11. The method of claim 1 , wherein the first preset rule includes: returning a corresponding result and using the corresponding result as a first partial regular expression when the first character string satisfies a fourth preset rule.
11. The method of claim 1 , wherein the first preset rule includes: returning a corresponding result and using the corresponding result as a first partial regular expression when the first character string satisfies a fourth preset rule. 12. The method of claim 11 , wherein the fourth preset rule includes: defining a first preset variable; sequentially traversing characters in the first character string; determining whether a respective character in the first character string is a separator; appending the respective character to the first preset variable in response to determining that the respective character is the separator.