Python-Basic data types

Simple data types and assignments

Variables do not need to be declared

Python variables do not need to be declared, you can enter directly:

>>>a = 10

Then your memory has a variable a, its value is 10, its type is an integer (integer). You don't need to make any special statements before, and data types are automatically determined by Python.

>>>print a>>>print Type (a)

Then there will be the following output:

10

Here, we learned a built-in function type () to query the type of the variable.

Reclaim variable names

If you want a to store different data, you do not need to delete the original variable can be directly assigned value.

>>>a = 1.3>>>print A,type (a)

will have the following output

1.3

We see another use of print, that is, print followed by multiple outputs, separated by commas.

Basic data types

a=10         # int integer a=1.3        # float floating point number a=true       # True (true/false) a= ' hello! '   # string

These are the most commonly used data types, and you can use double quotes for strings.

(There are also scores, characters, complex numbers and other data types that are interesting to learn about)

Summarize

Variables do not need to be declared, they do not need to be deleted and can be recycled directly.

Type (): Query data type

Integer, floating-point, Truth, String

