大约有 6,884 项符合查询结果（耗时：0.0336秒） [XML]
When should I use a List vs a LinkedList
...nsive since it must walk the chain each time (hence why it doesn't have an indexer). However, because a List<T> is essentially just an array (with a wrapper) random access is fine.
List<T> also offers a lot of support methods - Find, ToArray, etc; however, these are also available for L...
Copy table without copying data
...
Try
CREATE TABLE foo LIKE bar;
so the keys and indexes are copied over as, well.
Documentation
share
|
improve this answer
|
follow
...
Performing regex Queries with pymongo
...o that regex's anchored at the start (ie: starting with ^) are able to use indexes in the db, and will run much faster in that case.
– drevicko
Aug 13 '13 at 23:31
1
...
Random record from MongoDB
... document with a random number nearest rand.
And of course you'll want to index on the random field:
db.docs.ensureIndex( { key : 1, random :1 } )
If you're already querying against an index, simply drop it, append random: 1 to it, and add it again.
...
再说WCF Data Contract KnownTypeAttribute - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
...
<parameter type="System.String"/>
<parameter index="0"/>
</parameter>
</knownType>
</add>
</declaredTypes>
</dataContractSerializer>
</system.runtime.serialization>
以上代码就指定了将Circle<Dictionary<string, T>>...
Retaining file permissions with Git
...ls-files --full-name`
do
# Save the permissions of all the files in the index
echo $FILE";"`stat -c "%a;%U;%G" $FILE` >> $DATABASE
done
for DIRECTORY in `git ls-files --full-name | xargs -n 1 dirname | uniq`
do
# Save the permissions of all the directories in the index
echo $DIREC...
Determining Referer in PHP
...(mt_rand(), TRUE);
$_SESSION['token'] = $token;
$url = "http://example.com/index.php?token={$token}";
Then the index.php will look like this:
if(empty($_GET['token']) || $_GET['token'] !== $_SESSION['token'])
{
show_404();
}
//Continue with the rest of code
I do know of secure sites that ...
Does have to be in the of an HTML document?
...
However, due to an error made by both spec organisations, a non-normative index of elements included as an appendix in both specs was not properly updated to reflect the removal of scoped, rendering it inconsistent with the normative spec. I pointed this out both to the WhatWG and to the W3C, and i...
What is the difference between trie and radix trie data structures?
...Because in TRIE if you wan to search the next char you need to see the ith index in the child array of the current node but in radix tree you need search for all the child nodes sequentially. See the implementation code.google.com/p/radixtree/source/browse/trunk/RadixTree/src/…
...
Download File Using jQuery
...
If you don't want search engines to index certain files, you can use robots.txt to tell web spiders not to access certain parts of your website.
If you rely only on javascript, then some users who browse without it won't be able to click your links.
...