Python basic Syntax-SYS module

The Python interpreter interacts with the interface

sys.argv

• Command line arguments list, the first element is the path of the program itself

defpost ():Print('post ...')defDownload ():Print('Download ...')ifsys.argv[1]=='Post': Post ()elifsys.argv[1]=='Download': Download ()#cmd, python sys module. PY Post >>>post ...

Sys.exit (N)

• Exit the program, exit normally (0)

Sys.version

• Get version information for Python interpreter

Sys.maxint

• The largest int value

Sys.path

• Returns the search path for the module, using the value of the PYTHONPATH environment variable when initializing

Import  Time Print (Sys.path) sys.path.append () # Find the time module path, if you write the module, you need to add a path

Sys.platform

Import Sys,os if ' Win32 ' :    os.system ('dir')else:    os.system (  'ls')

• Returns the operating system platform name, cross-platform

Sys.stdout.write (' please: ')
val = Sys.stdin.readline () [:-1]

Python basic Syntax-SYS module