try..except

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>>> s = raw_input('Enter something --> ')
Enter something --> Traceback (most recent call last):
  File "<stdin>", line 1, in ?
EOFError

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??????????try..except?????????????????????????????try-???У?????????????????????except-???С?

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#!/usr/bin/python
# Filename: try_except.py

import sys

try:
    s = raw_input('Enter something --> ')
except EOFError:
    print '\nWhy did you do an EOF on me?'
    sys.exit() # exit the program
except:
    print '\nSome error/exception occurred.'
    # here, we are not exiting the program

print 'Done'

????????code/try_except.py??

???

$ python try_except.py
Enter something -->
Why did you do an EOF on me?

$ python try_except.py
Enter something --> Python is exceptional!
Done


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????????try..catch??????????else???????????????????else??佫????С?

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