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nice 如果不用递归就更好了

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随风落叶残

#1 Created at ... [Delete] [Delete and Lock User] 
# -*- coding: utf-8 -*-

def trim(s):
    l=len(s)
    print(l)
    if(s==''):
        return s
    if(s[0]=='*'):
        return(trim(s=s[1:l]))
    if(s[l-1]=='*'):
        return(trim(s=s[0:l-1]))
    if((s[0]!='*') & (s[l-1]!='*')):
        print(s)
        return s

随风落叶残

#2 Created at ... [Delete] [Delete and Lock User]

把*改成空格

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