大约有 40,000 项符合查询结果(耗时:0.0493秒) [XML]

https://stackoverflow.com/ques... 

Get class name of object as string in Swift

Getting the classname of an object as String using: 31 Answers 31 ...
https://stackoverflow.com/ques... 

What is an idempotent operation?

... once with the same input parameters. For example, removing an item from a set can be considered an idempotent operation on the set. In mathematics, an idempotent operation is one where f(f(x)) = f(x). For example, the abs() function is idempotent because abs(abs(x)) = abs(x) for all x. These sli...
https://stackoverflow.com/ques... 

C++ obtaining milliseconds time on Linux — clock() doesn't seem to work properly

... You could use gettimeofday at the start and end of your method and then difference the two return structs. You'll get a structure like the following: struct timeval { time_t tv_sec; suseconds_t tv_usec; } EDIT: As the two comments below su...
https://stackoverflow.com/ques... 

Python memoising/deferred lookup property decorator

... def _lazyprop(self): if not hasattr(self, attr_name): setattr(self, attr_name, fn(self)) return getattr(self, attr_name) return _lazyprop class Test(object): @lazyprop def a(self): print 'generating "a"' return range(5) Interactive sessi...
https://stackoverflow.com/ques... 

Resizing an image in an HTML5 canvas

...errible. It looks as if it was downsized in photoshop with the resampling set to 'Nearest Neighbor' instead of Bicubic. I know its possible to get this to look right, because this site can do it just fine using a canvas as well. I've tried using the same code they do as shown in the "[Source]" ...
https://stackoverflow.com/ques... 

Wrap a delegate in an IEqualityComparer

...e the following type: class Value { public string Name { get; private set; } public int Number { get; private set; } public Value(string name, int number) { Name = name; Number = number; } public override string ToString() { return string.Format...
https://stackoverflow.com/ques... 

Can't seem to discard changes in Git

... back to normal (on a Mac): Completely remove the autocrlf & safecrlf settings from ~/.gitconfig Completely remove the autocrlf & safecrlf settings from your repo's local config ./.git/config git rm --cached -r . git reset --hard ...
https://stackoverflow.com/ques... 

Reset other branch to current without a checkout

... The workflows you describe are not equivalent: when you perform reset --hard you lose all the changes in the working tree (you might want to make it reset --soft). What you need is git update-ref refs/heads/OtherBranch refs/heads/CurrentBranch ...
https://stackoverflow.com/ques... 

What is the difference between UTF-8 and ISO-8859-1?

...g. Latin-1 encodes just the first 256 code points of the Unicode character set, whereas UTF-8 can be used to encode all code points. At physical encoding level, only codepoints 0 - 127 get encoded identically; code points 128 - 255 differ by becoming 2-byte sequence with UTF-8 whereas they are singl...
https://stackoverflow.com/ques... 

Changes in import statement python3

...n Python 2, you could do it like this (in derived.py): from base import BaseThing Python 3 no longer supports that since it's not explicit whether you want the 'relative' or 'absolute' base. In other words, if there was a Python package named base installed in the system, you'd get the wrong one....