大约有 47,000 项符合查询结果（耗时：0.0555秒） [XML]
Getting the count of unique values in a column in bash
....Paused until further notice.
287k8181 gold badges340340 silver badges410410 bronze badges
add a comment
...
Regular expression for a hexadecimal number?
...
How about the following?
0[xX][0-9a-fA-F]+
Matches expression starting with a 0, following by either a lower or uppercase x, followed by one or more characters in the ranges 0-9, or a-f, or A-F
...
Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...utput of myFunction1 and myFunction2 now,
--- prog list "myFunction1" ---
0000 (s.go:5) TEXT myFunction1+0(SB),$16-24
0001 (s.go:6) MOVQ $type."".MyStructType+0(SB),(SP)
0002 (s.go:6) CALL ,runtime.new+0(SB)
0003 (s.go:6) MOVQ 8(SP),AX
0004 (s.go:8) MOVQ AX,.noname+0(FP)
0005 (s.go:8...
How to find Unused Amazon EC2 Security groups
... |
edited Jul 1 at 20:15
Dherik
11.2k1010 gold badges7373 silver badges114114 bronze badges
answer...
vertical & horizontal lines in matplotlib
...is range, regardless of coordinates. The parameters xmin or ymin use value 0.0 as the minimum of the axis and 1.0 as the maximum of the axis.
Instead, use plt.plot((x1, x2), (y1, y2), 'k-') to draw a line from the point (x1, y1) to the point (x2, y2) in color k. See pyplot.plot.
...
Get the current year in JavaScript
...ily: sans-serif;
}
<footer>
&copy; <span id="year">2018</span> by FooBar
</footer>
share
|
improve this answer
|
follow
...
What is the default value for enum variable?
...
It is whatever member of the enumeration represents the value 0. Specifically, from the documentation:
The default value of an enum E is the value produced by the expression (E)0.
As an example, take the following enum:
enum E
{
Foo, Bar, Baz, Quux
}
Without overriding the ...
How can I get a count of the total number of digits in a number?
...
Without converting to a string you could try:
Math.Ceiling(Math.Log10(n));
Correction following ysap's comment:
Math.Floor(Math.Log10(n) + 1);
share
|
improve this answer
|
...
How to run cron once, daily at 10pm
...2 I guess. Try the following to run it every first minute of the hour 22:
0 22 * * * ....
share
|
improve this answer
|
follow
|
...