大约有 40,000 项符合查询结果(耗时:0.0785秒) [XML]
How to validate IP address in Python? [duplicate]
...ings like "4" and "192.168" and silently pads the rest with zeros. Technically valid, I'm sure, but not quite what I expected.
– krupan
Nov 25 '08 at 23:58
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How do I detect whether a Python variable is a function?
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If this is for Python 2.x or for Python 3.2+, you can also use callable(). It used to be deprecated, but is now undeprecated, so you can use it again. You can read the discussion here: http://bugs.python.org/issue10518. You can do this with:
callable(obj)
If this is for Python 3.x but ...
Render basic HTML view?
... multiple HTML/JS pages with this method ?
– user3398326
Jul 16 '14 at 5:28
7
shouldn't you be ab...
How to prevent ifelse() from turning Date objects into numeric objects
...irst this felt a little "hackish" to me. But now I just think of it as a small price to pay for the performance returns that I get from ifelse(). Plus it's still a lot more concise than a loop.
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How to draw border around a UILabel?
...ebug the text placement and to see the placement and how big the label actually is.
9 Answers
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Android : difference between invisible and gone?
...! I have no answer for your question. If you think this was very clear for all users, then the accepted answer should be a comment and have a link of documentation site. Am I correct?
– Pankaj Kumar
Mar 12 '15 at 6:09
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How to pass an array within a query string?
...s[]" value="Mercedes">
NOTE: Using field[] for multiple values is really poorly documented. I don't see any mention of it in the section on multi-valued keys in Query string - Wikipedia, or in the W3C docs dealing with multi-select inputs.
UPDATE
As commenters have pointed out, this is ve...
Can “list_display” in a Django ModelAdmin display attributes of ForeignKey fields?
...e that is what the string you're returning (and the short description) actually reference? Or change string format argument to obj.book.reviews?
– Carl G
Jun 20 '12 at 19:12
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Update MongoDB field using value of another field
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The best way to do this is in version 4.2+ which allows using of aggregation pipeline in the update document and the updateOne, updateMany or update collection method. Note that the latter has been deprecated in most if not all languages drivers.
MongoDB 4.2+
Version 4.2 ...
Best way to work with dates in Android SQLite [closed]
...at, the default if you use datetime('now') (yyyy-MM-dd HH:mm:ss) will then allow sorting by the date column.
Retrieving dates as strings from SQLite you can then format/convert them as required into local regionalised formats using the Calendar or the android.text.format.DateUtils.formatDateTime me...