大约有 30,000 项符合查询结果(耗时:0.0540秒) [XML]

https://stackoverflow.com/ques... 

Using i and j as variables in Matlab

...note the imaginary unit (1j works too). The only exception is when passing strings to the always-slightly-incompatible Symbolic engine. Strange that help 1i and doc 1i don't work though. – horchler Jun 2 '13 at 23:45 ...
https://stackoverflow.com/ques... 

How do I get a class instance of generic type T?

...Factory; private final Class<T> genericType; private final String RECORD_COUNT_HQL; private final String FIND_ALL_HQL; @SuppressWarnings("unchecked") public AbstractHibernateDao() { this.genericType = (Class<T>) GenericTypeResolver.resolveTypeArgument(g...
https://stackoverflow.com/ques... 

Python script to copy text to clipboard [duplicate]

...363/gadi-oron for the answer (I copied it completely) from How do I copy a string to the clipboard on Windows using Python? import pandas as pd df=pd.DataFrame(['Text to copy']) df.to_clipboard(index=False,header=False) I wrote a little wrapper for it that I put in my ipython profile <3 ...
https://stackoverflow.com/ques... 

How to send a header using a HTTP request through a curl call?

... man curl: -H/--header <header> (HTTP) Extra header to use when getting a web page. You may specify any number of extra headers. Note that if you should add a custom header that has the same name as one of the internal ones curl would ...
https://stackoverflow.com/ques... 

You can't specify target table for update in FROM clause

...le, so the safest bet is to force you to specify what will happen using an extra table. – siride Mar 9 '13 at 20:54 37 ...
https://stackoverflow.com/ques... 

How do I edit an existing tag message in git?

... > }' | # extract all the dates from the info > tail -2 | head -1)" `# get the second to last date, as the last one is the commit date` \ > git tag tag1 tag1^{} -a -f ...
https://stackoverflow.com/ques... 

How can I check if multiplying two numbers in Java will cause an overflow?

...If you're writing a large application, for example for a business, then an extra JAR on the classpath won't do any harm and Guava has lots of very useful code in it. It's much better to reuse their carefully tested code than to try to write your own version of the same (which I presume is what you r...
https://stackoverflow.com/ques... 

Difference between Python's Generators and Iterators

...iterables are the built-in tuples, lists, dictionaries, sets, frozen sets, strings, byte strings, byte arrays, ranges and memoryviews: >>> all(isinstance(element, collections.Iterable) for element in ( (), [], {}, set(), frozenset(), '', b'', bytearray(), range(0), memoryview(b''))...
https://stackoverflow.com/ques... 

Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k

...hen print i end if end for The first loop initialises the k extra entries to the same as the first entry in the array (this is just a convenient value that we know is already present in the array - after this step, any entries that were missing in the initial array of size N-k are sti...
https://stackoverflow.com/ques... 

Delete all the queues from RabbitMQ?

...rn: .* Apply to: Queues Definition: expires with value 1 (change type from String to Number) Save Checkout Queues tab again All Queues must be deleted And don't forget remove policy!!!!!!. share | ...