大约有 40,000 项符合查询结果(耗时:0.0678秒) [XML]
What's the difference between `1L` and `1`?
I often seen the symbol 1L (or 2L , 3L , etc) appear in R code. Whats the difference between 1L and 1 ? 1==1L evaluates to TRUE . Why is 1L used in R code?
...
When should I use File.separator and when File.pathSeparator?
In the File class there are two strings, separator and pathSeparator .
3 Answers
...
Setting focus on an HTML input box on page load
I'm trying to set the default focus on an input box when the page loads (example: google).
My page is very simple, yet I can't figure out how to do this.
...
Convert Object to JSON string
jQuery.parseJSON('{"name":"John"}') converts string representation to object
but I want the reverse. Object is to be converted to JSON string
I got a link http://www.devcurry.com/2010/03/convert-javascript-object-to-json.html
but it need to have json2.js do jQuery has a native method to do this?
...
Using Position Relative/Absolute within a TD?
I have the following code:
5 Answers
5
...
Mercurial .hgignore for Visual Studio 2010 projects
Not to be confused with Mercurial .hgignore for Visual Studio 2008 projects
2 Answers
...
Intercept page exit event
When editing a page within my system, a user might decide to navigate to another website and in doing so could lose all the edits they have not saved.
...
What are the correct link options to use std::thread in GCC under linux?
Hi I am trying to use std::thread with G++. Here is my test code
5 Answers
5
...
How is Generic Covariance & Contra-variance Implemented in C# 4.0?
I didn't attend PDC 2008, but I heard some news that C# 4.0 is announced to support Generic covariance and contra-variance. That is, List<string> can be assigned to List<object> . How could that be?
...
