def sort_lists(lists, sord, idx):
if sord == 'desc':
lists.sort(key=lambda x:x[idx], reverse=True)
else:
lists.sort(key=lambda x:x[idx])
return lists
lists = [['cd','ab'],['ef','ac']]
sort_lists(lists,'desc',1)
print lists
# 输出结果
>>>
[['ef', 'ac'], ['cd', 'ab']]
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