大约有 44,000 项符合查询结果（耗时：0.0638秒） [XML]
Statistics: combinations in Python
... +1 for suggesting to write something simple, for using reduce, and for the cool demo with pascal triangle
– jon_darkstar
Nov 8 '10 at 15:32
6
...
Is there a way to break a list into columns?
...
If you want a preset number of columns, you can use column-count and column-gap, as mentioned above.
However, if you want a single column with limited height that would break into more columns if needed, this can be achieved quite simply by changing display to flex.
This will not work o...
Notepad++ show open files on the left
...nces -> General, check "Show" in the "Document List Panel" area. EDIT: And now I see that the next answer (which has many more votes) already explained this.
– GordonM
Oct 11 '17 at 4:20
...
How can I perform a reverse string search in Excel without using VBA?
...
This one is tested and does work (based on Brad's original post):
=RIGHT(A1,LEN(A1)-FIND("|",SUBSTITUTE(A1," ","|",
LEN(A1)-LEN(SUBSTITUTE(A1," ","")))))
If your original strings could contain a pipe "|" character, then replace both in ...
What does 'stale file handle' in Linux mean?
Say I have a terminal open, and through that terminal I have cd 'ed to some directory. Through another terminal, I delete that directory and restore it back from an identical backup. When I try to vim a file from the first terminal, in the same directory, why do I get an error about a stale file ...
Git in Powershell saying 'Could not find ssh-agent'
I have git installed and it works great in the command prompt, but when I open up powershell it gives me this warning:
6 An...
Understanding the ngRepeat 'track by' expression
I'm having difficulties understanding how the track by expression of ng-repeat in angularjs works. The documentation is very scarce: http://docs.angularjs.org/api/ng/directive/ngRepeat
...
Change multiple files
The following command is correctly changing the contents of 2 files.
9 Answers
9
...
Shell - Write variable contents to a file
...
Use the echo command:
var="text to append";
destdir=/some/directory/path/filename
if [ -f "$destdir" ]
then
echo "$var" > "$destdir"
fi
The if tests that $destdir represents a file.
The > appends the text after truncating the ...
ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
I use the following command:
15 Answers
15
...