大约有 45,000 项符合查询结果（耗时：0.0510秒） [XML]
What is the purpose of the word 'self'?
What is the purpose of the self word in Python? I understand it refers to the specific object created from that class, but I can't see why it explicitly needs to be added to every function as a parameter. To illustrate, in Ruby I can do this:
...
Is it possible to program iPhone in C++
I'm all for language diversity, but Objective C is insane. So I'm curious: is it possible to code iPhone apps with C++ while using the Cocoa API, etc?
...
No newline at end of file
When doing a git diff it says "No newline at end of file" .
12 Answers
12
...
Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti
This is not a duplicate of "How to safely call an async method in C# without await" .
8 Answers
...
Difference between null and empty (“”) Java String
...
"" is an actual string, albeit an empty one.
null, however, means that the String variable points to nothing.
a==b returns false because "" and null do not occupy the same space in memory--in other words, their variables don't point to the same object...
What is the purpose of shuffling and sorting phase in the reducer in Map Reduce Programming?
...p Reduce programming the reduce phase has shuffling, sorting and reduce as its sub-parts. Sorting is a costly affair.
9 Ans...
How to check if a string starts with a specified string? [duplicate]
I'm trying to check if a string starts with http . How can I do this check?
6 Answers
...
Is it possible only to declare a variable without assigning any value in Python?
Is it possible to declare a variable in Python, like so?:
14 Answers
14
...
Convert Python program to C/C++ code? [closed]
is it possible to convert a Python program to C/C++?
8 Answers
8
...
Custom HTTP headers : naming conventions
...
The recommendation is was to start their name with "X-". E.g. X-Forwarded-For, X-Requested-With. This is also mentioned in a.o. section 5 of RFC 2047.
Update 1: On June 2011, the first IETF draft was posted to deprecate the recommendation of using the "X-" prefix for n...