大约有 42,000 项符合查询结果（耗时：0.0482秒） [XML]
What is the use of the ArraySegment class?
...2, 4 };
array.Dump();
var segment = new ArraySegment<byte>(array, 2, 3);
segment.Dump(); // output: 9, 20, 70
segment.Reverse().Dump(); // output 70, 20, 9
segment.Any(s => s == 99).Dump(); // output false
segment.First().Dump(); // output 9
array.Dump(); // no change
...
Correct way to convert size in bytes to KB, MB, GB in JavaScript
...tBytes(1024); // 1 KB
formatBytes('1024'); // 1 KB
formatBytes(1234); // 1.21 KB
formatBytes(1234, 3); // 1.205 KB
Demo / source :
function formatBytes(bytes, decimals = 2) {
if (bytes === 0) return '0 Bytes';
const k = 1024;
const dm = decimals < 0 ? 0 ...
Appending an element to the end of a list in Scala
...
List(1,2,3) :+ 4
Results in List[Int] = List(1, 2, 3, 4)
Note that this operation has a complexity of O(n). If you need this operation frequently, or for long lists, consider using another data type (e.g. a ListBuffer).
...
What is that “total” in the very first line after ls -l? [closed]
...
answered Sep 13 '11 at 12:18
MatMat
183k3333 gold badges357357 silver badges373373 bronze badges
...
How do I loop through a date range?
...very third day starting with the "start" date, you could just call AddDays(3) in the loop instead of AddDays(1).
share
|
improve this answer
|
follow
|
...
Python creating a dictionary of lists
...
>>> d
defaultdict(<type 'list'>, {1: ['1'], 2: ['1', '2'], 3: ['2']})
>>> d.items()
[(1, ['1']), (2, ['1', '2']), (3, ['2'])]
share
|
improve this answer
|
...
Adding new column to existing DataFrame in Python pandas
... a b c d
6 -0.269221 -0.026476 0.997517 1.294385
8 0.917438 0.847941 0.034235 -0.448948
>>> df1['e'] = pd.Series(np.random.randn(sLength), index=df1.index)
>>> df1
a b c d e
6 -0.269221 -0.026476 0.997517 ...
Safe String to BigDecimal conversion
... |
edited Mar 12 '18 at 23:13
Bax
3,68633 gold badges3030 silver badges5656 bronze badges
answered Sep ...
How to concatenate strings with padding in sqlite
...
3 Answers
3
Active
...