字符转换

时间：2010-01-18 来源：angelia_liu

use String.maketrans() Method to translate some strings.

import string

def translate():
    intab='abcdefghijklmnopqrstuvwxyz'
    outtab='cdefghijklmnopqrstuvwxyzab'
    transtab=string.maketrans(intab,outtab)
    f=open("E:\\python challenge\\message.txt","r")
    str=f.read()
    outStr=string.translate(str,transtab)
    f2=open("E:\\python challenge\\trans.txt","w")
    f2.write(outStr)
    f.close()
    f2.close()

if __name__=='__main__':
    translate()

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