大约有 43,200 项符合查询结果（耗时：0.0511秒） [XML]
Get last result in interactive Python shell
...
Underscore.
>>> 5+5
10
>>> _
10
>>> _ + 5
15
>>> _
15
share
|
improve this answer
|
follow
...
Python using enumerate inside list comprehension
...
167
Try this:
[(i, j) for i, j in enumerate(mylist)]
You need to put i,j inside a tuple for the...
Multiple aggregations of the same column using pandas GroupBy.agg()
...there a pandas built-in way to apply two different aggregating functions f1, f2 to the same column df["returns"] , without having to call agg() multiple times?
...
How to remove item from array by value? [duplicate]
...
1
2
Next
502
...
namedtuple and default values for optional keyword arguments
...
21 Answers
21
Active
...
How do I set a variable to the output of a command in Bash?
...
14 Answers
14
Active
...
Convert dmesg timestamp to custom date format
...
182
Understanding dmesg timestamp is pretty simple: it is time in seconds since the kernel started...
How to remove duplicate values from a multi-dimensional array in PHP
...
19 Answers
19
Active
...
No increment operator (++) in Ruby? [duplicate]
...s: -x == ---x == -----x == ...... To increment a number, simply write x += 1.
Taken from "Things That Newcomers to Ruby Should Know
" (archive, mirror)
That explains it better than I ever could.
EDIT: and the reason from the language author himself (source):
++ and -- are NOT reserved ope...