大约有 35,480 项符合查询结果（耗时：0.0356秒） [XML]
Why do I need 'b' to encode a string with Base64?
...s 8-bit binary byte data and encodes it uses only the characters A-Z, a-z, 0-9, +, /* so it can be transmitted over channels that do not preserve all 8-bits of data, such as email.
Hence, it wants a string of 8-bit bytes. You create those in Python 3 with the b'' syntax.
If you remove the b, it be...
How to capture UIView to UIImage without loss of quality on retina display
... UIGraphicsBeginImageContextWithOptions (as documented on this page). Pass 0.0 for scale (the third argument) and you'll get a context with a scale factor equal to that of the screen.
UIGraphicsBeginImageContext uses a fixed scale factor of 1.0, so you're actually getting exactly the same image on ...
Must qualify the allocation with an enclosing instance of type GeoLocation
...
150
Hi I found a solution for this ;-)
This error happens because you're trying to create an inst...
Shell script to delete directories older than n days
...
401
This will do it recursively for you:
find /path/to/base/dir/* -type d -ctime +10 -exec rm -rf ...
How can I extract the folder path from file path in Python?
...s.
>>> import os
>>> '\\'.join(existGDBPath.split('\\')[0:-1])
'T:\\Data\\DBDesign'
Although, I would recommend using the os.path.dirname function to do this, you just need to pass the string, and it'll do the work for you. Since, you seem to be on windows, consider using the ab...
How to select a single field for all documents in a MongoDB collection?
In my MongoDB, I have a student collection with 10 records having fields name and roll . One record of this collection is:
...
Creating an empty Pandas DataFrame, then filling it?
...
350
Here's a couple of suggestions:
Use date_range for the index:
import datetime
import pandas as...
How do you use String.substringWithRange? (or, how do Ranges work in Swift?)
...NSString = str as NSString
myNSString.substringWithRange(NSRange(location: 0, length: 3))
Note: as JanX2 mentioned, this second method is not safe with unicode strings.
share
|
improve this answer...
How can I add a third button to an Android Alert Dialog?
... |
edited Aug 31 '14 at 20:29
jvperrin
3,28211 gold badge2020 silver badges3333 bronze badges
answered ...
Rounding a double to turn it into an int (java)
...
Drupad Panchal
38333 silver badges1010 bronze badges
answered Apr 16 '10 at 17:13
Mihir MathuriaMihir Mathuria
6,...