大约有 40,000 项符合查询结果（耗时：0.0481秒） [XML]
getting date format m-d-Y H:i:s.u from milliseconds
...es not work on all locales correctly. Some countries like Germany write "0,1234" or "0.1234" instead of ".1234", therefore your code gives following output for me: 2012-07-08 11:14:15.0.889342
– Daniel Marschall
Apr 18 at 13:14
...
How to convert an IPv4 address into a integer in C#?
... I see the issue. Repeated numbers such as 1.1.1.1, 2.2.2.2, 123.123.123.123 always yield the same result. For posterity, see updated fiddle: dotnetfiddle.net/aR6fhc
– Jesse
Mar 9 '18 at 18:30
...
How to store a dataframe using Pandas
...
Pickle works good!
import pandas as pd
df.to_pickle('123.pkl') #to save the dataframe, df to 123.pkl
df1 = pd.read_pickle('123.pkl') #to load 123.pkl back to the dataframe df
share
|
...
Splitting on first occurrence
...
>>> s = "123mango abcd mango kiwi peach"
>>> s.split("mango", 1)
['123', ' abcd mango kiwi peach']
>>> s.split("mango", 1)[1]
' abcd mango kiwi peach'
...
Play a Sound with Python [duplicate]
...all these malfunctioning sound libraries tbh. Substituting xdg-open for mpg123 will give afplay functionality on Linux
– Louis Maddox
Jul 9 '14 at 12:00
...
Preferred order of writing latitude & longitude tuples in GIS services
.... For example, my hometown of Eugene, Oregon is at approximately N 44.1, W 123.1. If in maps.google.com I enter 44.1 -123.1, it goes to Eugene. If I enter -123.1 44, it tells me it can't find it. Interestingly, though, if I enter 123.1 W 44 N, it figures it out and goes to Eugene, so there is some f...
javascript: Clear all timeouts?
...answered Jan 14 '12 at 4:43
user123444555621user123444555621
123k2323 gold badges101101 silver badges120120 bronze badges
...
Regular Expression: Any character that is NOT a letter or number
... is the simplest one: \D - matches all non digit characters.
var x = "123 235-25%";
x.replace(/\D/g, '');
Results in x: "12323525"
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
...
C# using streams
...sfer the strings to and from the stream as bytes. So
myStreamWriter.Write(123);
will write "123" (three characters '1', '2' then '3') to the stream. If you're dealing with text files (e.g. html), StreamReader and StreamWriter are the classes you would use.
Whereas
myBinaryWriter.Write(123);
w...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...13-Jun-07 03:14:05.335577 INFO g:performance god/multi_index_container.cpp:123 main
RealTime: 0.251333s
Desc: Map删除
./godmulti_index_container.exe 5000000
container: 16 idPersons: 24 namePersons: 24
---------------插入5000000次-----------------
2013-Jun-07 03:41:53.712...