Sth about Python 03---This is a

'''

In this small progrom there are some tips as follows.

1.Attention the block of 'if-- elif-- else',or they will notice u a error

2.The function return what u want ,but mustnot use return s

'''

def shut_down(s):

#if u add 'rerutn s'here,it will have a error,there is no s return

 if s == "yes":
    return "Shutting down"
 elif s == "no":
    return "Shutdown aborted"
 else:
    return "sorry"