Python Learning Note-day6-"SYS module, how to import a module"

Record the usage of the SYS module and look at things that are easy to forget, but easily forgotten.

One, sys module

1, the common use method

2. How to import python files from other modules

3. Import the Python module in the same directory

4. Two ways to import

5. Put the module you want to import into any directory in the python environment variable, but it's too cumbersome.

6, add the directory of the import module to the Python environment variable, you can

Ii. usage of SYS.ARGV

1, SYS.ARGV significance

2, to determine the legitimacy of the parameters executed from the command line, sample code

Python Learning Note-day6-"SYS module, how to import a module"