大约有 40,000 项符合查询结果(耗时:0.0558秒) [XML]

https://stackoverflow.com/ques... 

Django in / not in query

...e(); Tbl2.objects.filter(id__in=IDs') This did not work because IDs is actually a QuerySet object. When I deleted the rows it originated from, it no longer worked with other queries. The solution is Tbl2.objects.filter(id__in=list(IDs)) -- turn it into a list – Dakusan ...
https://stackoverflow.com/ques... 

Creating your own header file in C

... I was wondering if you could elaborate on how to compile with all required files and not have to include foo.c into gcc program argument. What is this technique called or what program can accomplish this outside of IDE - Make comes to my mind – nf071590 ...
https://stackoverflow.com/ques... 

Can iterators be reset in Python?

...ary data needs to be stored). In general, if one iterator uses most or all of the data before another iterator starts, it is faster to use list() instead of tee(). Basically, tee is designed for those situation where two (or more) clones of one iterator, while "getting out of sync" with ea...
https://stackoverflow.com/ques... 

How to install therubyracer gem on 10.10 Yosemite?

I don't manage to install therubyracer gem on Yosemite 10.10. 18 Answers 18 ...
https://stackoverflow.com/ques... 

How do I execute inserts and updates in an Alembic upgrade script?

...s is useful for simple migrations. Use the models and session as you normally would in your application. """create teams table Revision ID: 169ad57156f0 Revises: 29b4c2bfce6d Create Date: 2014-06-25 09:00:06.784170 """ revision = '169ad57156f0' down_revision = '29b4c2bfce6d' from alembic imp...
https://stackoverflow.com/ques... 

How to use ng-repeat without an html element

I need to use ng-repeat (in AngularJS) to list all of the elements in an array. 8 Answers ...
https://stackoverflow.com/ques... 

How can I delete all Git branches which have been merged?

...anches which have already been merged? Is there an easy way to delete them all instead of deleting them one by one? 45 Answ...
https://stackoverflow.com/ques... 

How do I speed up the gwt compiler?

... Let's start with the uncomfortable truth: GWT compiler performance is really lousy. You can use some hacks here and there, but you're not going to get significantly better performance. A nice performance hack you can do is to compile for only specific browsers, by inserting the following line in...
https://stackoverflow.com/ques... 

How to install MySQLdb (Python data access library to MySQL) on Mac OS X?

... Update for those using Python3: You can simply use conda install mysqlclient to install the libraries required to use MySQLdb as it currently exists. The following SO question was a helpful clue: Python 3 ImportError: No module named 'ConfigParser' . Installing mysqlclient will install...
https://stackoverflow.com/ques... 

Are there any standard exit status codes in Linux?

...ld died with 11" */ } How are you determining the exit status? Traditionally, the shell only stores an 8-bit return code, but sets the high bit if the process was abnormally terminated. $ sh -c 'exit 42'; echo $? 42 $ sh -c 'kill -SEGV $$'; echo $? Segmentation fault 139 $ expr 139 - 128 11 I...