大约有 5,230 项符合查询结果(耗时:0.0193秒) [XML]

https://stackoverflow.com/ques... 

Convert DataFrame column type from string to datetime, dd/mm/yyyy format

...pd.Series(['05/23/2005'])) Out[11]: 0 2005-05-23 00:00:00 dtype: datetime64[ns] You can pass a specific format: In [12]: pd.to_datetime(pd.Series(['05/23/2005']), format="%m/%d/%Y") Out[12]: 0 2005-05-23 dtype: datetime64[ns] ...
https://stackoverflow.com/ques... 

Why is division in Ruby returning an integer instead of decimal value?

...o learn what works best. Here's the benchmark I put together: require 'base64';require 'zlib';puts Zlib.inflate(Base64.decode64("eJxlkMEOwiAQRO98hekFuGzxQEwPXvwR01ZqiYHqBk2Tln8XDlWgnDbM25nJonq9NaoD7ZTtR9PigxK09zM7AkgRHieXTYHOsBNf1nklM6B6TuhYpdp+rPgSdiCOi/d/kQ71QBOtAVFLEDly05+UYQ2H+MckL6z0zioDdJG1S9K...
https://stackoverflow.com/ques... 

How can bcrypt have built-in salts?

... the salt and the cipher text, concatenated and encoded in a modified Base-64. The first 22 characters decode to a 16-byte value for the salt. The remaining characters are cipher text to be compared for authentication. This example is taken from the documentation for Coda Hale's ruby implementatio...
https://stackoverflow.com/ques... 

How do I find numeric columns in Pandas?

... exclude. So isNumeric would look like: numerics = ['int16', 'int32', 'int64', 'float16', 'float32', 'float64'] newdf = df.select_dtypes(include=numerics) share | improve this answer | ...
https://stackoverflow.com/ques... 

How can I confirm a database is Oracle & what version it is using SQL?

...--------------------------------- Oracle Database 10g Release 10.2.0.3.0 - 64bit Production PL/SQL Release 10.2.0.3.0 - Production CORE 10.2.0.3.0 Production TNS for Solaris: Version 10.2.0.3.0 - Production NLSRTL Version 10.2.0.3.0 - Production ...
https://stackoverflow.com/ques... 

Does PowerShell support constants?

...ge. Copy and pasting from there, it's: set-variable -name test -value ([int64]100) -option Constant – Chris J Jul 6 '15 at 8:58 add a comment  |  ...
https://stackoverflow.com/ques... 

How to pass html string to webview on android

...rom server. Loading normal data wasn't working for me, converting into Base64 working just fine. String unencodedHtml ="<html><body>'%28' is the code for '('</body></html>"; tring encodedHtml = Base64.encodeToString(unencodedHtml.getBytes(), Base64.NO_PADDING); webView.loadDa...
https://stackoverflow.com/ques... 

Conveniently Declaring Compile-Time Strings in C++

...uldn't you use size_t instead of unsigned? – kirbyfan64sos Dec 10 '14 at 21:27 1 ...
https://stackoverflow.com/ques... 

hash function for string

... collisions for this 466k english dictionary while MurmurHash has none for 64 bit hashes, and 21 for 32 bit hashes (around 25 is to be expected for 466k random 32 bit hashes). My recommendation is using MurmurHash if available, it is very fast, because it takes in several bytes at a time. But if you...
https://stackoverflow.com/ques... 

Download file from web in Python 3

...access to the file. import urllib.request import gzip ... # Read the first 64 bytes of the file inside the .gz archive located at `url` url = 'http://example.com/something.gz' with urllib.request.urlopen(url) as response: with gzip.GzipFile(fileobj=response) as uncompressed: file_header ...