Python: 每日一题 34

lovesword

1. def get_longest(list_,k):
   
2.     list_.sort(cmp=None, key=lambda x:len(x), reverse=True)
   
3.     if len(list_) == 0 or k > len(list_) or k <= 0 :
   
4.         return ""
   
5.     return ''.join(list_[0:k])
   
6. list_= ["zone", "abigail", "theta", "form", "libe", "zas"]
   
7. k=2
   
8. print get_longest(list_,k)

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