Ordered, elements can be modified
The elements in the list can be numbers, strings, lists, and so on.
Support slicing, slicing results for list Li , Li [3:-1]
Modify Li  = 3 Li [1:3]= [120,90]
Delete del Li  del [3:5], before and after the package
inOperations to determine whether an element is in a collection
list(str)Transfer a string to a list. Only data types that can perform for loops can be converted to a list
str(li) Converting lists to strings
When there are both strings and numbers in the list, only for loops can be used for stitching. If there are only strings in the list, then join method will do.
def append(self, *args, **kwargs) listAdditional character, no return value
def clear(self, *args, **kwargs):Empty string
def copy(self, *args, **kwargs) shallow copy
def count(self, *args, **kwargs) Calculate the number of elements
def extend(self, *args, **kwargs) Batch Addition Required Parameters
def index(self, *args, **kwargs) Find the index location of a value, left first
def insert(self, *args, **kwargs) Insert a value at the specified index location
def pop(self, *args, **kwargs) Gets and deletes the value of an index location by default to the last
remove Delete a value
reverse Current list flip
sort Sort, default from small to large, reverse = True from large to small
Note that strings cannot be modified by slicing
Special list, elements can not be modified, can not be added or deleted, when writing meta-ancestors, add a comma at the end
Can be indexed and sliced
You can do for loops, which are iterative objects.
Strings, lists, tuples can be converted to each other
You can convert a join to a string
Method, count gets the number of occurrences of the specified element in the tuple.
indexGet the location of a value