大约有 42,000 项符合查询结果（耗时：0.0566秒） [XML]
Xcode 4 - “Valid signing identity not found” error on provisioning profiles on a new Macintosh insta
...
With Xcode 4.2 and later versions, including XCode 4.6, there is a better way to migrate your entire developer profile to a new machine. On your existing machine, launch Xcode and do this:
Open the Organizer (Shift-Command-2).
Select the...
What does threadsafe mean?
...ently I tried to Access a textbox from a thread (other than the UI thread) and an exception was thrown. It said something about the "code not being thread safe" and so I ended up writing a delegate (sample from MSDN helped) and calling it instead.
...
“tag already exists in the remote" error after recreating the git tag
...o get everyone who already has the "wrong" tag to delete their "wrong tag" and replace it with the new "right tag".
Testing in Git 2.10/2.11 shows that retaining the old tag is the default behavior for clients running git fetch, and updating is the default behavior for clients running git fetch --t...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
... in different web sites, but non of them worked. Finally I changed my code and found out what was the problem. I'll try to tell you about different approaches and sum them up here.
While I was seeking the internet to find the solution for this error, I figured out that there are many solutions that...
How to choose the right bean scope?
... represents the scope (the lifetime) of the bean. This is easier to understand if you are familiar with "under the covers" working of a basic servlet web application: How do servlets work? Instantiation, sessions, shared variables and multithreading.
@Request/View/Flow/Session/ApplicationScoped
A @...
PyCharm shows unresolved references error for valid code
I am using PyCharm to work on a project. The project is opened and configured with an interpreter, and can run successfully. The remote interpreter paths are mapped properly. This seems to be the correct configuration, but PyCharm is highlighting my valid code with "unresolved reference" errors, ...
How to create GUID / UUID?
...vaScript. I'm not sure what routines are available on all browsers, how "random" and seeded the built-in random number generator is, etc.
...
How to create a simple proxy in C#?
I have downloaded Privoxy few weeks ago and for the fun I was curious to know how a simple version of it can be done.
10 An...
What's the difference between HEAD, working tree and index, in Git?
Can someone tell me the difference between HEAD, working tree and index, in Git?
5 Answers
...
DateTime.Now vs. DateTime.UtcNow
...nciples of how the two properties work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario?
...