RT,看下面的例子,
>>>set('cheeseshop')
set(['c','e','h','o','p','s'])
>>>set('shop')
set(['h','s','o','p'])
>>> set('01234')
set(['1', '0', '3', '2', '4'])
>>> set('1234')
set(['1', '3', '2', '4'])
这个怎么排的啊??
参考资料:http://blog.csdn.net/sharkw/archive/2007/12/14/1937334.aspx