大约有 47,000 项符合查询结果（耗时：0.0880秒） [XML]
Hide all warnings in ipython
...g viewers, I want to disable all warnings emitted by warnings.warn calls from different packages. Is there a way to configure the ipythonrc file to automatically disable all such warnings?
...
Why do we not have a virtual constructor in C++?
...
Hear it from the horse's mouth. :)
From Bjarne Stroustrup's C++ Style and Technique FAQ Why don't we have virtual constructors?
A virtual call is a mechanism to get work done given partial
information. In particular, "virtual"...
How to split csv whose columns may contain ,
...parser = new TextFieldParser(new StringReader(csv));
// You can also read from a file
// TextFieldParser parser = new TextFieldParser("mycsvfile.csv");
parser.HasFieldsEnclosedInQuotes = true;
parser.SetDelimiters(",");
string[] fields;
while (!parser.EndOfData)
{
fields = parser.ReadFields(...
enum.values() - is an order of returned enums deterministic
...elds instead of ordinals:
Never derive a value associated with an enum from its ordinal; store it in an instance field instead.
share
|
improve this answer
|
follow
...
How to “EXPIRE” the “HSET” child key in redis?
...e useful in all scenarios and the performance characteristics might differ from the expected ones. Still worth mentioning:
When having a hash, the structure basically looks like:
hash_top_key
- child_key_1 -> some_value
- child_key_2 -> some_value
...
- child_key_n -> some_value
...
ASP.NET MVC 5 - Identity. How to get current ApplicationUser
...rlying OWIN access to the database will use a separate context, so changes from separate SQL access can produce invalid results (e.g. not seeing changes made to the database). Again the solution is to work with the supplied API and not try to work-around it.
The correct way to access the current us...
iPhone Keyboard Covers UITextField
...View beginAnimations: @"anim" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
self.view.frame = CGRectOffset(self.view.frame, 0, movement);
[UIView commitAnimations];
}
...
How to get an enum which is created in attrs.xml in code
...
There does not seem to be an automated way to get a Java enum from an attribute enum - in Java you can get the numeric value you specified - the string is for use in XML files (as you show).
You could do this in your view constructor:
TypedArray a = context.getTheme().obtainStyledAttr...
Meaning of numbers in “col-md-4”,“ col-xs-1”, “col-lg-2” in Bootstrap
...arge screens (remaining desktops)
Read the "Grid
Options"
chapter from the official Bootstrap documentation for more details.
You should usually classify a div using multiple column classes so it behaves differently depending on the screen size (this is the heart of what makes bootstrap r...
How to write header row with csv.DictWriter?
...ple example of using the writeheader() method now available in 2.7 / 3.2:
from collections import OrderedDict
ordered_fieldnames = OrderedDict([('field1',None),('field2',None)])
with open(outfile,'wb') as fou:
dw = csv.DictWriter(fou, delimiter='\t', fieldnames=ordered_fieldnames)
dw.writeh...