python去掉字符串中重复字符的⽅法
复制代码代码如下:
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
字段字符串去重复foo = "mppmt"
print "".join(OrderedDict.fromkeys(foo))
printing
mpt

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