大约有 40,000 项符合查询结果（耗时：0.0686秒） [XML]
How to set the current working directory? [duplicate]
...
Perhaps this is what you are looking for:
import os
os.chdir(default_path)
share
|
improve this answer
|
follow
|
...
How to write logs in text file when using java.util.logging.Logger
I have a situation in which I want to write all logs created by me into a text file.
10 Answers
...
Parsing domain from a URL
...;
echo $parse['host']; // prints 'google.com'
parse_url doesn't handle really badly mangled urls very well, but is fine if you generally expect decent urls.
share
|
improve this answer
...
Facebook Post Link Image
When someone posts a link on facebook, a script usually scans that link for any images, and displays a quick thumbnail next to the post. For certain URLs though (including mine), FB doesn't seem to pick up anything, despite their being a number of images on that page.
...
What is “rvalue reference for *this”?
Came across a proposal called "rvalue reference for *this" in clang's C++11 status page .
3 Answers
...
“The breakpoint will not currently be hit. The source code is different from the original version.”
...
Using clean does not always work. I had to manually delete everything in my bin folder to get it to work again.
– Carra
May 4 '12 at 13:53
3
...
How to catch curl errors in PHP
...
You can use the curl_error() function to detect if there was some error. For example:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $your_url);
curl_setopt($ch, CURLOPT_FAILONERROR, true); // Required for HTTP error codes to be reported via ...
What is the difference between a definition and a declaration?
...// extern can be omitted for function declarations
class foo; // no extern allowed for type declarations
A definition actually instantiates/implements this identifier. It's what the linker needs in order to link references to those entities. These are definitions corresponding to the above declara...
What is the difference between “ is None ” and “ ==None ”
...
class Foo:
def __eq__(self,other):
return True
foo=Foo()
print(foo==None)
# True
print(foo is None)
# False
share
|
improve thi...
Why can't I make a vector of references?
...m reference something else later). Other non-assignable types are also not allowed as components of containers, e.g. vector<const int> is not allowed.
share
|
improve this answer
|
...