大约有 47,000 项符合查询结果（耗时：0.0566秒） [XML]
Are the days of passing const std::string & as a parameter over?
...rgely gone. He suggested that writing a function such as the following is now preferable:
13 Answers
...
C++ static virtual members?
...what would happen when you called Object::GetTypeInformation()? It can't know which derived class version to call since there's no object associated with it.
You'll have to make it a non-static virtual function to work properly; if you also want to be able to call a specific derived class's versio...
Efficient way to rotate a list in python
What is the most efficient way to rotate a list in python?
Right now I have something like this:
26 Answers
...
phonegap open link in browser
... yes, i too used the same target="_blank" in the cordova 1.7.0 but now i am working with 2.9.0 and it is annoying me, your sujjestion as well not worked......:(
– ahsan ali
Jul 26 '13 at 17:41
...
How to remove convexity defects in a Sudoku square?
...a mask for the sudoku grid:
mask = FillingTransform[largestComponent]
Now, I can use a 2nd order derivative filter to find the vertical and horizontal lines in two separate images:
lY = ImageMultiply[MorphologicalBinarize[GaussianFilter[srcAdjusted, 3, {2, 0}], {0.02, 0.05}], mask];
lX = Image...
Create an array with same element repeated multiple times
...always better to avoid growing arrays by appending when possible. If you know the final size, use it.
– Tom Karzes
Aug 8 '16 at 20:01
43
...
Always pass weak reference of self into block in ARC?
... NSUInteger idx, BOOL *stop) {
[self doSomethingWithObj:obj];
}];
Now, your object (self) has an explicit strong reference to the block. And the block has an implicit strong reference to self. That's a cycle, and now neither object will be deallocated properly.
Because, in a situation like...
How to upgrade PowerShell version from 2.0 to 3.0
...staller, it says "This update is not applicable to your computer. " and I know from checking version that I am still on PowerShell 2.
– Shiva
Sep 3 '15 at 20:52
2
...
How to create module-wide variables in Python? [duplicate]
...name.
Imagine a file called foo.py, containing this single line:
X = 1
Now imagine you import it.
import foo
print(foo.X) # prints 1
However, let's suppose you want to use one of your module-scope variables as a global inside a function, as in your example. Python's default is to assume tha...
How to remove leading zeros from alphanumeric text?
... (Google's general-purpose Java utility library which I would argue should now be on the classpath of any non-trivial Java project), this would use CharMatcher:
CharMatcher.is('0').trimLeadingFrom(inputString);
share
...