Python data types and variable note points

Source: Internet
Author: User

1, Python is case-sensitive

2, the application of the Python escape character \ can be used to ensure that special characters within the string can be displayed, such as \ ' can display ', \ "can be displayed"

3, Python is a dynamic language, not a static language, so you do not need to specify the variable type, but you can arbitrarily assign arbitrary variable values, for example

A=123

A= ' abc '

The above two statements are executed sequentially and do not error

4. Storage of variables

A= ' abc '

B=a

A=123

The stored procedure for the above variables is as follows

1. Create the ' ABC ' string first

2. Create a variable and point it to ' ABC '

3. Create a B variable and point it to the string ' abc ' pointed to by a

4. Created 123 integers

5, the point of a has changed to 123 integers

Python data types and variable note points

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