大约有 19,000 项符合查询结果（耗时：0.0348秒） [XML]
What is the difference between syntax and semantics in programming languages?
...d C statements. But what do they mean? Is it even valid to attempt to transform these statements into an executable sequence of instructions? These questions are at the heart of semantics.
Consider the ++ operator in the first statement. First of all, is it even valid to attempt this?
If x is a f...
What should main() return in C and C++?
...t this makes the program implementation defined, and no longer strictly conforming.
The standard defines 3 values for returning that are strictly conforming (that is, does not rely on implementation defined behaviour): 0 and EXIT_SUCCESS for a successful termination, and EXIT_FAILURE for an unsucces...
Command prompt won't change directory to another drive
...ry-long-path) or copy z:*.jpg (note: NOT z:\*.jpg!), which will copy files form your very-long-path. A simple z:` will switch to your Z: drive, where you are in your very-long-path. Very convenient, if you work a lot on command prompt.
– Stephan
Aug 27 '18 at 5...
JSF backing bean structure (best practices)
...to support UI logic, and has a 1::1 relationship with a JSF view, or a JSF form in a Facelet composition. Although it typically has JavaBean-style properties with associated getters/setters, these are properties of the View -- not of the underlying application data model. JSF backing-beans may also ...
Good Free Alternative To MS Access [closed]
... need to develop a lightweight desktop DB application on the Microsoft platforms.
28 Answers
...
Why doesn't std::queue::pop return value.?
...antics. Like pop_and_move. So copy constructor will not be called, and performance will depend on move constructor only.
share
|
improve this answer
|
follow
...
What is the best AJAX library for Django? [closed]
...tic, sadly, Django has no explicit integration (outside of admin) with its forms or views.
– Cerin
Jan 15 '13 at 16:14
2
...
Direct vs. Delegated - jQuery .on()
...t names in that first string.) .click() is just a shorthand for that first form.
– N3dst4
Aug 1 '13 at 7:45
1
...
C++ “virtual” keyword for functions in derived classes. Is it necessary?
...
struct Derived : Base {
virtual void some_func(int) override; // ill-formed - doesn't override a base class method
};
The compiler will issue a compile-time error and the programming error will be immediately obvious (perhaps the function in Derived should have taken a float as the argument)...
What is Data Transfer Object?
... |------------------| |------------|
-> Form | | -> Form | | -> Entity | |
| Controller | | Service / Facade | | Repository |
<- View | | <- ...