大约有 46,000 项符合查询结果(耗时:0.0730秒) [XML]

https://stackoverflow.com/ques... 

Meaning of @classmethod and @staticmethod for beginner? [duplicate]

...<= 31 and month <= 12 and year <= 3999 date2 = Date.from_string('11-09-2012') is_date = Date.is_date_valid('11-09-2012') Explanation Let's assume an example of a class, dealing with date information (this will be our boilerplate): class Date(object): def __init__(self, day=0, mont...
https://stackoverflow.com/ques... 

Find all records which have a count of an association greater than zero

..._id => [43, 34, 45, 55, 17, 19, 1, 3, 4, 18, 44, 5, 13, 22, 16, 6, 53] [11] pry(main)> _.size => 17 [12] pry(main)> Article.joins(:comments).size => 45 [13] pry(main)> Article.joins(:comments).distinct.size => 17 [14] pry(main)> Article.joins(:comments).distinct.to_sql => ...
https://stackoverflow.com/ques... 

Is there a simple way to convert C++ enum to string?

...ript? – phillipwei Aug 13 '09 at 16:11 add a comment  |  ...
https://stackoverflow.com/ques... 

Tetris-ing an array

... BoltClock♦ 601k141141 gold badges12621262 silver badges12641264 bronze badges answered Jul 18 '10 at 11:15 bragboybrag...
https://stackoverflow.com/ques... 

Calling JMX MBean method from a shell script

... | edited May 23 '19 at 11:50 Dónal 173k161161 gold badges522522 silver badges778778 bronze badges an...
https://stackoverflow.com/ques... 

How to remove newlines from beginning and end of a string?

... answered Sep 17 '11 at 11:19 CrozinCrozin 40.5k1111 gold badges8181 silver badges129129 bronze badges ...
https://stackoverflow.com/ques... 

#ifdef replacement in the Swift language

... Community♦ 111 silver badge answered Jun 11 '14 at 0:01 Jean Le MoignanJean Le Moignan 20...
https://stackoverflow.com/ques... 

How do I make a text input non-editable?

... answered Sep 9 '10 at 11:36 BoltClock♦BoltClock 601k141141 gold badges12611261 silver badges12641264 bronze badges ...
https://stackoverflow.com/ques... 

How does RegexOptions.Compiled work?

...| 1268 ms Compiled | x64 | 281 ms | 176 ms | 1180 ms These results show that compiled regular expressions can be up to 60% faster for cases where you reuse the Regex object. However in some cases can be over 3 orders of magnitude slower to construct. It also shows th...
https://stackoverflow.com/ques... 

How to convert list of key-value tuples into dictionary?

... answered Jul 5 '11 at 17:28 ninjageckoninjagecko 72.5k2121 gold badges124124 silver badges134134 bronze badges ...