大约有 40,000 项符合查询结果（耗时：0.0433秒） [XML]
Difference between a “coroutine” and a “thread”?
...cedures AKA functions -- they just pass the baton among each other more fluidly).
Threads are (at least conceptually) a form of concurrent processing: multiple threads may be executing at any given time. (Traditionally, on single-CPU, single-core machines, that concurrency was simulated with som...
Android destroying activities, killing processes
Hi I'm wondering how Android is managing memory and I can't find precise answer anywhere.
Let's assume I have an application with 5 activities on current activity stack (4 are stopped and 1 is resumed), there is no service connected. I press HOME button so that all of my activities are stopped.
I st...
What is an uninterruptible process?
... process which tells the cpu to slow down a bit and sits in a loop — the idle loop).
If a signal is sent to a sleeping process, it has to be woken up before it will return to user space and thus process the pending signal. Here we have the difference between the two main types of sleep:
TASK_IN...
How to upload a file in Django? [closed]
...edian.
Update 2015-03-17: Django 1.7 supported at GitHub, thanks to aronysidoro.
Update 2015-09-04: Django 1.8 supported at GitHub, thanks to nerogit.
Update 2016-07-03: Django 1.9 supported at GitHub, thanks to daavve and nerogit
Project tree
A basic Django 1.3 project with single app and medi...
Can I control the location of .NET user settings to avoid losing settings on application upgrade?
...w the msi can be installed, and if it upgrades, overwrites, or installs beside any other version of the same application.
For instance, if you have two versions of your software and they have different 'upgrade' codes, then to windows they are completely different pieces of software regardless of...
Why doesn't C# support the return of references?
...blog on June 23rd 2011. Thanks for the great question!
The C# team is considering this for C# 7. See https://github.com/dotnet/roslyn/issues/5233 for details.
UPDATE: The feature made it in to C# 7!
You are correct; .NET does support methods that return managed references to variables. .NET als...
In Windows Azure: What are web role, worker role and VM role?
...b, worker) are essentially Windows Server. Web and Worker roles are nearly identical:
Web roles are Windows Server VMs with IIS enabled
Worker roles are Windows Server VMs with IIS disabled (and you could manually enable it)
VM roles are Windows Server 2008 images you construct locally via Hyper-V...
SQL Server Script to create a new user
...ember N'db_owner', N'NewAdminName'
END;
GO
Now, Logins are a bit more fluid than I make it seem above. For example, a Login account is automatically created (in most SQL Server installations) for the Windows Administrator account when the database is installed. In most situations, I just use tha...
What is a patch in git version control?
...he changes made in a repository. It's generally used when someone from outside your team has read-only access but had a good code change available. He then creates a patch and sends it to you. You apply it and push it to the git repository. Everyone then benefits from the updated version, and the au...
Can I unshelve to a different branch in tfs 2008?
Let's assume that some developer in my team shelved his changes that he did in branch A. And I am working on branch B. Can I unshelve his changes into branch B? (By GUI or command prompt)
...