大约有 45,000 项符合查询结果（耗时：0.0705秒） [XML]
What to do about Eclipse's “No repository found containing: …” error messages?
...'s Helios EE bundle on Linux to which I added the subversive plugins, the m2e Maven integration and the Mylin connector for Trac. For the last couple of weeks I've been trying to install updates, and every time I get back a message like
...
In the shell, what does “ 2>&1 ” mean?
...
2671
File descriptor 1 is the standard output (stdout).
File descriptor 2 is the standard error (s...
Replace all 0 values to NA
...
252
Replacing all zeroes to NA:
df[df == 0] <- NA
Explanation
1. It is not NULL what you ...
What is the ultimate postal code and zip regex?
...
20 Answers
20
Active
...
Optional Parameters with C++ Macros
...f arguments to a macro.
enum
{
plain = 0,
bold = 1,
italic = 2
};
void PrintString(const char* message, int size, int style)
{
}
#define PRINT_STRING_1_ARGS(message) PrintString(message, 0, 0)
#define PRINT_STRING_2_ARGS(message, size) PrintString(message, size, 0...
Ruby - elegantly convert variable to an array if not an array already
...t of the time, but for some cases like a hash, it messes it up.
Array([1, 2, 3]) # => [1, 2, 3]
Array(1) # => [1]
Array(nil) # => []
Array({a: 1, b: 2}) # => [[:a, 1], [:b, 2]]
[*[1, 2, 3]] # => [1, 2, 3]
[*1] # => [1]
[*nil] # => ...
Five equal columns in twitter bootstrap
...tand how the 5 column grid is being used here:
http://web.archive.org/web/20120416024539/http://domain7.com/mobile/tools/bootstrap/responsive
...
What does tilde-greater-than (~>) mean in Ruby gem dependencies? [duplicate]
...
207
It means "equal to or greater than in the last digit", so e.g. ~> 2.3 means
"equal to 2.3 o...
How do you calculate the average of a set of circular data? [closed]
...
1
2
Next
102
...