1. Create a list of methods
= A [ "A", 123, "ABC", [123]]
# created directly used
b = list("abc")
#list
str, list sequence, sequential, support indexing, slicing
increase:
append
To the list of final surface
insert
The first parameter is inserted into the insertion position index, the second parameter value to be added
extend
Iterative with additional elements, objects may be added if the iterator object is the smallest element in the composition of iterations iterative object is appended to the