python的下载、安装与使用(windows环境)

 C:WindowsSystem32>python
 Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit (Intel)] on win32
 Type "help", "copyright", "credits" or "license" for more information.
 >>> 1+2
 3
 >>> exit()
 C:WindowsSystem32>

E:desktoppythonpy_src>gvim hello.py
 E:desktoppythonpy_src>type hello.py
 print 'hello world, python!'

 E:desktoppythonpy_src>python hello.py
 hello world, python!

compile.py
         import py_compile
         py_compile.compile('hello.py')
     python compile.py
        ==> hello.pyc
 

python -O -m py_compile hello.py
        ==> hello.pyo
--------------------------------------------
    E:desktoppythonpy_src>dir /b
    compile.py
    hello.py
    hello.pyc
    hello.pyo

    E:desktoppythonpy_src>python hello.py
    hello world, python!
    E:desktoppythonpy_src>hello.py
    hello world, python!

    E:desktoppythonpy_src>python hello.pyc
    hello world, python!
    E:desktoppythonpy_src>hello.pyc
    hello world, python!

    E:desktoppythonpy_src>python hello.pyo
    hello world, python!
    E:desktoppythonpy_src>hello.pyo
    hello world, python!