大约有 30,000 项符合查询结果(耗时:0.0509秒) [XML]

https://stackoverflow.com/ques... 

Rails 3 execute custom sql query without a model

I need to write a standalone ruby script that is supposed to deal with database. I used code given below in rails 3 5 Answe...
https://stackoverflow.com/ques... 

Difference between abstraction and encapsulation?

... 64 @Sanjeev encapsulation is concrete, abstraction is...abstract! ;-) encapsulation is an object you can use, abstraction is an ideal you can ...
https://stackoverflow.com/ques... 

Javascript calculate the day of the year (1 - 366)

... The day component is base-1. i.e. to represent January 1st of this year, you'd use new Date(2014, 0, 1), and not new Date(2014, 0, 0) as you have here. Is that intentional? Perhaps that's what accounts for being off by one day as new Date(2014...
https://stackoverflow.com/ques... 

Generate GUID in MySQL for existing Data?

... @SamBarnum because UUID is generated based on the machine and timestamp. As a query that takes milliseconds to run, they have to be very very close indeed... but never the same... a good thing to assure you, is to add an UNIQUE index to that column. ...
https://stackoverflow.com/ques... 

Fixed position but relative to container

...2em; left: 50%; top: 50%; transform: translate(-50%, -50%); } Demos: jsFiddle: Centered horizontally only jsFiddle: Centered both horizontally and vertically Original credit goes to user aaronk6 for pointing it out to me in this answer ...
https://stackoverflow.com/ques... 

JavaScript unit test tools for TDD

...ght interest developers familiar with Ruby or Ruby on Rails. The syntax is based on RSpec that are used for testing in Rails projects. Jasmine specs can be run from an html page (in qUnit fashion) or from a test runner (as Karma). Jasmine is a behavior-driven development framework for testing your ...
https://stackoverflow.com/ques... 

Reading large text files with streams in C#

...ically maintain the buffer. December 2014 UPDATE: Your Mileage May Vary Based on the comments, FileStream should be using a BufferedStream internally. At the time this answer was first provided, I measured a significant performance boost by adding a BufferedStream. At the time I was targeting .NE...
https://stackoverflow.com/ques... 

Group vs role (Any real difference?)

...thing more), groups and roles function just the same. Groups, however, are based on identity, whereas roles are meant to demarcate activity. Unfortunately, operating systems tend to blur the distinction, treating roles as groups. You see a much clearer distinction with application or system-level r...
https://stackoverflow.com/ques... 

Attach a file from MemoryStream to a MailMessage in C#

...et.Mime.MimeTypeNames like System.Net.Mime.MediaTypeNames.Application.Pdf Based on Mime Type you need to specify correct extension in FileName for instance "myFile.pdf" share | improve this answer ...
https://stackoverflow.com/ques... 

Should I add the Visual Studio .suo and .user files to source control?

... when you view status, or commit files, those files won't clutter the code base and obscure new files you need to add. share | improve this answer | follow | ...