大约有 13,922 项符合查询结果（耗时：0.0218秒） [XML]
Error :Request header field Content-Type is not allowed by Access-Control-Allow-Headers
...sfigueira/archive/2012/07/02/cors-support-in-asp-net-web-api-rc-version.aspx". It is working successfully, and i post data from client side to server successfully.
...
Pretty-print C++ STL containers
...uct delimiters_values
{
typedef TChar char_type;
const TChar *prefix;
const TChar *delimiter;
const TChar *postfix;
};
// Defines the delimiter values for a specific container and character type
template<typename T, typename TChar>
struct delimiters
{
static const delimite...
“Inner exception” (with traceback) in Python?
...nd is in C# and I've just recently started programming in Python. When an exception is thrown I typically want to wrap it in another exception that adds more information, while still showing the full stack trace. It's quite easy in C#, but how do I do it in Python?
...
List vs tuple, when to use each? [duplicate]
...anted to implement a Point class. Would you use a tuple or a list to hold x, y, z coordinates? You would want to change the values (go with list), but at the same time order and position is meaningful and consistent (go with tuple?).
– Arlen
Aug 23 '11 at 15:...
Retrieve a single file from a repository
...
in git version 1.7.9.5 this seems to work to export a single file from a remote
git archive --remote=ssh://host/pathto/repo.git HEAD README.md
This will cat the contents of the file README.md.
...
Open a new tab in gnome-terminal using command line [closed]
I'm using Ubuntu 9.04 x64 and when I write:
10 Answers
10
...
Padding characters in printf
...
Pure Bash, no external utilities
This demonstration does full justification, but you can just omit subtracting the length of the second string if you want ragged-right lines.
pad=$(printf '%0.1s' "-"{1..60})
padlength=40
string2='bbbbbbb'...
Python: Checking if a 'Dictionary' is empty doesn't seem to work
... behave properly. It just skips it and displays ONLINE without anything except of display the message. Any ideas why ?
8 ...
Add legend to ggplot2 line plot
...
All that's left is a simple ggplot command:
ggplot(dd) + geom_line(aes(x=fecha, y=value, colour=variable)) +
scale_colour_manual(values=c("red","green","blue"))
Example plot
share
|
improv...
How to check if a float value is a whole number
...), and that floating point arithmetic can be imprecise (a float is an approximation using binary fractions, not a precise real number). But adjusting your loop a little this gives:
>>> for n in range(12000, -1, -1):
... if (n ** (1.0/3)).is_integer():
... print n
...
27
8
1
0
...