python learning 8 (list)

List

The relationship between lists and variables:
Variables can only have one element, and lists have multiple elements.
It is equivalent to arrays in other languages .
The list also has three attributes: id, type, and value.

lst=['hello',85,55]
print(id(lst))
print(type(lst))
print(lst)

Result display:

List definition method:

1. 【】Square brackets
2. list（）

lst=['hello',85,55]
print(lst)
a=list('hello')
print(a)

Result display:

characteristics of the list:

• List elements are sorted in order
• Only one element of subscript mapping
• Can store duplicate data
• Different types can be mixed
• Dynamically allocate and reclaim memory according to demand

a=list('hello')
print(a)
print(a[0],a[2])

Result display: