大约有 38,000 项符合查询结果（耗时：0.0404秒） [XML]
Convert String to double in Java
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edited Apr 24 '11 at 9:24
answered Apr 24 '11 at 9:14
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How can I create a Set of Sets in Python?
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answered May 9 '11 at 0:18
a3nma3nm
7,50155 gold badges2525 silver badges3737 bronze badges
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Check that an email address is valid on iOS [duplicate]
... BOOL stricterFilter = NO; // Discussion http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
NSString *stricterFilterString = @"^[A-Z0-9a-z\\._%+-]+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2,4}$";
NSString *laxString = @"^.+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2}[A-Za-z]*$";
NSString *emailReg...
Quickest way to compare two generic lists for differences
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edited Sep 5 '19 at 9:55
answered Oct 9 '12 at 8:31
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Remote debugging a Java application
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edited Aug 9 '15 at 2:44
answered Jun 10 '09 at 12:47
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Extract a regular expression match
... adds a few that are missing:
library(stringr)
str_locate("aaa12xxx", "[0-9]+")
# start end
# [1,] 4 5
str_extract("aaa12xxx", "[0-9]+")
# [1] "12"
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How to check if hex color is “too black”?
...t blue
var luma = 0.2126 * r + 0.7152 * g + 0.0722 * b; // per ITU-R BT.709
if (luma < 40) {
// pick a different colour
}
EDIT
Since May 2014 tinycolor now has a getBrightness() function, albeit using the CCIR601 weighting factors instead of the ITU-R ones above.
EDIT
The resulting lum...
How to kill zombie process
...ram in the foreground (a daemon program), and then I killed it with kill -9 , but I get a zombie remaining and I m not able to kill it with kill -9 . How to kill a zombie process?
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Copying PostgreSQL database to another server
...nd one is from remote to local. More -> https://www.postgresql.org/docs/9.6/app-pgdump.html
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