大约有 44,000 项符合查询结果（耗时：0.0496秒） [XML]
Why does “_” (underscore) match “-” (hyphen)?
...rary number of characters (including zero characters).
(From section 3.3.4.7. Pattern Matching in the MySQL documentation.)
If you want to use the underscore in like as a literal, you have to escape it:
select * from a where name like '%taz\_manual%.pdf%';
...
Stream.Seek(0, SeekOrigin.Begin) or Position = 0
...
https://referencesource.microsoft.com/#mscorlib/system/io/memorystream.cs,482
The cost is almost identical (3 ifs and some arithmetics). However this is only true for jumping to absolute offsets like Position = 0 and not relative offsets like Position += 0, in which case Seek seems slightly bette...
Editing legend (text) labels in ggplot
...blue", "red")) +
theme_bw() +
theme(axis.text.x = element_text(size = 14), axis.title.x = element_text(size = 16),
axis.text.y = element_text(size = 14), axis.title.y = element_text(size = 16),
plot.title = element_text(size = 20, face = "bold", color = "darkgreen"))
this resul...
How to access pandas groupby dataframe by key
...:
In [21]: gb.get_group('foo')
Out[21]:
A B C
0 foo 1.624345 5
2 foo -0.528172 11
4 foo 0.865408 14
Note: This doesn't require creating an intermediary dictionary / copy of every subdataframe for every group, so will be much more memory-efficient that creating the naive d...
Adding services after container has been built
...
huysentruitw
24.1k88 gold badges7171 silver badges114114 bronze badges
answered Feb 15 '11 at 20:47
Peter Lillevold...
What is 'YTowOnt9'?
...
564
It seems to be a PHP-serialized empty array, base 64 encoded.
$ base64 -D <<< 'YTowOnt...
how to view the contents of a .pem certificate
...
143
Use the -printcert command like this:
keytool -printcert -file certificate.pem
...
Generate URL in HTML helper
...itrov
930k250250 gold badges31503150 silver badges28432843 bronze badges
2
...