大约有 47,000 项符合查询结果（耗时：0.0635秒） [XML]
How do I break out of a loop in Perl?
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Alexander Roskamp
2766 bronze badges
answered Nov 19 '08 at 20:23
Zain RizviZain Rizvi
20.7k1717...
Copy table without copying data
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answered Dec 2 '09 at 17:28
AndomarAndomar
210k4141 gold badges330330 silver badges364364 bronze badges
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What does the (unary) * operator do in this Ruby code?
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271
The * is the splat operator.
It expands an Array into a list of arguments, in this case a lis...
Android Studio could not find any version that matches com.android.support:appcompat-v7:+
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edited Aug 2 '14 at 4:21
Halil
1,3311616 silver badges3333 bronze badges
answered Dec 29 ...
MySQL - ORDER BY values within IN()
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233
SELECT id, name
FROM mytable
WHERE name IN ('B', 'A', 'D', 'E', 'C')
ORDER BY FIELD(name, 'B',...
SQL query to find record with ID not in another table
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216
Try this
SELECT ID, Name
FROM Table1
WHERE ID NOT IN (SELECT ID FROM Table2)
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How can I brew link a specific version?
...w switch <formula> <version>
Example:
brew switch mysql 5.5.29
You can find the versions installed on your system with info.
brew info mysql
And to see the available versions to install, you can provide a dud version number, as brew will helpfully respond with the available versi...
Why does multiprocessing use only a single core after I import numpy?
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edited Oct 22 '13 at 22:44
answered Mar 26 '13 at 15:36
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Ruby replace string with captured regex pattern
...ote that you can index a string with a regex:
"foo"[/oo/]
#=> "oo"
"Z_123: foobar"[/^Z_.*(?=:)/]
#=> "Z_123"
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How to send only one UDP packet with netcat?
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205
If you are using bash, you might as well write
echo -n "hello" >/dev/udp/localhost/8000
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