Python statements and syntax

Python statements have some basic rules and special characters:

• # Indicates that the subsequent characters are Python comments.
• Line feed (\ n) is a standard line separator (usually one statement line)
• Backslash (\) to continue the previous line
• Semicolon (;) connects two statements in one row
• Colon (:) separates the header and body of the code block
• Statements (code blocks) are implemented using indentions.
• Separate unused code blocks with different indentions in Depth
• Python files are organized as modules

Variable assignment: A value is not directly assigned to a variable. in Python, objects are passed through reference. The value assignment statement of Python does not return values. The following statements are invalid:

>>> x=1>>> y=(x=x+1

No problem with chain assignment:

>>> x=1>>> y=x=x+1>>>2, 2)

Python does not support pre-and post-auto-increment/auto-increment operations like x ++ or -- x.

Repeated values:

>>> x=y=z=1>>>1>>>1>>>1

You can assign multiple values:

>>> x,y,z=1,2,>>>1>>>2>>>

Usually enclosed in parentheses to enhance code readability:

>>> (x,y,z)=(1,2,>>>1>>>2>>>

Using the multivariate value Assignment Method in Python, You can exchange values of two variables without intermediate variables:

>>> >>> x,y=1,2>>>1>>>2>>> x,y=>>>2>>>1