Python Basics "Second piece" Python operation mode

One Interactive mode

1 #python2 3Python 2.6.6 (r266:84292, Jan 22 2014, 09:42:36)4 5[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux26 7Type" Help","Copyright","credits" or "License"  forMore information.8 9>>>

As shown above:

where ">>>" is the python interactive command line here directly enter the code to get results

Cases:

Input 2 python operation results

1 >>>1+123 2

Print "This is python! "Prints the output string

Print ' This is python! '   is python! exit Python "exit ()">>> exit ()

Second, the text mode

The so-called text pattern is actually writing the code into a file and then executing it in Python.

To edit a file, enter the following code:

  [[email protected]_server py]#   vim py   2   print   '  

* (Every time you execute a script, it will knock Python to perform the feeling is much more simple, just specify the Python bin path in the file so that each execution will not have to hit Python) *

Of course first determine your python's bin path

View Python command path

which python/usr/bin/python

Python is specified in the file

[Email protected]_server py] # Vim Pytest # !/usr/bin/python Print ' This is python ' Print ' 100+200= ', 100+200 execution results [[email protected]_server py]#  ./pytest   is python100+200= 300

Three, two ways each have advantages and disadvantages

1. Interactive mode

Pros: Get results quickly

Cons: Exit does not save

For short Code testing

2. Text mode

Pros: Code can be saved

Cons: Inconvenient operation

For complex code programming

Python Basics "Second piece" Python operation mode