大约有 20,000 项符合查询结果（耗时：0.0410秒） [XML]
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...lty one, you would get in interactive mode:
Query OK, 99 rows affected (0.04 sec)
Records: 100 Duplicates: 1 Warnings: 0
As you see: No Warnings! This behavior is even wrongly described in the official Mysql Documentation.
If your script needs to be informed, if some records have not been added ...
How is a CRC32 checksum calculated?
... x2 + x + 1
Wikipedia
CRC calculation
Or in hex and binary:
0x 01 04 C1 1D B7
1 0000 0100 1100 0001 0001 1101 1011 0111
The highest term (x32) is usually not explicitly written, so it can instead be represented in hex just as
0x 04 C1 1D B7
Feel free to count the 1s and 0s, but yo...
Wget output document and headers to STDOUT
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Try the following, no extra headers
wget -qO- www.google.com
Note the trailing -. This is part of the normal command argument for -O to cat out to a file, but since we don't use > to direct to a file, it goes out to the shell. You can use -qO- or -qO -.
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Get current URL with jQuery?
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http://www.refulz.com:8082/index.php#tab2?foo=789
Property Result
------------------------------------------
host www.refulz.com:8082
hostname www.refulz.com
port 8082
protocol http:
pathname index.php
hre...
Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
Recursively remove files
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find /var/www/html \( -name '.DS_Store' -or -name '._*' \) -delete
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Does anyone beside me just NOT get ASP.NET MVC? [closed]
...ly remain, but continue to be developed for...
http://haacked.com
http://www.misfitgeek.com
http://rachelappel.com
... and so on...
For those concerned about the route MVC is taking, I'd suggest giving "the guys" your feedback. They appear to be listening so far!
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How to run travis-ci locally
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204
This process allows you to completely reproduce any Travis build job on your computer. Also, yo...
Convert Mercurial project to Git [duplicate]
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answered Apr 16 '13 at 13:04
alexcloozealexclooze
7,55933 gold badges3434 silver badges4141 bronze badges
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Facebook Post Link Image
...e aware that each variation of a URL is cached separately on Facebook, so "www.example.com" is not the same as "example.com". Also, unique capitalization is stored as well, so "ExampleOne.com" is not the same as "exampleone.com". (This led to a lot of confusion between my client and myself when it ...