python第17篇之-sys模块使用举例

#!/usr/bin/python#filename using_sys.pyimport sysprint('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.pyThe 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