大约有 21,000 项符合查询结果（耗时：0.0399秒） [XML]
How to make graphics with transparent background in R using ggplot2?
I need to output ggplot2 graphics from R to PNG files with transparent background. Everything is ok with basic R graphics, but no transparency with ggplot2:
...
How can I tell if my server is serving GZipped content?
I have a webapp on a NGinx server. I set gzip on in the conf file and now I'm trying to see if it works. YSlow says it's not, but 5 out of 6 websites that do the test say it is. How can I get a definite answer on this and why is there a difference in the results?
...
What is the difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout?
Is there any difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout in .NET?
6 Answers
...
Should struct definitions go in .h or .c file?
I've seen both full definitions of struct s in headers and just declarations—is there any advantage to one method over the other?
...
C++11 range based loop: get item by value or reference to const
Reading some examples of range based loops they suggest two main ways 1, 2, 3, 4
4 Answers
...
Can mustache iterate a top-level array?
My object looks like this:
5 Answers
5
...
Guava: Why is there no Lists.filter() function?
Is there a reason there's
5 Answers
5
...
What are the differences between segment trees, interval trees, binary indexed trees and range trees
What are differences between segment trees, interval trees, binary indexed trees and range trees in terms of:
2 Answers
...
Can JSON start with “[”?
From what I can read on json.org , all JSON strings should start with { (curly brace), and [ characters (square brackets) represent an array element in JSON.
...
Passing a std::array of unknown size to a function
In C++11, how would I go about writing a function (or method) that takes a std::array of known type but unknown size?
6 Ans...