大约有 40,000 项符合查询结果(耗时:0.0614秒) [XML]

https://stackoverflow.com/ques... 

Running a Python script from PHP

...e if PHP script runs in browser or curl) and/or must be "executable". Also all commands into .py file must have correct privileges: Taken from php manual: Just a quick reminder for those trying to use shell_exec on a unix-type platform and can't seem to get it to work. PHP executes as the w...
https://stackoverflow.com/ques... 

Why is a div with “display: table-cell;” not affected by margin?

... Cause From the MDN documentation: [The margin property] applies to all elements except elements with table display types other than table-caption, table and inline-table In other words, the margin property is not applicable to display:table-cell elements. Solution Consider using the bo...
https://stackoverflow.com/ques... 

Subscripts in plots in R

... How to load "2" from the variable? I have a loop and need to plot x_[1] x_[2] x_[3] ... – 0x2207 Dec 11 '14 at 11:38 6 ...
https://stackoverflow.com/ques... 

What is a web service endpoint?

...Service– a collection of related endpoints. http://www.ehow.com/info_12212371_definition-service-endpoint.html The endpoint is a connection point where HTML files or active server pages are exposed. Endpoints provide information needed to address a Web service endpoint. The endpoint provi...
https://stackoverflow.com/ques... 

Sequence contains no elements?

...boxes for the title and content, the ID and date aren't put on the page at all. Could this be the reason for it passing them as null\new? – Andy Hunt Aug 24 '09 at 19:43 2 ...
https://stackoverflow.com/ques... 

HTTP Basic Authentication - what's the expected web browser experience?

When a server allows access via Basic HTTP Authentication, what is the experience expected to be in a web browser ? 6 Answ...
https://stackoverflow.com/ques... 

UITableView row animation duration and completion callback

...o either specify the duration for UITableView row animations, or to get a callback when the animation completes? 10 Answers...
https://stackoverflow.com/ques... 

Install Gem from Github Branch?

... You don't need to build the gem locally. In your gemfile you can specify a github source with a ref, branch or tag. gem 'rails', :git => "git://github.com/rails/rails.git", :ref => "4aded" gem 'rails', :git => "git://github.com/rails/rails.git", :bra...
https://stackoverflow.com/ques... 

What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }

... It's usually to namespace (see later) and control the visibility of member functions and/or variables. Think of it like an object definition. The technical name for it is an Immediately Invoked Function Expression (IIFE). jQuery plug...
https://stackoverflow.com/ques... 

Postgresql aggregate array

... Use array_agg: http://www.sqlfiddle.com/#!1/5099e/1 SELECT s.name, array_agg(g.Mark) as marks FROM student s LEFT JOIN Grade g ON g.Student_id = s.Id GROUP BY s.Id By the way, if you are using Postgres 9.1, you don't need ...