大约有 40,000 项符合查询结果（耗时：0.0964秒） [XML]
Only read selected columns
...wnload and save the the CSV JDBC driver from this link: http://sourceforge.net/projects/csvjdbc/files/latest/download
> library(RJDBC)
> path.to.jdbc.driver <- "jdbc//csvjdbc-1.0-18.jar"
> drv <- JDBC("org.relique.jdbc.csv.CsvDriver", path.to.jdbc.driver)
> conn <- dbConnect(d...
In Python, how do I use urllib to see if a website is 404 or 200?
... or None if the URL is no HTTP URL.
>>> a=urllib.urlopen('http://www.google.com/asdfsf')
>>> a.getcode()
404
>>> a=urllib.urlopen('http://www.google.com/')
>>> a.getcode()
200
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...
Check image width and height before upload with Javascript
...
};
img.src = objectUrl;
}
});
Demo: http://jsfiddle.net/4N6D9/1/
I take it you realize this is only supported in a few browsers. Mostly firefox and chrome, could be opera as well by now.
P.S. The URL.createObjectURL() method has been removed from the MediaStream interface. T...
MySQL “WITH” clause
...t support common table expressions:
Oracle 9i release 2 and later:
http://www.oracle-base.com/articles/misc/with-clause.php
Microsoft SQL Server 2005 and later:
http://msdn.microsoft.com/en-us/library/ms190766(v=sql.90).aspx
IBM DB2 UDB 8 and later:
http://publib.boulder.ibm.com/infocenter/db2luw/v...
Add table row in jQuery
...ered Oct 4 '08 at 21:49
Luke BennettLuke Bennett
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...
Centering floating divs within another div
...after { clear: both; }
.clearfix { *zoom: 1; }
JSFiddle: http://jsfiddle.net/MJ9yp/
This will work in IE8 and up, but not earlier (surprise, surprise!)
I do not recall the source of this method unfortunately, so I cannot give credit to the original author. If anybody else knows, please post the ...
Programmer-friendly search engine? [closed]
...
Try http://www.symbolhound.com .
This seems to solve your problem. SymbolHound is a search engine that doesn't ignore symbols or special characters in web queries like google does. It's not a source code search, either. Hope that help...
Hidden features of Android development?
...ation for them. This is the best information I could find:
http://escomic.net/217
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answered Mar 24 '10 at 17:12
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HashMap with multiple values under the same key
...sing a tuple
// you'll have to write or download a Tuple class in Java, (.NET ships with one)
// create our map
Map<String, Tuple2<Person, Person> peopleByForename = new HashMap<>();
// populate it
peopleByForename.put("Bob", new Tuple2(new Person("Bob Smith",
...
How to compare only date components from DateTime in EF?
...ime certainly seem to be the way to go these days (it became available in .NET 4 which was released the year after this question was asked).
– Fredrik Mörk
Oct 3 '13 at 7:30
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