大约有 42,000 项符合查询结果（耗时：0.0554秒） [XML]
Accessing Object Memory Address
...
The Python manual has this to say about id():
Return the "identity'' of an object.
This is an integer (or long integer)
which is guaranteed to be unique and
constant for this object during its
lifetime. Two objects with
non-overlapping li...
Windows threading: _beginthread vs _beginthreadex vs CreateThread C++
What's a better way to start a thread, _beginthread , _beginthreadx or CreateThread ?
17 Answers
...
Adding a column to an existing table in a Rails migration
I have a Users model which needs an :email column (I forgot to add that column during the initial scaffold).
11 Answers...
“Origin null is not allowed by Access-Control-Allow-Origin” error for request made by application ru
...tell, you had two problems:
You weren't passing a "jsonp" type specifier to your $.get, so it was using an ordinary XMLHttpRequest. However, your browser supported CORS (Cross-Origin Resource Sharing) to allow cross-domain XMLHttpRequest if the server OKed it. That's where the Access-Control-Allow...
How to commit changes to a new branch
I just made changes to a branch. How can I commit the changes to the other branch?
3 Answers
...
Custom method names in ASP.NET Web API
I'm converting from the WCF Web API to the new ASP.NET MVC 4 Web API. I have a UsersController, and I want to have a method named Authenticate. I see examples of how to do GetAll, GetOne, Post, and Delete, however what if I want to add extra methods into these services? For instance, my UsersService...
What is the purpose of AsQueryable()?
...he purpose of AsQueryable() just so you can pass around an IEnumerable to methods that might expect IQueryable , or is there a useful reason to represent IEnumerable as IQueryable ? For example, is it supposed to be for cases like this:
...
Is SHA-1 secure for password storage?
... SHA-1 is as safe as anything against preimage attacks, however it is easy to compute, which means it is easier to mount a bruteforce or dictionary attack. (The same is true for successors like SHA-256.) Depending on the circumstances, a hash function which was designed to be computationally expensi...
How to concatenate items in a list to a single string?
Is there a simpler way to concatenate string items in a list into a single string? Can I use the str.join() function?
11...
What is the Linux equivalent to DOS pause?
I have a Bash shell script in which I would like to pause execution until the user presses a key. In DOS, this is easily accomplished with the "pause" command. Is there a Linux equivalent I can use in my script?
...