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Python字符串替换实例分析

WBOY
Release: 2016-06-06 11:16:32
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本文实例讲述了Python字符串替换的方法。分享给大家供大家参考。具体如下:

单个字符替换

s = 'abcd'
a = ["a", "b", "c"]
b = ["c", "d", "e"]
import string
s.translate(string.maketrans(''.join(a),''.join(b)))
print s
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输出结果为:abcd

字符串替换,改善版

s = "hello, i'm mouren, hehe~~,hehe~~mourenmouren"
a = ["mouren", "hehe"]
b = ["mr", "hoho"]
import re
dic = dict(zip(a,b))
pattern = re.compile('(' + '|'.join(a) + ')')
s = pattern.sub(lambda a:dic[a.group()], s)
print s
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输出结果为:hello, i'm mr, hoho~~,hoho~~mrmr

希望本文所述对大家的Python程序设计有所帮助。

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