大约有 5,000 项符合查询结果（耗时：0.0329秒） [XML]
Does HTTP use UDP?
...r transferring HTTP data and streaming it to the end-user:
XMPP's Jingle Raw UDP Transport Method
A number for services that use UDT --- UDP-based Data Transfer Protocol, which is the a superset of UDP protocol.
The Transport Layer Security (TLS) protocol encapsulating HTTP as well as the above me...
Querying DynamoDB by date
...entation
Original Answer:
DynamoDB does not allow indexed lookups on the range key only. The hash key is required such that the service knows which partition to look in to find the data.
You can of course perform a scan operation to filter by the date value, however this would require a full tab...
Test if lists share any items in python
...port timeit
>>> timeit('bool(set(a) & set(b))', setup="a=list(range(1000));b=list(range(1000))", number=100000)
26.077727576019242
>>> timeit('any(i in a for i in b)', setup="a=list(range(1000));b=list(range(1000))", number=100000)
0.16220548999262974
Here's a graph of the ex...
Does Java 8 provide a good way to repeat a value or function?
...
For this specific example, you could do:
IntStream.rangeClosed(1, 8)
.forEach(System.out::println);
If you need a step different from 1, you can use a mapping function, for example, for a step of 2:
IntStream.rangeClosed(1, 8)
.map(i -> 2 * i - 1)
...
Mapping two integers to one, in a unique and deterministic way
..., here. The limitation of Cantor pairing function (relatively) is that the range of encoded results doesn't always stay within the limits of a 2N bit integer if the inputs are two N bit integers. That is, if my inputs are two 16 bit integers ranging from 0 to 2^16 -1, then there are 2^16 * (2^16 -1)...
MySQL load NULL values from CSV data
...
Thanks for the tip - I am sceptical to edit the raw source data but if this is the only way around it I will try it out.
– Spiros
Apr 20 '10 at 13:55
7
...
Installing vim with ruby support (+ruby)
...
On mac os x, assuming you have Homebrew installed:
brew install https://raw.github.com/Homebrew/homebrew-dupes/master/vim.rb
This version of vim has ruby support enabled
Source: http://blog.jerodsanto.net/2011/08/brew-install-vim/
EDIT: edited the url, thanks @david-xia for mentioning the cha...
Breaking out of nested loops [duplicate]
...
for x in xrange(10):
for y in xrange(10):
print x*y
if x*y > 50:
break
else:
continue # only executed if the inner loop did NOT break
break # only executed if the inner loop DID brea...
How to generate a range of numbers between two numbers?
... Your first "Demo" link keeps telling me String index out of range: 33
– slartidan
Nov 19 '15 at 7:33
1
...
How to enumerate a range of numbers starting at 1
...entioned, this is straightforward to do in Python 2.6 or newer:
enumerate(range(2000, 2005), 1)
Python 2.5 and older do not support the start parameter so instead you could create two range objects and zip them:
r = xrange(2000, 2005)
r2 = xrange(1, len(r) + 1)
h = zip(r2, r)
print h
Result:
...