大约有 30,000 项符合查询结果(耗时:0.0547秒) [XML]

https://stackoverflow.com/ques... 

Database design for a survey [closed]

I need to create a survey where answers are stored in a database. I'm just wondering what would be the best way to implement this in the database, specifically the tables required. The survey contains different types of questions. For example: text fields for comments, multiple choice questions, and...
https://stackoverflow.com/ques... 

Should developers have administrator permissions on their PC

... fortranfortran 64.4k2222 gold badges122122 silver badges167167 bronze badges ...
https://stackoverflow.com/ques... 

How stable is the git plugin for eclipse?

...y with it has unpacked properly both with itself and with the canonical C based implementation, but that doesn't mean it won't generate a corrupt object." (from the README) – jcollum Jan 18 '13 at 0:38 ...
https://stackoverflow.com/ques... 

How to manage local vs production settings in Django?

...ng in development and production. And every developer has a different code base.I call anti-pattern here. – pydanny Jan 31 '13 at 16:25 8 ...
https://stackoverflow.com/ques... 

MySQL “Group By” and “Order By”

...sy to disable ONLY_FULL_GROUP_BY. For example: SET SESSION sql_mode = '';. Demo: db-fiddle.com/f/esww483qFQXbXzJmkHZ8VT/3 – mikep Apr 2 '19 at 7:26 1 ...
https://stackoverflow.com/ques... 

Can I set background image and opacity in the same property?

...You can use CSS psuedo selector ::after to achieve this. Here is a working demo. .bg-container{ width: 100%; height: 300px; border: 1px solid #000; position: relative; } .bg-container .content{ position: absolute; z-index:999; text-align: center; width: 100%; } .bg...
https://stackoverflow.com/ques... 

How to place div side by side

...iv> <div class="flex-item"></div> </div> jsFiddle demo Note that flex boxes are not backwards compatible with old browsers, but is a great option for targeting modern browsers (see also Caniuse and MDN). A great comprehensive guide on how to use flex boxes is available on C...
https://stackoverflow.com/ques... 

Android: How to Programmatically set the size of a Layout

...f LinearLayouts. Using weight I have the set resizing itself automatically based on the size of the containing parent LinearLayout. The idea is, based on the pixel count and density of the screen, to set the size of the containing layout to a number of pixels; and have the button set resize itself b...
https://stackoverflow.com/ques... 

PHP expresses two different strings to be the same [duplicate]

...en.wikipedia.org/wiki/IEEE_floating_point Name Common name Base Digits E min E max binary32 Single precision 2 23+1 −126 +127 binary64 Double precision 2 52+1 −1022 +1023 ...
https://stackoverflow.com/ques... 

Generating an MD5 checksum of a file

...) 0.0219960212708 subprocess.check_output(['cksum', filename]) 0.0553209781647 md5sum_mmap(filename) 0.0286180973053 md5sum_read(filename) 0.0311000347137 subprocess.check_output(['md5sum', filename]) 0.0332629680634 $ time md5sum /tmp/test.data.300k d3fe3d5d4c2460b5daacc30c6efbc77f /tmp/test.data....