大约有 47,000 项符合查询结果(耗时:0.0584秒) [XML]
Parse (split) a string in C++ using string delimiter (standard C++)
...>=tiger";
std::string delimiter = ">=";
std::string token = s.substr(0, s.find(delimiter)); // token is "scott"
The find(const string& str, size_t pos = 0) function returns the position of the first occurrence of str in the string, or npos if the string is not found.
The substr(size_t p...
Standardize data columns in R
...have a dataset called spam which contains 58 columns and approximately 3500 rows of data related to spam messages.
15 An...
Getting list of lists into pandas DataFrame
...ctly:
df = pd.DataFrame(table, columns=headers)
df
Heading1 Heading2
0 1 2
1 3 4
share
|
improve this answer
|
follow
|
...
SQL statement to select all rows from previous day
...rom one table. The table holds one datetime column. I am using SQL Server 2005.
11 Answers
...
How to print a percentage value in python?
...supports a percentage floating point precision type:
>>> print "{0:.0%}".format(1./3)
33%
If you don't want integer division, you can import Python3's division from __future__:
>>> from __future__ import division
>>> 1 / 3
0.3333333333333333
# The above 33% example wo...
Removing leading zeroes from a field in a SQL statement
...ve the leading zeroes from a particular field, which is a simple VARCHAR(10) field. So, for example, if the field contains '00001A', the SELECT statement needs to return the data as '1A'.
...
How to split a delimited string into an array in awk?
...
Have you tried:
echo "12|23|11" | awk '{split($0,a,"|"); print a[3],a[2],a[1]}'
share
|
improve this answer
|
follow
|
...
Make Div overlay ENTIRE page (not just viewport)?
...nd why this is so hard to do... I've tried setting body, html heights to 100% etc but that isn't working. Here is what I have so far:
...
Ruby Bundle Symbol not found: _SSLv2_client_method (LoadError)
...
10 Answers
10
Active
...
PHP cURL vs file_get_contents
...
answered Jun 16 '12 at 16:00
XeoncrossXeoncross
49k7070 gold badges234234 silver badges340340 bronze badges
...