大约有 41,000 项符合查询结果（耗时：0.0527秒） [XML]
How to temporarily exit Vim and go back
How could I exit Vim, not :q , and then go back to continue editing?
10 Answers
10
...
Using emit vs calling a signal as if it's a regular function in Qt
...:foo()
{
QMetaObject::activate(this, &staticMetaObject, 0, 0);
}
And the code emit foo(); is pre-processed to simply foo();
emit is defined in Qt/qobjectdefs.h (in the open-source flavor of the source anyway), like this:
#ifndef QT_NO_EMIT
# define emit
#endif
(The define guard is to a...
ASP.NET Identity's default Password Hasher - How does it work and is it secure?
...her that is default implemented in the UserManager that comes with MVC 5 and ASP.NET Identity Framework, is secure enough? And if so, if you could explain to me how it works?
...
Any reason why scala does not explicitly support dependent types?
There are path dependent types and I think it is possible to express almost all the features of such languages as Epigram or Agda in Scala, but I'm wondering why Scala does not support this more explicitly like it does very nicely in other areas (say, DSLs) ?
Anything I'm missing like "it is not n...
How do SQL EXISTS statements work?
I'm trying to learn SQL and am having a hard time understanding EXISTS statements. I came across this quote about "exists" and don't understand something:
...
Why can't I reference my class library?
I have a solution that contains a website and a class library in Visual Studio 2008.
20 Answers
...
The request was aborted: Could not create SSL/TLS secure channel
...12;
// Use SecurityProtocolType.Ssl3 if needed for compatibility reasons
And now, it works perfectly.
ADDENDUM
As mentioned by Robin French; if you are getting this problem while configuring PayPal, please note that they won't support SSL3 starting by December, 3rd 2018. You'll need to use TLS...
What does 'low in coupling and high in cohesion' mean
I have problems understanding the statement low in coupling and high in cohesion . I have googled and read a lot about this, but still finding it hard to understand.
...
Entity Framework - Invalid Column Name '*_ID"
I've narrowed this down to some issue between Code First and Database first EF, but I'm not sure how to fix it. I'll try to be as clear as I can, but I honestly am missing some of the understanding here myself. This is Entity Framework 4.4
...
svn: replace trunk with branch
...
Use svn move to move the contents of the old trunk somewhere else and rename the branch to trunk afterward.
Note that copy and move in svn work like file operations. You can use them to move/copy stuff around in your repository and these changes are versioned as well. Think of "move" as "c...