大约有 32,293 项符合查询结果（耗时：0.0469秒） [XML]
MySQL: @variable vs. variable. What's the difference?
...principles. Please don't write anther line of code until you know exactly what scope is, and why using using global variables is generally a terrible idea. When I took 101 programming classes, as I remember using a global for pretty much anything would result in an automatic "F". There are specia...
Reorder levels of a factor without changing order of values
...= x, FUN = FUN, ...) : argument "X" is missing, with no default". Not sure what the solution to this problem is. I can't find any relevant difference between the datasets.
– CoderGuy123
Dec 27 '15 at 21:49
...
Debug.Assert vs Exception Throwing
... use assertions, and I understood them well. But still, I don't understand what kind of motivation should drive me to use Debug.Assert instead of throwing a plain exception. What I mean is, in .NET the default response to a failed assertion is to "stop the world" and display a message box to the u...
What's the difference between using INDEX vs KEY in MySQL?
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1401572%2fwhats-the-difference-between-using-index-vs-key-in-mysql%23new-answer', 'question_page');
}
);
Post as a guest
...
Vim clear last search highlighting
...
No explanation of what these actually do and the consequences. Thanks to @SkippyleGrandGourou for explaining some of it.
– Jason S
May 27 '14 at 22:47
...
What is the difference between atomic / volatile / synchronized?
...thomasz: is compareAndSet(current, current + 1) synchronized ?? if no than what happens when two threads are executing this method at the same time ??
– hardik
Apr 2 '12 at 11:26
...
What does LayoutInflater in Android do?
What is the use of LayoutInflater in Android?
15 Answers
15
...
What “things” can be injected into others in Angular.js?
...called services. Services are defined by things called providers, which is what you're creating when you use $provide. Defining a provider is done via the provider method on the $provide service, and you can get hold of the $provide service by asking for it to be injected into an application's confi...
What are some resources for getting started in operating system development? [closed]
...
There are a lot of links after this brief overview of what is involved in writing an OS for the X86 platform.
The link that appears to be most promising (www.nondot.org/sabre/os/articles) is no longer available, so you'll need to poke through the Archive.org version to read it....
In Scala, what exactly does 'val a: A = _' (underscore) mean?
What exactly does val a: A = _ initialize a value to? Is this a typed null? Thanks.
2 Answers
...