大约有 47,000 项符合查询结果（耗时：0.0790秒） [XML]
Single quotes vs. double quotes in C or C++
When should I use single quotes and double quotes in C or C++ programming?
12 Answers
...
Rails params explained?
Could anyone explain params in Rails controller: where they come from, and what they are referencing?
5 Answers
...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
...arison/branch. Whether it'll really improve speed may be open to question, and even if it does, it's probably too little to notice or care about, but when you're only starting with two comparisons, the chances of a huge improvement are pretty remote. The code looks like:
// use a < for an inclus...
Difference between Select and ConvertAll in C#
...
Select is a LINQ extension method and works on all IEnumerable<T> objects whereas ConvertAll is implemented only by List<T>. The ConvertAll method exists since .NET 2.0 whereas LINQ was introduced with 3.5.
You should favor Select over ConvertAll...
Why do I need 'b' to encode a string with Base64?
...
base64 encoding takes 8-bit binary byte data and encodes it uses only the characters A-Z, a-z, 0-9, +, /* so it can be transmitted over channels that do not preserve all 8-bits of data, such as email.
Hence, it wants a string of 8-bit bytes. You create those in Python ...
Handler vs AsyncTask vs Thread [closed]
I got slightly confused about the differences between Handlers , AsyncTask and Threads in Android. I've read quite a few blogs and questions here in StackOverflow.
...
Determine if variable is defined in Python [duplicate]
...is not always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or defined? in Ruby.
...
How to test if parameters exist in rails
I'm using an IF statement in Ruby on Rails to try and test if request parameters are set. Regardless of whether or not both parameters are set, the first part of the following if block gets triggered. How can I make this part ONLY get triggered if both params[:one] and params[:two] is set?
...
Using git to get just the latest revision
...o track a project that uses git. I don't want to clone the full repository and the full history, I just want the latest revision, and I want to be able to update to new revisions from the remote project.
...
Is there a difference between single and double quotes in Java?
Is there a difference between single and double quotes in Java?
4 Answers
4
...