大约有 45,000 项符合查询结果（耗时：0.0342秒） [XML]
How to delete duplicate rows in SQL Server?
...
23 Answers
23
Active
...
Is there a way to list pip dependencies/requirements?
...o I am providing an updated answer.
This was tested with pip versions 8.1.2, 9.0.1, 10.0.1, and 18.1.
To get the output without cluttering your current directory on Linux use
pip download [package] -d /tmp --no-binary :all: -v
-d tells pip the directory that download should put files in.
Bette...
Python integer division yields float
...
292
Take a look at PEP-238: Changing the Division Operator
The // operator will be available t...
Passing parameters to a Bash function
...and...
}
To call a function with arguments:
function_name "$arg1" "$arg2"
The function refers to passed arguments by their position (not by name), that is $1, $2, and so forth. $0 is the name of the script itself.
Example:
function_name () {
echo "Parameter #1 is $1"
}
Also, you need to...
Changing Vim indentation behavior by file type
...the file type? For instance, if I open a Python file it should indent with 2 spaces, but if I open a Powershell script it should use 4 spaces.
...
How do I exchange keys with values in a dictionary?
...
Python 2:
res = dict((v,k) for k,v in a.iteritems())
Python 3 (thanks to @erik):
res = dict((v,k) for k,v in a.items())
share
|
...
Maximum and Minimum values for ints
... the maximum value representable by an unsigned word will be sys.maxsize * 2 + 1, and the number of bits in a word will be math.log2(sys.maxsize * 2 + 2). See this answer for more information.
Python 2
In Python 2, the maximum value for plain int values is available as sys.maxint:
>>> sy...
What's the difference between lapply and do.call?
...
127
There is a function called Map that may be similar to map in other languages:
lapply returns ...
Redirect all output to file [duplicate]
...
1213
That part is written to stderr, use 2> to redirect it. For example:
foo > stdout.txt 2&...
Apache Prefork vs Worker MPM
...
120
Prefork and worker are two type of MPM apache provides. Both have their merits and demerits.
B...