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subtract two times in python
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It is possible to convert the timedelta object back to datetime ? I mean we have difference_delta .seconds(), is there any way to get back a datetime or time object ? Thx
– dejdej
Dec 11 '18 at 10:28
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CDC:DrawText 多行显示文本（文本自动换行） - C++ UI - 清泛IT社区，为创新赋能！
... | DT_TOP | DT_WORDBREAK | DT_EDITCONTROL, m_pfSongTi);
函数原型：
int DrawText(
HDC hDC, // handle to DC
LPCTSTR lpString, // text to draw
int nCount, // text length
LPRE...
Environment variable substitution in sed
... What if the string contains a \ followed by an n - how to stop sed from converting that into a single newline character?
– Max Waterman
Jul 24 at 9:58
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Android: create a popup that has multiple selection options
...y to an AlertDialog.Builder with the method setItems(CharSequence[], DialogInterface.OnClickListener).
An example:
String[] colors = {"red", "green", "blue", "black"};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Pick a color");
builder.setItems(colors, new Dialo...
Way to get all alphabetic chars in an array in PHP?
...ith Unicode characters. But it's good otherwise. I don't know if one could convert characters to integers and then the opposite to bypass this problem...
– NoOne
Jan 23 '16 at 11:24
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How do I deep copy a DateTime object?
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$date1 = new DateTime();
$date2 = new DateTime();
$date2->add(new DateInterval('P3Y'));
Update:
If you want to copy rather than reference an existing DT object, use clone, not =.
$a = clone $b;
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error: use of deleted function
..., which would not be initialized by the default ctor.
class X {
const int x;
};
Since X::x is const, it must be initialized -- but a default ctor wouldn't normally initialize it (because it's a POD type). Therefore, to get a default ctor, you need to define one yourself (and it must initializ...
python design patterns [closed]
...sentation."
return "<Null>"
def __str__(self):
"Convert to a string and return it."
return "Null"
With this, if you do Null("any", "params", "you", "want").attribute_that_doesnt_exists() it won't explode, but just silently become the equivalent of pass.
Normally...
Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
... copy of a slice from a DataFrame" warning.
– PlasmaBinturong
Mar 23 '19 at 16:38
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What is the proper way to check for existence of variable in an EJS template (using ExpressJS)?
...w can I implement this ? I tried on my own, but can't find how to properly convert this to a helper. thank you.
– Jonathan Lafleur
Sep 23 at 19:40
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