| 点"." | Matches any character.(单个字符匹配) |
| 星"*" | Character to the left of asterisk in the expression should match 0 or more times. For example "be*" matches "b", "be" and "bee". |
一个小技巧：匹配若干多个字符，可以用".*"(点+星)
比如FUNC.*c.*_lot_qty匹配： FUNCTION check_lot_qty
Ps:Ultraedit的正则表达式更简单些，一个星就可以匹配任意多个字符
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