大约有 7,900 项符合查询结果(耗时:0.0266秒) [XML]
What are the differences between type() and isinstance()?
... # returns False, and this probably won't be what you want.
In other words, isinstance is true for subclasses, too.
Also see: How to compare type of an object in Python?
share
|
improve this ...
When is a C++ destructor called?
...ope (not regarding to when an object leaves a given {block}). So, in other words, when is a destructor called on an object in a linked list?
That's up to the implementation of the linked list. Typical collections destroy all their contained objects when they are destroyed.
So, a linked list of po...
Why does C++11 not support designated initializer lists as C99? [closed]
... person of age 18 (years?) but with height and weight of zero.
In other words, designated initializers support a programming style where internals are exposed, and the client is given flexibility to decide how they want to use the type.
C++ is more interested in putting the flexibility on the s...
CSS Selector “(A or B) and C”?
...
One word on experimental ones is that you don't want to start relying on them unless it officially implemented. While it could seem like a great solution - the possibility of it disappearing what personally prevents me from imple...
throw new std::exception vs throw std::exception
...
As usual the FAQ is badly worded. You can catch by value or reference. A pointer just happens to be a value (that you catch by value or reference). Remember the type A is distinct from the type A* so if I do throw A() I can NOT catch with catch(A* e) ...
Understanding what 'type' keyword does in Scala
I am new to Scala and I could not really find a lot about the type keyword. I am trying to understand what the following expression may mean:
...
Difference between applicationContext.xml and spring-servlet.xml in Spring Framework
...
In simple words,
applicationContext.xml defines the beans that are shared among all the servlets. If your application have more than one servlet, then defining the common resources in the applicationContext.xml would make more sense....
How to fix 'android.os.NetworkOnMainThreadException'?
...
@BrillPappin I almost entirely agree and have re-worded to emphasize the drawbacks of AsyncTask. (I still think there are a very small number of cases where - if you really know what you are doing - it might be OK to use AsyncTask, but the accepted answer doesn't point out ...
Java 7 language features with Android
... same for ADT.
But I had a surprise when trying to compile and run a Hello Word Android app. The compatibility was set to Java 6 with no way to force it to Java 7:
I tried with a non-Android project, a regular Java one, and I had the explanation. The compatibility level seems to be limited by E...
What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
...4.607s
The cmd/process has utilized this much amount of cpu time.
In other words, on machine with single core CPU, the real and user will be nearly equal, so the same command will take ~76 mins to complete.
sys
sys 2m29.432s
This is the time taken by the kernel to execute all the basic/system level ...
