Python Beginner's essays

Python Common commands:

1.python or Python3 Open the interactive Python interpreter

2.python hello.py Run a python script from the command prompt

Interactive Python interpreter common commands: Eixt () exit

Python Common syntax:

1.print (' Hello word ') Note: python2 supports print ' Hello World ', but Python3 does not support

The 2.# comment indicates that the line is a comment

3.\ ' represent ' \ is an escape character

4.100000000000000000L is right in Python, but cannot contain L in Python3

The 5.STR,REPR function converts a Python value to a string, repr can display L for long integers

6.input assumes that the user entered a valid expression, while Raw_input is the default string

7. "'" contains characters that can be written across lines

8. The original string starts with R and is equivalent to @ in C #

9.Unicode string prefixed with u

Python Beginner's essays