大约有 6,261 项符合查询结果（耗时：0.0175秒） [XML]
Left-pad printf with spaces
...er can optimise printf formats. For instance, GCC optimises printf("%s\n", foo) and replaces it with puts(foo).
– sam hocevar
Jan 10 '10 at 1:16
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Should “node_modules” folder be included in the git repository
...our node_modules are under VCS – switching branches is just git checkout foo. If node_modules are not under VCS – switching branches is git checkout foo ; npm install and whatever your current NPM version requires to work ;)
– Ivan Kleshnin
Jul 9 '16 at 9:0...
“static const” vs “#define” vs “enum”
...hose values for declaring array sizes for example:
#define MAXLEN 5
void foo(void) {
int bar[MAXLEN];
}
ANSI C doesn't allow you to use static consts in this context as far as I know. In C++ you should avoid macros in these cases. You can write
const int maxlen = 5;
void foo() {
int bar[...
When should I use the assets as opposed to raw resources in Android?
...et into a WebView. For example, for accessing an asset located in
assets/foo/index.html within your project, you can call
loadUrl("file:///android_asset/foo/index.html") loading that HTML
into the WebView.
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python's re: return True if string contains regex pattern
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The best one by far is
bool(re.search('ba[rzd]', 'foobarrrr'))
Returns True
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How can you dynamically create variables via a while loop? [duplicate]
... Record(object):
... pass
...
>>> r = Record()
>>> r.foo = 'oof'
>>> setattr(r, 'bar', 'rab')
>>> r.foo
'oof'
>>> r.bar
'rab'
>>> names = 'id description price'.split()
>>> values = [666, 'duct tape', 3.45]
>>> s = Record()
...
Does Python have “private” variables in classes?
...use the __ prefix from PEP 8. Python mangles the names of variables like __foo so that they're not easily visible to code outside the class that contains them (although you can get around it if you're determined enough, just like you can get around Java's protections if you work at it).
By the same...
Why is using 'eval' a bad practice?
... An overhead which can be avoided by using better design patterns.
As a footnote, in the hands of deranged sociopaths, it may not work out well. However, when confronted with deranged sociopathic users or administrators, it's best to not give them interpreted Python in the first place. In the h...
Ruby: How to post a file via HTTP as multipart/form-data?
...t form data:
require 'rest_client'
RestClient.post('http://localhost:3000/foo',
:name_of_file_param => File.new('/path/to/file'))
It also supports streaming.
gem install rest-client will get you started.
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How to get the contents of a webpage in a shell variable?
...you can use w3m -dump to have a nice text representation of a web page.
$ foo=$(w3m -dump http://www.example.com/); echo $foo
You have reached this web page by typing "example.com", "example.net","example.org" or "example.edu" into your web browser. These domain names are reserved for use in docume...