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Common Regular Expression symbols'.'default match any character except \ n, if flag Dotall is specified, matches any character, including line break'^'Match the beginning of the character, if you specify the flags MULTILINE, this can also match on (R"^a","\nabc\neee", flags=Re. MULTILINE)'$'Matches the end of a character, or E.search ("foo$","BFOO\NSDFSF", flags=Re. MULTILINE). Group () can also'*'Matches the character preceding the * number 0 or more times, Re.findall ("ab*","Cabb3abcbbac") res

Common Regular Expression symbols'.'default match any character except \ n, if flag Dotall is specified, matches any character, including line break'^'Match the beginning of the character, if you specify the flags MULTILINE, this can also match on (R"^a","\nabc\neee", flags=Re. MULTILINE)'$'Matches the end of a character, or E.search ("foo$","BFOO\NSDFSF", flags=Re. MULTILINE). Group () can also'*'Matches the character preceding the * number 0 or more times, Re.findall ("ab*","Cabb3abcbbac") res

infrared transmission in the 2.4GHz ISM band, and the total data transmission rate is designed as 2mbit/s. Communication between the two devices can be done in a device to device (ad hoc) manner, or in coordination with the base station (base station, BS) or access point (Access Point,ap). In order to obtain good communication quality in different communication environment, the hardware communication mode of CSMA/CA (Carrier Sense Multi access/collision) is adopted. In 1999, two additional ver

, blist = Alist is the passing of the reference, and now all two references point to the same object (address). So one of the changes will affect the other And look at set. ABB = {1, 2, 3}ACC = Abbprint (ID (ABB), ID (ACC)) Acc.add (4) print (ABB) # {1, 2, 3, 4} print (ID (ABB), ID (ACC)) # Equal It is consistent with

()). newinstance (objects[] org);Catching Exceptions:try{ XXXXXXX }catch (Exception e) { yyyyyyyyyy }Enum Type:The value of two enumeration types can be compared directly with "= =". Public classEntry { Public Static voidMain (String args[]) {System.out.println (Size.SMALL.toString ()); System.out.println (Enum.valueof (Size.class, "SMALL")); System.out.println (SIZE.SMALL.GETABB ()); } enumsize{SMALL (S), MEDIUM (M), LARGE (L), Extra_large ("XL"); PrivateSize (String

: : % S/\/4/gc 2. delete unnecessary spaces. To delete unnecessary spaces behind each line, run the following command: : % S/\ s \ + $ // The command specifies that the range is "%", so this will apply to the entire file ." The matching mode of the substitute command is \ S \ + $ ". This indicates one or more (\ +) spaces (\ s) before the end of the line ($ ). The "to" part of the replacement command is empty :"//". In this way, the matching spaces are deleted. 3. matching repetition mode The as

Label: Create DATABASE s2015041--Create a database drop DB XXXXXX--Delete Database use master--using the master database go--link symbol for statement and statement CREATE TABLE ABB (CodeintNotNULL,--column name varchar ( -) notNULL,--column Sexint, Degreedecimal( -,2) notNULL--column) Go insert INTO ABB values (1,'Zhang San',0, About); INSERT into ABB VALUES (2,

!" Response.Write Mid (strtest,17,5) %> Outcome: Today 29. Function minute () Function: Returns a value indicating the Minutes Format: Minute (time) Parameters: Time is the change in time Example lt;% =minute (#12:23:34#)%> Results: 23 30. Function month () Function: Returns a value indicating the month Format: Month (time) Parameters: Time is the date change Example Results: 9 31. Function MonthName () Function: Returns the string (name) of the month. Format: MonthName (date [,

Internal Classic: "The sky is nothing, the air is from it, the disease is never ". This should be an authoritative General principle of health care. The heart should be quiet, the fame and fortune should be light, and the health should be less serious. I have summarized that health care should pay attention to food supplements, medicines supplements, dynamic supplement