大约有 29,000 项符合查询结果(耗时:0.0535秒) [XML]

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Grouping functions (tapply, by, aggregate) and the *apply family

...se *apply functions (from the intro to plyr document from the plyr webpage http://had.co.nz/plyr/) Base function Input Output plyr function --------------------------------------- aggregate d d ddply + colwise apply a a/l aaply / alply by ...
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event.returnValue is deprecated. Please use the standard event.preventDefault() instead

... I found that using the latest version will fix this problem: http://code.jquery.com/jquery-git.js share | improve this answer | follow | ...
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What is the Sign Off feature in Git for?

...ff-by: Project Maintainer <project.maintainer@example.com> Source: http://gerrit.googlecode.com/svn/documentation/2.0/user-signedoffby.html share | improve this answer | ...
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Is there a function that returns the current class/method name? [duplicate]

...e by using it. Here you will find an exhaustive description of the API: http://msdn.microsoft.com/en-us/library/system.reflection.aspx If you don't feel like looking through that entire library here is an example I cooked up: namespace Canvas { class Program { static void Main(string[] ...
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Python: TypeError: cannot concatenate 'str' and 'int' objects [duplicate]

...) b = int(b) c = a + b print "a + b as integers: %d" % c I found this on http://freecodeszone.blogspot.com/ share | improve this answer | follow | ...
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Is there any way I can define a variable in LaTeX?

... just use \newCommandName rather than \newCommandName{}. For more detail, http://www.math.tamu.edu/~harold.boas/courses/math696/why-macros.html share | improve this answer | ...
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How to drop unique in MySQL?

... for that ALTER TABLE `products` DROP INDEX `PRIMARY`; Code Taken from: http://chandreshrana.blogspot.in/2015/10/how-to-remove-unique-key-from-mysql.html share | improve this answer | ...
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how to check and set max_allowed_packet mysql variable [duplicate]

...ing: SET GLOBAL max_allowed_packet=16777216; You can read about it here http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html EDIT The [mysqld] is necessary to make the max_allowed_packet working since at least mysql version 5.5. Recently setup an instance on AWS EC2 with Drupal and So...
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How do I get the value of a textbox using jQuery?

...n and needing a plugin, the validation plugin may help you, its located at http://bassistance.de/jquery-plugins/jquery-plugin-validation/, it comes with a e-mail rule as well. share | improve this a...
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HTML 5 strange img always adds 3px margin at bottom [duplicate]

...nd of middle, personally. img { vertical-align: middle; } jsFiddle: http://jsfiddle.net/fRpK6/1/ share | improve this answer | follow | ...