大约有 35,394 项符合查询结果(耗时:0.0590秒) [XML]
How to remove leading zeros from alphanumeric text?
...s leading zeroes, but leaves one if necessary (i.e. it wouldn't just turn "0" to a blank string).
s.replaceFirst("^0+(?!$)", "")
The ^ anchor will make sure that the 0+ being matched is at the beginning of the input. The (?!$) negative lookahead ensures that not the entire string will be matched....
Spring RestTemplate - how to enable full debugging/logging of requests/responses?
... |
edited Oct 24 '18 at 8:00
answered Oct 8 '15 at 7:54
sof...
What is the fastest integer division supporting division by zero no matter what the result is?
...
107
Inspired by some of the comments I got rid of the branch on my Pentium and gcc compiler using
...
Regular expression to match URLs in Java
...
106
Try the following regex string instead. Your test was probably done in a case-sensitive manner....
Pandas - Get first row value of a given column
...
To select the ith row, use iloc:
In [31]: df_test.iloc[0]
Out[31]:
ATime 1.2
X 2.0
Y 15.0
Z 2.0
Btime 1.2
C 12.0
D 25.0
E 12.0
Name: 0, dtype: float64
To select the ith value in the Btime column you could use:
In [30]: df_te...
How to suppress scientific notation when printing float values?
...%f' % (x/y)
but you need to manage precision yourself. e.g.,
'%f' % (1/10**8)
will display zeros only.
details are in the docs
Or for Python 3 the equivalent old formatting or the newer style formatting
share
...
Number.sign() in javascript
...
More elegant version of fast solution:
var sign = number?number<0?-1:1:0
share
|
improve this answer
|
follow
|
...
Change select box option background color
...
10 Answers
10
Active
...
How can I find the number of days between two Date objects in Ruby?
...
10 Answers
10
Active
...
How to model type-safe enum types?
...
answered Aug 24 '09 at 11:07
skaffmanskaffman
374k9292 gold badges779779 silver badges744744 bronze badges
...