大约有 40,000 项符合查询结果（耗时：0.0586秒） [XML]
Find the max of two or more columns with pandas
...ow that it is a little faster to call numpy functions on the underlying .to_numpy() (or .values for <0.24) array instead of directly calling the (cythonized) functions defined on the DataFrame/Series objects.
For example, you can use ndarray.max() along the first axis.
# Data borrowed from @DS...
Permission denied on accessing host directory in Docker
.../db:/var/db:z rhel7 /bin/sh
Will automatically do the chcon -Rt svirt_sandbox_file_t /var/db
described in the man page.
Even better, you can use Z.
docker run -v /var/db:/var/db:Z rhel7 /bin/sh
This will label the content inside the container with the exact MCS
label that the c...
Strip whitespace from jsp output
...s whitespace left by taglibs like JSTL and scriptlets. If you want to trim ALL whitespace from HTML, then head for a different solution. You can find a filter example here: balusc.blogspot.com/2007/12/whitespacefilter.html
– BalusC
Apr 19 '10 at 13:27
...
Insert a line break in mailto body
...(along with some extra spacing). Are you using a mail client that doesn't allow HTML formatting?
share
|
improve this answer
|
follow
|
...
Retrieving Property name from lambda expression
...rce parameter is used so the compiler can do type inference on the method call. You can do the following
var propertyInfo = GetPropertyInfo(someUserObject, u => u.UserID);
share
|
improve this ...
JavaScript Date Object Comparison
...answered Sep 30 '11 at 6:50
gion_13gion_13
38.3k99 gold badges9090 silver badges101101 bronze badges
...
How to make an unaware datetime timezone aware in python
...ize(unaware)
assert aware == now_aware
For the UTC timezone, it is not really necessary to use localize since there is no daylight savings time calculation to handle:
now_aware = unaware.replace(tzinfo=pytz.UTC)
works. (.replace returns a new datetime; it does not modify unaware.)
...
Seeking useful Eclipse Java code templates [closed]
...error(e) ;
}
catch (IOException e) {
logger.error(e) ;
} finally {
if(in != null) in.close();
}
${cursor}
UPDATE: The Java 7 version of this template is:
${:import(java.nio.file.Files,
java.nio.file.Paths,
java.nio.charset.Charset,
java.io...
How to add 'ON DELETE CASCADE' in ALTER TABLE statement
...age and navigate to the table that has the foreign key you want to update, all you have to do is click the Relational view located in the Structure tab and change the On delete select menu option to Cascade.
Image shown below:
...
Difference between local and global indexes in DynamoDB
...ndary index is
considered "global" because queries on the index can span all of the
data in a table, across all partitions.
Local secondary index — an index that has the same hash key as the
table, but a different range key. A local secondary index is "local"
in the sense that every p...