大约有 40,000 项符合查询结果(耗时:0.0476秒) [XML]

https://stackoverflow.com/ques... 

event Action vs event EventHandler

...u use Action<> your event will not follow the design pattern of virtually any other event in the system, which I would consider a drawback. One upside with the dominating design pattern (apart from the power of sameness) is that you can extend the EventArgs object with new properties without...
https://stackoverflow.com/ques... 

Generating random numbers in Objective-C

...te the S-Boxes via arc4random_addrandom(). There is no need to call arc4random_stir() before using arc4random(), since arc4random() automatically initializes itself. EXAMPLES The following produces a drop-in replacement for the traditional rand() and random() functions using ...
https://stackoverflow.com/ques... 

Docker how to change repository name or rename image?

...host OS and Docker version? I suspect that something about your Docker installation is modifying the tag instruction. – Andy Feb 18 '16 at 2:41 27 ...
https://stackoverflow.com/ques... 

How to rsync only a specific list of files?

... for me using the --include-from option. Without the --exclude="*" option, all the files in the directory are being synced, with the option, no files are. ...
https://stackoverflow.com/ques... 

Java Reflection: How to get the name of a variable?

...they are in scope. Perhaps a byte-code engineering library like ASM would allow you to inspect this information at runtime. The only reasonable place I can think of for needing this information is in a development tool, and so byte-code engineering is likely to be useful for other purposes too. ...
https://stackoverflow.com/ques... 

How do you convert a time.struct_time object into a datetime object?

... This will usually work. However, it will fail if the time tuple is beyond the values mktime accepts, for example for the value (1970, 1, 1, 0, 0, 0, 0, 1, -1). I have encountered this after parsing the Date header on an HTTP request which...
https://stackoverflow.com/ques... 

PyLint, PyChecker or PyFlakes? [closed]

...plus for everybody, but I like it ;-) Cons of PyLint: Some rules are really strict. I know that you can change it and that the default is to match PEP8, but is it such a crime to write 'for x in seq'? Apparently yes because you can't write a variable name with less than 3 letters. I will change ...
https://stackoverflow.com/ques... 

Is there a decorator to simply cache function return values?

...maxsize=100, typed=False) Decorator to wrap a function with a memoizing callable that saves up to the maxsize most recent calls. It can save time when an expensive or I/O bound function is periodically called with the same arguments. Example of an LRU cache for computing Fibonacci numbers: @lru...
https://stackoverflow.com/ques... 

How to access the ith column of a NumPy multidimensional array?

...nswered Apr 20 '13 at 14:05 AkavallAkavall 62.1k3838 gold badges170170 silver badges215215 bronze badges ...
https://stackoverflow.com/ques... 

Splitting templated C++ classes into .hpp/.cpp files--is it possible?

...the implementation of a template class in a separate cpp file and compile. All the ways to do so, if anyone claims, are workarounds to mimic the usage of separate cpp file but practically if you intend to write a template class library and distribute it with header and lib files to hide the implemen...