IntroductionIn the field of business, to customer deployment projects, three projects to be integrated together, which results in different data formats, the path of the slash and backslash caused a lot of problems.Check out this information, here
here is a little bit of experience:For the following two reasons, using backslashes in regular expressions creates a double-conversion problem.(1), when Python handles the string itself, the backslash is used to escape the character(2), regular
PHP extension text processing -- PCRE regular expression syntax 3 -- escape sequence (backslash) backlash has multiple usage. First, if it is followed by a non-alphanumeric character, it indicates that the special meaning represented by this
1 used in the macro definition:
#define CV_ARE_SIZES_EQ (MAT1, mat2) \
((mat1)->rows = = (MAT2)->rows && (mat1)->cols = = (MAT2)-> Cols
2 used in printf, sometimes the statement in printf is too long, need to be split, then use the
Reference symbols protect special metacharacters and parameter extensions in the parser using 3 ways: backslash (\), single quotation mark ('), double quotation mark ("").Single and double quotes must be matched to protect special metacharacters and
Reference symbols protect special metacharacters and parameter extensions in the parser using 3 ways: backslash (\), single quotation mark ('), double quotation mark ("").Single and double quotes must be matched to protect special metacharacters and
How do you write regular expressions to match 1 backslashes in a string? "\ \" is that all right? Try to know that the RE module throws an exception, because "\" is a backslash, for the regular expression parser, is an escape character, but the back
How to interpret quotation marks in Unix Shell
Shell can recognize four different types of leading characters: single quotes character 'double quotation marks character "backslash character \ backquotes character '1. Single quotes ('')
Howard @ 0
1. Single quotes ('')
# Grep Susan phonebookSusan Goldberg 403-212-4921Susan Topple 212-234-2343If we want to search for Susan Goldberg, we cannot directly use the grep Susan Goldberg phonebook command. grep regards Goldberg and phonebook as files
[Go] forward slash, backslash, and python slash in python
Address: http://www.cnblogs.com/followyourheart1990/p/4270566.html
First, "/" is a forward slash and "\" is a backslash. It can be recorded as a forward slash. In general, a forward slash/is
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