大约有 46,000 项符合查询结果（耗时：0.0422秒） [XML]
How do I drag and drop files into an application?
...
Is the (string[]) cast safe for any FileDrop-formatted drop? That is, is it possible to generate a FileDrop that will cause an illegal cast exception to string[]? I'm having trouble figuring that out from the docs.
– kd...
Swift - How to convert String to Double
...
For a little more Swift feeling, using NSFormatter() avoids casting to NSString, and returns nil when the string does not contain a Double value (e.g. "test" will not return 0.0).
let double = NSNumberFormatter().numberFromString(myString)?.doubleValue
Alternatively, extending Swif...
Why is there no std::stou?
...tee decided to go for such a C-ish approach? Something like boost::lexical_cast<>() seems like a more C++ way of doing things.
– Paul Manta
Jan 3 '12 at 17:27
2
...
How does a UILabel's minimumScaleFactor work?
...
the division should be casted as CGFloat, otherwise it wouldn't work
– dwery
Dec 15 '14 at 0:35
...
glob exclude pattern
...t sets, but this kind of operation only works on sets, hence why neutrinus cast it. If you need it to remain a list, simply wrap the entire operation in a cast: list(set(glob("*")) - set(glob("eph")))
– Nathan Smith
Aug 10 '17 at 21:48
...
How to get a enum value from string in C#?
... "0x80000002". Enum.Parse() method is useless in this case because you can cast the enum member to uint and get the value - 2147483650. Enum.Parse() of course gives the same result but instead of hardcoding a string as a parameter you can cast directly the enum variable you're working with.
...
Never seen before C++ for loop
...u--; is different from 0, it will be interpreted as true (i.e., implicitly casted to the boolean value true). If, instead, its value is 0, it will be casted to false.
This is very bad code.
Update: I discussed the writing of "for" loops in this blog post. Its recommendations can be summarized in t...
SQL-Server: Error - Exclusive access could not be obtained because the database is in use
...@@spid
while (@spid is not null)
begin
print 'Killing process ' + cast(@spid as varchar) + ' ...'
set @sql = 'kill ' + cast(@spid as varchar)
exec (@sql)
select
@spid = min(spid)
from
master..sysprocesses
where
dbid = db_id('<database_n...
Dynamically adding properties to an ExpandoObject
...ndo implements IDictionary<string, object>. I've always thought that cast would copy it to a dictionary. However, your post made me understand that if you change the Dictionary, you also change the underlying ExpandoObject! Thanks a lot
– Dynalon
Jan 27 '...
Java Constructor Inheritance
...oSomeStuff(){
// We know this.value is an Integer, so it's safe to cast.
doSomethingWithAnInteger((Integer)this.value);
}
}
// Client code:
Sub s = new Sub(Long.valueOf(666L)): // Devilish invocation of Super constructor!
s.doSomeStuff(); // throws ClassCastException
Or even s...