大约有 9,000 项符合查询结果(耗时:0.0203秒) [XML]

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How do I use floating-point division in bash?

...divide two image widths in a Bash script, but bash gives me 0 as the result: 18 Answers ...
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Force SSL/https using .htaccess and mod_rewrite

How can I force to SSL/https using .htaccess and mod_rewrite page specific in PHP. 9 Answers ...
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Why not use java.util.logging?

For the first time in my life I find myself in a position where I'm writing a Java API that will be open sourced. Hopefully to be included in many other projects. ...
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Search for executable files using find command

What type of parameter/flag can I use with the Unix find command so that I search executables? 10 Answers ...
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How do I add a password to an OpenSSH private key that was generated without a password?

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NOW() function in PHP

Is there a PHP function that returns the date and time in the same format as the MySQL function NOW() ? 20 Answers ...
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Set every cell in matrix to 0 if that row or column contains a 0

Given a NxN matrix with 0s and 1s. Set every row that contains a 0 to all 0 s and set every column that contains a 0 to all 0 s. ...
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Splitting string into multiple rows in Oracle

I know this has been answered to some degree with PHP and MYSQL, but I was wondering if someone could teach me the simplest approach to splitting a string (comma delimited) into multiple rows in Oracle 10g (preferably) and 11g. ...
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What's the difference between lapply and do.call?

I'm learning R recently and confused by two function: lapply and do.call . It seems that they're just similar to map function in Lisp. But why are there two functions with such a different name? Why doesn't R just use a function called map ? ...
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Create list of single item repeated N times

I want to create a series of lists, all of varying lengths. Each list will contain the same element e , repeated n times (where n = length of the list). ...