大约有 44,000 项符合查询结果(耗时:0.0734秒) [XML]
Python group by
...tions import defaultdict
>>> res = defaultdict(list)
>>> for v, k in input: res[k].append(v)
...
Then, convert that dictionary into the expected format.
>>> [{'type':k, 'items':v} for k,v in res.items()]
[{'items': ['9085267', '11788544'], 'type': 'NOT'}, {'items': ['52...
What does the “@” symbol do in Powershell?
...rray:
"server1","server2"
So the @ is optional in those cases. However, for associative arrays, the @ is required:
@{"Key"="Value";"Key2"="Value2"}
Officially, @ is the "array operator." You can read more about it in the documentation that installed along with PowerShell, or in a book like "Wi...
Can functions be passed as parameters?
... If I understand your question correctly, I think you're looking for a func that returns a func, see here where I replace a hardcoded "quote123" function with a "quote" function that achieves the same result after you pass it some input: play.golang.org/p/52ahWAI2xsG
–...
iTerm2 keyboard shortcut - split pane navigation
... I have changed my config a lot, but I had to set these keys up before they worked.
– DigitalDesignDj
Oct 7 '15 at 20:37
3
...
What is the best way to count “find” results?
... not more reliable if the -printf flag to find isn't supported on your platform. ;-)
– Randy Howard
Mar 27 '13 at 16:28
7
...
How to add global ASP.Net Web Api Filters?
...
The following code, in my Global.asax, works for me:
public static void RegisterWebApiFilters(System.Web.Http.Filters.HttpFilterCollection filters)
{
filters.Add(new MyWebApiFilter());
}
protected void Application_Start()
{
RegisterWebApiFilters(GlobalConfiguratio...
See “real” commit date in github (hour/day)
...ithub, with day/hour precision? Older commits appear in a "human readable" format, such as "2 years ago" instead of showing the actual date.
...
What does the fpermissive flag do?
...om the docs:
-fpermissive
Downgrade some diagnostics about nonconformant code from errors to warnings.
Thus, using -fpermissive will allow some nonconforming code to compile.
Bottom line: don't use it unless you know what you are doing!
...
How to include file in a bash shell script
...e correct, but if run script in other folder, there will be some problem.
For example, the a.sh and b.sh are in same folder,
a include b with . ./b.sh to include.
When run script out of the folder, for example with xx/xx/xx/a.sh, file b.sh will not found: ./b.sh: No such file or directory.
I u...
How to get the contents of a webpage in a shell variable?
... -q quiet option to turn off's wget output.
You can use the curl command for this aswell as:
content=$(curl -L google.com)
echo $content
We need to use the -L option as the page we are requesting might have moved. In which case we need to get the page from the new location. The -L or --location...
