in the simplest form. I want to create a very simple method that adds two numbers for the sake of this example, granted, it's no processing time at all, it's just a matter of formulating an example here.
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Why XML-Serializable class need a parameterless constructor
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This is a limitation of XmlSerializer. Note that BinaryFormatter and DataContractSerializer do not require this - they can create an uninitialized object out of the ether and initialize it during deserialization.
Since you are using xml, you might consider using DataContractSeri...
Why am I merging “remote-tracking branch 'origin/develop' into develop”?
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How does one write code that best utilizes the CPU cache to improve performance?
...re evicted. May I ask what sort of profiling tools give you this kind of information, and how?
– Dragon Energy
May 3 '15 at 19:25
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Object reference not set to an instance of an object.Why doesn't .NET show which object is `null`?
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(For information about the new exception helper in Visual Studio 2017 see the end of this answer)
Consider this code:
String s = null;
Console.WriteLine(s.Length);
This will throw a NullReferenceException in the second line an...
Python __str__ versus __unicode__
... them for compatibility reasons. Generally, you should put all your string formatting in __unicode__(), and create a stub __str__() method:
def __str__(self):
return unicode(self).encode('utf-8')
In 3.0, str contains characters, so the same methods are named __bytes__() and __str__(). These b...
Why is it bad style to `rescue Exception => e` in Ruby?
...StandardError and you need a variable with the exception, you can use this form:
begin
# iceberg!
rescue => e
# lifeboats
end
which is equivalent to:
begin
# iceberg!
rescue StandardError => e
# lifeboats
end
One of the few common cases where it’s sane to rescue from Exceptio...
How to get string objects instead of Unicode from JSON?
...eritems()
}
# if it's anything else, return it in its original form
return data
Example usage:
>>> json_loads_byteified('{"Hello": "World"}')
{'Hello': 'World'}
>>> json_loads_byteified('"I am a top-level string"')
'I am a top-level string'
>>> json_load...
Instance variables vs. class variables in Python
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Same question at Performance of accessing class variables in Python - the code here adapted from @Edward Loper
Local Variables are the fastest to access, pretty much tied with Module Variables, followed by Class Variables, followed by Instance ...
How should I unit test threaded code?
...seems to be great for single thread programs and algorithms that have some form of concurrency but don't really interract with each other. I don't think it will work well testing a truely parrallel algoritm.
– Nicolas Bousquet
Jul 25 at 18:24
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