大约有 47,000 项符合查询结果（耗时：0.0669秒） [XML]
How to convert an int to a hex string?
...gave, I think one of these snippets shows what you want.
>>> chr(0x65) == '\x65'
True
>>> hex(65)
'0x41'
>>> chr(65) == '\x41'
True
Note that this is quite different from a string containing an integer as hex. If that is what you want, use the hex builtin.
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Using .otf fonts on web browsers
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edited Sep 20 at 14:02
answered Jul 14 '10 at 10:20
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Naming convention for unique constraint
...en a unique constraint and a unique index is INCLUDE columns.
Edit: Feb 2013. Since SQL Server 2008, indexes can have filters too. Constraints can not
So, it comes down to one of
stick with UQ as per the rest of the SQL-using planet
use IK for unique indexes (IKC for clustered too) to be consis...
Delete specific line number(s) from a text file using sed?
...
If you want to delete lines 5 through 10 and 12:
sed -e '5,10d;12d' file
This will print the results to the screen. If you want to save the results to the same file:
sed -i.bak -e '5,10d;12d' file
This will back the file up to file.bak, and delete the given ...
LINQ Orderby Descending Query
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edited Apr 30 '16 at 21:56
Bakudan
17k99 gold badges4545 silver badges6969 bronze badges
a...
What is the difference between location list and quickfix list in vim
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110
The location list is local to the current window so you can have as many location lists as windo...
How do I parse a URL query parameters, in Javascript? [duplicate]
...).forEach(function(part) {
var item = part.split("=");
result[item[0]] = decodeURIComponent(item[1]);
});
return result;
}
actually it's not that simple, see the peer-review in the comments, especially:
hash based routing (@cmfolio)
array parameters (@user2368055)
proper use of decod...
String.replaceAll single backslashes with double backslashes
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207
The String#replaceAll() interprets the argument as a regular expression. The \ is an escape cha...
Run a callback only if an attribute has changed in Rails
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200
Rails 5.1+
class Page < ActiveRecord::Base
before_save :do_something, if: :will_save_chan...
Where to define custom error types in Ruby and/or Rails?
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+50
For Gems
I have seen many times that you define exceptions in this way:
gem_dir/lib/gem_name/exceptions.rb
and defined as:
mod...