Posted in Python onFebruary 27, 2014
If order does not matter, you can use "".join(set(foo)) set() will create a set of unique letters in the string, and "".join() will join the letters back to a string in arbitrary order. If order does matter, you can use collections.OrderedDict in Python 2.7: from collections import OrderedDict foo = "mppmt" print "".join(OrderedDict.fromkeys(foo)) printing mpt
python去掉字符串中重复字符的方法
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