tools

import sys 
import os 

command =sys.argv 
print(command) 
if len(command) > 1 : #Indicate that there are parameters passed in 
cmd1 =command[ 1] 
 if cmd1 == '--help' : 
print( 'This is a help document ' 'This python file explains the role of sys.argv' ) elif cmd1 == 'os' : print( 'The current operating system is %s' %sys.platform) else: print( 'The input command is wrong') else: print( 'Pass in a parameter when running Python' 'eg' 'python xx.py install') # sys.argv # Used to get the parameters passed in when running the python file on the command line, it is a list
 

 

 




 
 



# This list has one parameter by default, which is the current file name