大约有 47,000 项符合查询结果（耗时：0.0511秒） [XML]
Bootstrap 3 offset on right not left
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Ross AllenRoss Allen
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2
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MySql: Tinyint (2) vs tinyint(1) - what is the difference?
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98
It means display width
Whether you use tinyint(1) or tinyint(2), it does not make any differenc...
git ahead/behind info between master and branch?
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edited Dec 5 '18 at 8:44
Steve Chambers
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Which rows are returned when using LIMIT with OFFSET in MySQL?
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It will return 18 results starting on record #9 and finishing on record #26.
Start by reading the query from offset. First you offset by 8, which means you skip the first 8 results of the query. Then you limit by 18. Which means you conside...
What's the magic of “-” (a dash) in command-line parameters?
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edited Nov 8 '11 at 3:15
answered Nov 8 '11 at 3:09
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In c++ what does a tilde “~” before a function name signify?
...See https://www.ibm.com/support/knowledgecenter/en/ssw_ibm_i_74/rzarg/cplr380.htm
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Error to run Android Studio
...ist | grep -i jdk
If not, install JDK
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update && sudo apt-get install oracle-java8-installer
After the installation you have to enable the jdk
update-alternatives --display java
Check if Ubuntu uses Java JDK 8
java -version
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How to concatenate strings with padding in sqlite
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387
The || operator is "concatenate" - it joins together the two strings of
its operands.
Fr...
What platforms have something other than 8-bit char?
...d then, someone on SO points out that char (aka 'byte') isn't necessarily 8 bits .
12 Answers
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An efficient way to transpose a file in Bash
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print str
}
}' file
output
$ more file
0 1 2
3 4 5
6 7 8
9 10 11
$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time perl test.pl ...