本文主要是介绍string模块2 - maketrans(),希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
通过translate()函数进行转换,生成一个合适转换列表。这个函数有两个参数,第一个参数的每个字符将被映射到第二个参数的对应位置。两个参数必须有相同的长度。
import string
leet = string.maketrans('abegiloprstz','463611092572')
s = 'The quick brown fox jumped over the lazy dog'
print s
print s.translate(leet)
结果:
The quick brown fox jumped over the lazy dog
Th3 qu1ck 620wn f0x jum93d 0v32 7h3 142y d06
def maketrans(fromstr, tostr):
"""maketrans(frm, to) -> string
Return a translation table (a string of 256 bytes long)
suitable for use in string.translate. The strings frm and to
must be of the same length.
"""
if len(fromstr) != len(tostr):
raise ValueError, "maketrans arguments must have same length"
global _idmapL
if not _idmapL
_idmapL = list(_idmap)
L = _idmapL[:]
fromstr = map(ord, fromstr)
for i in range(len(fromstr)):
L[fromstr[i]] = tostr[i]
return ''.join(L)
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