大约有 7,900 项符合查询结果（耗时：0.0333秒） [XML]
Are PDO prepared statements sufficient to prevent SQL injection?
...h in gbk is a two character sequence: 0xbf5c followed by 0x27. Or in other words, a valid character followed by an unescaped '. But we're not using addslashes(). So on to the next step...
$stmt->execute()
The important thing to realize here is that PDO by default does NOT do true prepared statem...
Why not use always android:configChanges=“keyboardHidden|orientation”?
...change. If you can't handle that - the user will not be happy...
In other words, using android:configChanges="keyboardHidden|orientation" is not a solution for your "worries." The right way is to code your activities so that they are happy with any restart Android throws at them. This is a good pra...
Is Haxe worth learning? [closed]
...gives you the options to target them. It's called the Haxe magic. In other words: you could to everything you could do in the native language of the platform + all the nice thing Haxe offers you.
What are the pitfalls or gotchas?
Documentation, sometimes installation are not 100% perfect. Th...
std::function vs template
... a design situation that gives you a choice, use templates. I stressed the word design because I think what you need to focus on is the distinction between the use cases of std::function and templates, which are pretty different.
In general, the choice of templates is just an instance of a wider p...
Difference between initLoader and restartLoader in LoaderManager
...-shot is not set.
unset the one-shot in either case.
(in other words, set some flag so that initLoader is always run once & that restartLoader is run on the 2nd & subsequent passes through onResume)
Also, remember to assign different ids for each of your loaders within an Activi...
What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?
...ource object itself is returned but cast to the target interface. In other words: the type is not changed, but the compile-time type is.
When the source object does not implement the target interface, the source object is converted into an object that implements the target interface. So both the ty...
Transaction isolation levels relation with locks on table
...t allow a value to be accessed until after it has been committed. In other words, if the transaction isolation level is set to TRANSACTION_READ_COMMITTED, the DBMS does not allow dirty reads to occur. The interface Connection includes five values that represent the transaction isolation levels you c...
Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
...s on strings that are found to contain non-ASCII.
From https://anonbadger.wordpress.com/2015/06/16/why-sys-setdefaultencoding-will-break-code/
def welcome_message(byte_string):
try:
return u"%s runs your business" % byte_string
except UnicodeError:
return u"%s runs your bus...
Lock-free multi-threading is for real threading experts
...e, each core will now have a different view of the RAM contents. In other words, one CPU doesn't know what another CPU has written until that RAM write cycle completed and the CPU refreshes its own view.
That is dramatically incompatible with threading. You always really care what the state of an...
How do JavaScript closures work?
...
f() // The only way to retrieve `secret`, is to invoke `f`
In other words: in JavaScript, functions carry a reference to a private "box of state", to which only they (and any other functions declared within the same lexical environment) have access. This box of state is invisible to the calle...