大约有 40,000 项符合查询结果（耗时：0.0894秒） [XML]
Difference between Dictionary and Hashtable [duplicate]
...with ILookup<>: it also implements an Enumerator, which is different from the Dictionary enumerator. When a Linq operator is used on the multivaluedictionary, it can't chose which enumerator to use as it also can use IEnumerable<TKey, IGrouping<TKey, TValue>>, even though ILookup i...
How to sum up elements of a C++ vector?
...
I wanted to fix the typo from "accumuate" to "accumulate" by "edit", but was told by stackoverflow that "Edits must be at least 6 characters".
– aafulei
Jun 29 at 9:59
...
Converting 'ArrayList to 'String[]' in Java
...u have to pass an array as an argument, which will be filled with the data from the list, and returned. You can pass an empty array as well, but you can also pass an array with the desired size.
Important update: Originally the code above used new String[list.size()]. However, this blogpost reveals...
Why should I prefer single 'await Task.WhenAll' over multiple awaits?
...erving the same SynchronizationContext, to further push its benefits aside from the semantics. I found no conclusive documentation, but looking at the IL there are evidently different implementations of IAsyncStateMachine in play. I don't read IL all that well, but WhenAll at the very least appears ...
Why is the JVM stack-based and the Dalvik VM register-based?
...on an architecture with few registers (e.g. IA32).
In Dalvik VM Internals from Google I/O 2008, the Dalvik creator Dan Bornstein gives the following arguments for choosing a register-based VM on slide 35 of the presentation slides:
Register Machine
Why?
avoid instruction dispatch
...
Co-variant array conversion from x to y may cause run-time exception
...nd runtime/compile time difference as in your example but isn't conversion from special type to base type legal? Moreover I have typed list and I am going from LinkLabel (specialized type) to Control (base type).
– TheVillageIdiot
Jan 2 '12 at 19:16
...
Determine the path of the executing BASH script [duplicate]
...
Within bash you can also use $BASH_SOURCE. From this post.
– JamesThomasMoon1979
May 1 '13 at 17:10
...
Loop through Map in Groovy?
...in the Groovy language docs (I don't think it is!)? I guess I'm wondering, from a Groovy newbies' perspective, How did you know this?
– smeeb
Oct 24 '15 at 10:40
...
Detecting iOS / Android Operating system
...i.test(userAgent)) {
return "Android";
}
// iOS detection from: http://stackoverflow.com/a/9039885/177710
if (/iPad|iPhone|iPod/.test(userAgent) && !window.MSStream) {
return "iOS";
}
return "unknown";
}
...
ValueError: setting an array element with a sequence
...
From the code you showed us, the only thing we can tell is that you are trying to create an array from a list that isn't shaped like a multi-dimensional array. For example
numpy.array([[1,2], [2, 3, 4]])
or
numpy.array([...