大约有 44,300 项符合查询结果(耗时:0.0451秒) [XML]
Apache Spark: map vs mapPartitions?
...
122
What's the difference between an RDD's map and mapPartitions method?
The method map conver...
Try/Catch block in PHP not catching Exception
...
12 Answers
12
Active
...
How to iterate through two lists in parallel?
... Python 3, zip
returns an iterator of tuples, like itertools.izip in Python2. To get a list
of tuples, use list(zip(foo, bar)). And to zip until both iterators are
exhausted, you would use
itertools.zip_longest.
Python 2
In Python 2, zip
returns a list of tuples. This is fine when foo and bar are...
How do I pass an extra parameter to the callback function in Javascript .filter() method?
...|
edited Oct 13 '11 at 19:29
answered Oct 13 '11 at 19:16
F...
How do you update Xcode on OSX to the latest version?
...
283
Open up App Store
Look in the top right for the updates section (may also be in lefthand co...
Empty arrays seem to equal true and false at the same time
...
276
You're testing different things here.
if (arr) called on object (Array is instance of Object...
How many files can I put in a directory?
...
21 Answers
21
Active
...
python exception message capturing
...successfully uploaded to '+ FTPADDR)
except Exception, e: # work on python 2.x
logger.error('Failed to upload to ftp: '+ str(e))
in Python 3.x and modern versions of Python 2.x use except Exception as e instead of except Exception, e:
try:
with open(filepath,'rb') as f:
con.storbi...
How to Compare Flags in C#?
...
322
In .NET 4 there is a new method Enum.HasFlag. This allows you to write:
if ( testItem.HasFlag(...