\w \w Any single character that is reversed. \w matches any single character that includes an underscore. \s \s Any single character that is reversed. \s matches any single whitespace character: including spaces, tabs, and so on (note: Do not include change and line breaks). \d \d The reverse, matching a non-numeric character. () The order that affects the expression matching (such as C + + parentheses affects the order of expression operations), and is used as the grouping marker for the expression (marker starting from 1) Note: See the example below such as: be? matches "B" or "be", but does not match "bee"
? The character on the left side is matched 0 or 1 times. such as: be+ match "be" or "bee", but do not match "B" + the character on its left side is matched at least once (1 or more times). * The character on its left side is matched to any number of times (0 or more times). For example: matches a single character other than "a" and "B" matches any single non-numeric character
matches any single character except the list. For example: matches "a" or "B" matches any single number matches any single character in the list. | Or an operator that matches the string to the left and right of the expression. For example: e$ matches lines ending with "e" The expression to the left of the line is matched at the end of the row. For example: ^a matches a line beginning with "A" ^ The expression to its right is matched at the top of the row. \ n newline character LF Note: Extended support, regular expressions do not support \ r Carriage return CR Note: Extended support, regular expression does not support
\ t Tab TAB Note: Both the extension and the regular expression support XLS 64-bit Active Directory AJAX Anonymity Application Pool ASP.\ escape Character Furu: to use "\" itself, you should use the "\"
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