#!/usr/bin/python
#filename using_sys.py

import sys
print('The command line arguments are:')

for i in sys.argv:
    print(i)
print('\n\nThe PYTHONPATH is',sys.path,'\n')



结果:

~/Note/python # ./1using_sys.py 
The command line arguments are:
./1using_sys.py


The PYTHONPATH is ['/root/Note/python', '/usr/lib64/python34.zip', '/usr/lib64/python3.4', '/usr/lib64/python3.4/plat-linux', 
'/usr/lib64/python3.4/lib-dynload', '/usr/lib64/python3.4/site-packages', '/usr/lib/python3.4/site-packages'] 

import 导入模块

引用模块中某一函数时使用 . 点

sys.argv 

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