3. Boolean and List

Boolean 
false false 0 
to true True 1 

List 
[] empty list 
names = [ "Xingxing", "Xiaojia", "Xiaoming", "Zhao", "SB"] 
type (names) type <class list> 
the subscripts stored and value name [1] = "xiaojia" 

by 
inserting 
names = [ "Xingxing", "Xiaojia", "Xiaoming", "Zhao", "SB"] 
names.insert (. 3, "LAN") 

is added 
names.append () appending 
the number of elements 

names.count ( "sb") sb number of 

puncturing 
del names [1] 

to change 
names [-1] = "xiangsihan" 

check 
"xiangheng" in names 

check deleted with 
del names [names.index ( "SB")] 
index () to find the corresponding element of the index, and returns the index, del delete 

names.index () element index 
names.pop () to delete the last value and return value to be deleted 
names.extend () to expand 
names.reverse () reverse 
names.sort () to sort