What is a data type

Simple understanding, containers for storing data

Data types are necessary attributes for each programming language. Only by assigning clear data types to data can computers process data. Therefore, it is necessary to use data types correctly. Data types are similar in different languages, but the specific expression methods vary

The following are commonly used data types for Python programming:

• Number (number)
• String (String)
• List
• Tuple
• Set
• Dictionary

Immutable data (3 pieces): Number, String, Tuple

variable data (3): List, Dictionary, Set

You can use the python built-in function type() function to view the data type

int_1 = 12
print(int_1, type(int_1))
float_1 = 12.33
print(float_1, type(float_1))
complex_1 = 2 + 7j
print(complex_1, type(complex_1))
bool_1=True
print(bool_1,type(bool_1))
str_1='fengfeng'
print(str_1,type(str_1))
list_1=[]
tuple_1=()
dict_1={}
set_1=set()                          #Creating empty collections is a bit special
print(list_1,type(list_1))
print(tuple_1,type(tuple_1))
print(dict_1,type(dict_1))
print(set_1,type(set_1))

12.33
(2+7j)
True
fengfeng
[]
()
{}
set()

Immutable data (3 pieces): Number type, String, Tuple