大约有 19,000 项符合查询结果(耗时:0.0319秒) [XML]

https://stackoverflow.com/ques... 

Getting the class name of an instance?

... Have you tried the __name__ attribute of the class? ie type(x).__name__ will give you the name of the class, which I think is what you want. >>> import itertools >>> x = itertools.count(0) >>> type(x).__name__ 'count...
https://stackoverflow.com/ques... 

List attributes of an object

... >>> class new_class(): ... def __init__(self, number): ... self.multi = int(number) * 2 ... self.str = str(number) ... >>> a = new_class(2) >>> a.__dict__ {'multi': 4, 'str': '2'} >>> a.__dict__.keys(...
https://stackoverflow.com/ques... 

Understanding the difference between __getattr__ and __getattribute__

I am trying to understand the difference between __getattr__ and __getattribute__ , however, I am failing at it. 4 Answe...
https://stackoverflow.com/ques... 

Fastest hash for non-cryptographic uses?

...e all sort of hashes for various purposes. This specific algorithm was the root source of many performance improvements in the current decade. It's also used in implementations of Bloom Filters. You should be aware that if you're searching for "fast hashes", you're probably facing a typical problem...
https://stackoverflow.com/ques... 

Difference between __str__ and __repr__?

What is the difference between __str__ and __repr__ in Python? 23 Answers 23 ...
https://stackoverflow.com/ques... 

Confused about __str__ on list in Python [duplicate]

Coming from a Java background, I understand that __str__ is something like a Python version of toString (while I do realize that Python is the older language). ...
https://stackoverflow.com/ques... 

A python class that acts like dict

... class Mapping(dict): def __setitem__(self, key, item): self.__dict__[key] = item def __getitem__(self, key): return self.__dict__[key] def __repr__(self): return repr(self.__dict__) def __len__(self): re...
https://stackoverflow.com/ques... 

How to find all the subclasses of a class given its name?

...ses (i.e. subclassed from object, which is the default in Python 3) have a __subclasses__ method which returns the subclasses: class Foo(object): pass class Bar(Foo): pass class Baz(Foo): pass class Bing(Bar): pass Here are the names of the subclasses: print([cls.__name__ for cls in Foo.__subcla...
https://stackoverflow.com/ques... 

What's the difference between a temp table and table variable in SQL Server?

... | 108640 | 120 | 108640 | 120 | | | LOP_ROOT_CHANGE | LCX_CLUSTERED | sys.sysallocunits.clust | 960 | 10 | 960 | 10 | | | LOP_SET_BITS | LCX_GAM | Unknown Alloc Unit | 1200 | ...
https://stackoverflow.com/ques... 

How do I achieve the theoretical maximum of 4 FLOPs per cycle?

...m> using namespace std; typedef unsigned long long uint64; double test_dp_mac_SSE(double x,double y,uint64 iterations){ register __m128d r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,rA,rB,rC,rD,rE,rF; // Generate starting data. r0 = _mm_set1_pd(x); r1 = _mm_set1_pd(y); r8 = _mm_set1_pd(...