大约有 43,000 项符合查询结果（耗时：0.0442秒） [XML]
How do I find the length (or dimensions, size) of a numpy matrix in python? [duplicate]
...
shape is a property of both numpy ndarray's and matrices.
A.shape
will return a tuple (m, n), where m is the number of rows, and n is the number of columns.
In fact, the numpy matrix object is built on top of the ndarray object, one of numpy's two fundamental objec...
GROUP BY to combine/concat a column [duplicate]
...T ',' + PageURL
FROM TableName
WHERE [User] = a.[User] AND Activity = a.Activity
FOR XML PATH (''))
, 1, 1, '') AS URLList
FROM TableName AS a
GROUP BY [User], Activity
SQLFiddle Demo
...
How to increase maximum execution time in php [duplicate]
...for infinite time of execution
Place this at the top of your PHP script and let your script loose!
Taken from Increase PHP Script Execution Time Limit Using ini_set()
share
|
improve this answer...
How to update a mongo record using Rogue with MongoCaseClassField when case class contains a scala E
I am upgrading existing code from Rogue 1.1.8 to 2.0.0 and lift-mongodb-record from 2.4-M5 to 2.5 .
1 Answer
...
Are parameters in strings.xml possible? [duplicate]
In my Android app I'am going to implement my strings with internationalization. I have a problem with the grammar and the way sentences build in different languages.
...
How do I pass a unique_ptr argument to a constructor or a function?
I'm new to move semantics in C++11 and I don't know very well how to handle unique_ptr parameters in constructors or functions. Consider this class referencing itself:
...
How do I use CREATE OR REPLACE?
Am I correct in understanding that CREATE OR REPLACE basically means "if the object exists, drop it, then create it either way?"
...
How to iterate over the files of a certain directory, in Java? [duplicate]
...ectoryListing) {
// Do something with child
}
} else {
// Handle the case where dir is not really a directory.
// Checking dir.isDirectory() above would not be sufficient
// to avoid race conditions with another process that deletes
// directories.
}
...
What's the right way to pass form element state to sibling/parent elements?
...ght or wrong depending on your situation.
If the app is a simple Markdown converter, C1 being the raw input and C2 being the HTML output, it's OK to let C1 trigger a setState in P, but some might argue this is not the recommended way to do it.
However, if the app is a todo list, C1 being the input...
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
...options like 'Save image'. This is because assigning a content effectively converts img from empty replaced element to something like <span><img></span>.
– Ilya Streltsyn
Jul 14 '13 at 22:55
...