????????????????

???????е?shell??????????python?????????????????????print 'Hello World'?????Enter???????????????????????Hello World??

????Windows????????????????????PATH???????????????????????????????????????????????IDLE????IDLE????????????????д????????->????->Python 2.3->IDLE(Python GUI)??Linux???????????IDLE??

???>>>???????Python???????????

??3.1 ???????????Python??????

$ python
Python 2.3.4 (#1, Oct 26 2004, 16:42:40)
[GCC 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> print 'hello world'
hello world
>>>

???Python?????????????????????????????????????Python ??? ?????????print?????????????????????????????????????????????Hello World????????????????????

??????Python?????
???????????Linux/BSD shell???????Ctrl-d?????????????????Windows???????У???Ctrl-z???Enter??