大约有 30,000 项符合查询结果（耗时：0.0367秒） [XML]
Is HttpClient safe to use concurrently?
... the examples I can find of usages of HttpClient , it is used for one off calls. But what if I have a persistent client situation, where several requests can be made concurrently? Basically, is it safe to call client.PostAsync on 2 threads at once against the same instance of HttpClient .
...
What really happens in a try { return x; } finally { x = null; } statement?
... .maxstack 1
.locals init (
[0] int32 CS$1$0000)
L_0000: call int32 Program::SomeNumber()
L_0005: stloc.0
L_0006: leave.s L_000e
L_0008: call void Program::Foo()
L_000d: endfinally
L_000e: ldloc.0
L_000f: ret
.try L_0000 to L_0008 finally handler L_0...
What is the proper declaration of main?
...
The main function cannot be used in your program: you are not allowed to call the main function from anywhere in your code, nor are you allowed to take its address.
The return type of main must be int. No other return type is allowed (this rule is in bold because it is very common to see incorre...
Help with C# generics error - “The type 'T' must be a non-nullable value type”
...int required by Nullable<T> itself. In other words, you could try to call:
CoalesceMax<string>(...)
which wouldn't make sense, as Nullable<string> isn't valid.
share
|
improve t...
Retrieve the commit log for a specific line in a file?
...
why is this called pick-axe ? :)
– Ciprian Tomoiagă
Jan 18 '18 at 16:18
add a comment
|
...
Can I pass an array as arguments to a method with variable arguments in Java?
...compatibility.
So you should just be able to prepend extraVar to args and call String.format(format, args).
share
|
improve this answer
|
follow
|
...
How can I catch a “catchable fatal error” on PHP type hinting?
...lassA::method_a() must be an instance of ClassB, instance of ClassA given, called in [...]
catched: Argument 1 passed to ClassA::method_a() must be an instance of ClassB, instance of ClassWrong given, called in [...]
method_a: ClassB
method_a: ClassC
done.
Old answer for pre-php7 versions:
http:...
How to delete migration files in Rails 3
... No, since Rails would not know how to delete it. It needs to call the self.down method defined on your migration to "downgrade" your database.
– Fábio Batista
Oct 7 '10 at 18:10
...
@Transactional(propagation=Propagation.REQUIRED)
...llback-only status individually, with an outer transaction scope being logically independent from the inner transaction scope. Of course, in case of standard PROPAGATION_REQUIRED behavior, all these scopes will be mapped to the same physical transaction. So a rollback-only marker set in the inner tr...
How to calculate the difference between two dates using PHP?
... In PHP, reference variables are in the function signature, not the call. Move all your & to the signatures.
– Paul Tarjan
Mar 19 '13 at 9:32
|...