大约有 46,000 项符合查询结果（耗时：0.0814秒） [XML]
Converting from longitude\latitude to Cartesian coordinates
I have some earth-centered coordinate points given as latitude and longitude ( WGS-84 ).
9 Answers
...
What does -D_XOPEN_SOURCE do/mean?
I recently encountered some code that gcc would not compile without this arg. I checked the gcc man page, but did not find this specific option. I did find XOPEN_SOURCE , but there was little explanation of what it does.
...
Entity framework code-first null foreign key
I have a User < Country model. A user belongs to a country, but may not belong to any (null foreign key).
4 Answers
...
Modify alpha opacity of LESS variable
Using LESS, I know that I can change the saturation or tint of a color variable. That looks like this:
2 Answers
...
c# open file with default application and parameters
The most easy way to open a file with the default application is:
5 Answers
5
...
Java String split removed empty values
I am trying to split the Value using a separator.
But I am finding the surprising results
5 Answers
...
NameError: global name 'unicode' is not defined - in Python 3
I am trying to use a Python package called bidi. In a module in this package (algorithm.py) there are some lines that give me error, although it is part of the package.
...
Get first key in a (possibly) associative array?
What's the best way to determine the first key in a possibly associative array? My first thought it to just foreach the array and then immediately breaking it, like this:
...
Performing regex Queries with pymongo
I am trying to perform a regex query using pymongo against a mongodb server. The document structure is as follows
4 Answers...
How to add text to request body in RestSharp
I'm trying to use RestSharp to consume a web service. So far everything's gone very well (cheers to John Sheehan and all contributors!) but I've run into a snag. Say I want to insert XML into the body of my RestRequest in its already serialized form (i.e., as a string). Is there an easy way to do th...