大约有 40,000 项符合查询结果（耗时：0.0552秒） [XML]
How to convert “camelCase” to “Camel Case”?
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Vincent RobertVincent Robert
32.2k1111 gold badges7676 silver badges113113 bronze badges
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How to take the first N items from a generator or list in Python? [duplicate]
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lunixbochslunixbochs
17.8k22 gold badges3232 silver badges4444 bronze badges
53
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Why does Python use 'magic methods'?
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answered Apr 17 '10 at 7:32
Eli BenderskyEli Bendersky
218k7777 gold badges324324 silver badges390390 bronze badges
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What is the worst gotcha in C# or .NET? [closed]
...efixes for your private fields (there are others, but this is a good one): _myVar, m_myVar
– jrista
Jun 26 '09 at 8:01
205
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How to disable and re-enable console logging in Python?
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You can use:
logging.basicConfig(level=your_level)
where your_level is one of those:
'debug': logging.DEBUG,
'info': logging.INFO,
'warning': logging.WARNING,
'error': logging.ERROR,
'critical': logging.CRITICAL
So, if you set your_l...
Why do we need extern “C”{ #include } in C++?
...the prototype as a C function, the C++ will actually generate code calling _Zprintf, plus extra crap at the end.)
So: use extern "C" {...} when including a c header—it's that simple. Otherwise, you'll have a mismatch in compiled code, and the linker will choke. For most headers, however, you won'...
Can you add new statements to Python's syntax?
...8 LOAD_CONST 2 (1)
31 INPLACE_SUBTRACT
32 STORE_FAST 0 (num)
35 JUMP_ABSOLUTE 3
>> 38 POP_BLOCK
>> 39 LOAD_CONST 0 (None)
42 RETURN_VALUE
The most interesting operation is n...
How do you query for “is not null” in Mongo?
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answered Mar 15 '11 at 17:32
Tim GautierTim Gautier
24.1k44 gold badges4141 silver badges4949 bronze badges
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Preloading images with JavaScript
...OP:
var preloadImage = function (url) {
try {
var _img = new Image();
_img.src = url;
} catch (e) { }
}
Standard:
function preloadImage (url) {
try {
var _img = new Image();
_img.src = url;
} catch (e) { ...
Pandas percentage of total with groupby
...3]:
state office_id
AZ 2 0.492037
4 0.315321
6 0.192643
CA 1 0.441573
3 0.400546
5 0.157881
CO 1 0.388271
3 0.249779
5 0.361949
WA 2 ...