大约有 40,000 项符合查询结果（耗时：0.0887秒） [XML]
Equivalent C++ to Python generator pattern
...ist in C++, just under another name: Input Iterators. For example, reading from std::cin is similar to having a generator of char.
You simply need to understand what a generator does:
there is a blob of data: the local variables define a state
there is an init method
there is a "next" method
ther...
How to write a multidimensional array to a text file?
...s in one line, I'm just being verbose to clarify things):
# Read the array from disk
new_data = np.loadtxt('test.txt')
# Note that this returned a 2D array!
print new_data.shape
# However, going back to 3D is easy if we know the
# original shape of the array
new_data = new_data.reshape((4,5,10))
...
Perl flags -pe, -pi, -p, -w, -d, -i, -t?
...ion :-)
The command line switches are all detailed in perlrun. (available from the command line by calling perldoc perlrun)
Going into the options briefly, one-by-one:
-p: Places a printing loop around your command so that it acts on each
line of standard input. Used mostly so Perl can beat ...
How to get body of a POST in php?
... so you can alternatively do:
$entityBody = stream_get_contents(STDIN);
From the PHP manual entry on I/O streamsdocs:
php://input is a read-only stream that allows you to read raw data
from the request body. In the case of POST requests, it is preferable
to use php://input instead of $HTT...
Detecting if an NSString contains…?
... "length" of NSRange should be tested...not "location".Here it is directly from source: "These methods return length==0 if the target string is not found. So, to check for containment: ([str rangeOfString:@"target"].length > 0). Note that the length of the range returned by these methods might b...
Does const mean thread-safe in C++11?
...rary may result in a data race. In conclusion, const does mean thread-safe from the Standard Library point of view. It is important to note that this is merely a contract and it won't be enforced by the compiler, if you break it you get undefined behavior and you are on your own. Whether const is pr...
How to empty a list in C#?
...ain it's capacity.
Count is set to 0, and references to other objects from elements of
the collection are also released.
Capacity remains unchanged.
Option #2 - Use Clear() and TrimExcess() functions to set List<T> to initial state.
Count is set to 0, and references to other...
HTML5 Number Input - Always show 2 decimal places
...place the markup above inside, type '1200' into the input and hit tab away from the element, the text displayed is still '1200' and not '1200.00'.
– Rick Glos
Dec 5 '16 at 19:47
8
...
Remove sensitive files and their commits from Git history
...ing you should be worried about is CHANGING YOUR PASSWORDS! It's not clear from your question whether your git repository is entirely local or whether you have a remote repository elsewhere yet; if it is remote and not secured from others you have a problem. If anyone has cloned that repository befo...
How to search by key=>value in a multidimensional array in PHP
...
Thank you for solution. Where do we get the "id"? From $outputArray?
– trante
Mar 17 '12 at 12:11
...