大约有 45,000 项符合查询结果（耗时：0.0659秒） [XML]
How can I get every nth item from a List?
I'm using .NET 3.5 and would like to be able to obtain every * n *th item from a List. I'm not bothered as to whether it's achieved using a lambda expression or LINQ.
...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
...
NOTE: PyPy is more mature and better supported now than it was in 2013, when this question was asked. Avoid drawing conclusions from out-of-date information.
PyPy, as others have been quick to mention, has tenuous support for C extensions. It has...
ADB Install Fails With INSTALL_FAILED_TEST_ONLY
...
Looks like you need to modify your AndroidManifest.xml
Change android:testOnly="true" to android:testOnly="false" or remove this attribute.
If you want to keep the attribute android:testOnly as true you can use pm install command with -t option, but you may n...
How to use Jackson to deserialise an array of objects
...esponse to my own comment above, first parse the json string to a jsonNode and then access the property of the array like this: JsonNode jsonNode = MAPPER.readTree(json); String arrayString = jsonNode.get("data").toString(); Then follow @Programmer Bruce's instructions above. List<Source> sour...
HashSet vs. List performance
...be better off using a List<T>.
I did a test for this on my machine, and, well, it has to be very very small to get an advantage from List<T>. For a list of short strings, the advantage went away after size 5, for objects after size 20.
1 item LIST strs time: 617ms
1 item HASHSET strs t...
What can I use instead of the arrow operator, `->`?
... them inconsistently. Becomes really annoying when you work with templates and don't know the precise type.
– Konrad Rudolph
Oct 21 '08 at 10:15
1
...
HTML tag affecting line height, how to make it consistent?
...rome 3 or FF 3.5. I still get 1-2px of difference.
– Andrew Bullock
Oct 7 '09 at 10:44
As mentioned this doesn't alway...
How to use sed to remove the last n lines of a file
...
+1 for simplicity. The equivalent sed command is butt ugly: sed -e :a -e '$d;N;2,5ba' -e 'P;D' file (,5 for last 5 lines).
– Marc B
Nov 14 '12 at 14:28
...
Ruby max integer
...'s 32bits even in 64bit ruby on windows (cygwin has proper 64bit on other hand)
– graywolf
Jan 21 '18 at 15:15
add a comment
|
...
Eclipse Kepler for OS X Mavericks request Java SE 6
I have just made a clean installation of OS X Mavericks , and I have downloaded Eclipse Kepler , but if I execute it, gives me this message:
...