大约有 43,000 项符合查询结果（耗时：0.0404秒） [XML]
How to convert a Drawable to a Bitmap?
... I think I found something: if "draw" is the drawable I want to convert to a bitmap then: Bitmap bitmap = ((BitmapDrawable)draw).getBitmap(); does the trick!
– Rob
Jun 14 '10 at 9:29
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Convert pandas dataframe to NumPy array
I am interested in knowing how to convert a pandas dataframe into a NumPy array.
15 Answers
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How to reuse existing C# class definitions in TypeScript projects
...ve a lot of POCOs or you think they might change often, you could create a converter - something simple along the lines of...
public class MyPoco {
public string Name { get; set; }
}
To
export class MyPoco {
public Name: string;
}
There is also a discussion on Codeplex about auto-generatin...
How to parse a string to an int in C++?
...new functions still have the same issue as noted by Dan: they will happily convert the string "11x" to integer "11".
See more: http://en.cppreference.com/w/cpp/string/basic_string/stol
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Type-juggling and (strict) greater/lesser-than comparisons in PHP
...
Note: The above example throws a "Object of class stdClass could not be converted to double" notice.
You can find a few nice graphs for PHP's comparison operators on PHP Sadness 52 - Comparison operators.
As a last note, I want to point out that there are two equalities that PHP does guarantee...
What is the easiest way to get current GMT time in Unix timestamp format?
...now()
unixtime = calendar.timegm(d.utctimetuple())
print unixtime
How to convert Python UTC datetime object to UNIX timestamp
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C++ lambda with captures as a function pointer
...fn;
}
};
Exapmle
int a = 100;
auto b = [&](void*) {return ++a;};
Converting lambda with captures to a C pointer
void (*f1)(void*) = Lambda::ptr(b);
f1(nullptr);
printf("%d\n", a); // 101
Can be used this way as well
auto f2 = Lambda::ptr(b);
f2(nullptr);
printf("%d\n", a); // 102
In ca...
Byte array to image conversion
I want to convert a byte array to an image.
13 Answers
13
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C++: How to round a double to an int? [duplicate]
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The cast is unnecessary; the result will be implicitly converted to int.
– Keith Thompson
Mar 14 '12 at 3:04
8
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SQL order string as number
...version to number
select col from yourtable
order by col + 0
BTW MySQL converts strings from left to right. Examples:
string value | integer value after conversion
--------------+--------------------------------
'1' | 1
'ABC' | 0 /* the string does not contain a number, ...