用于替换文件中的字符的脚本

Question

我在尝试替换文件中的字符时遇到了麻烦。

    #!/usr/bin/env python

with open("crypto.txt","r") as arquivo:
    data =  arquivo.read()
for caracter in data:
    if "a" in data:
        data = data.replace("a","c")
    elif "b" in data:
        data = data.replace("b","d")
    elif "c" in data:
        data = data.replace("c","e")
    elif "d" in data:
        data = data.replace("d","f")
    elif "e" in data:
        data = data.replace("e","g")
    elif "f" in data:
        data = data.replace("f","h")
    elif "g" in data:
        data = data.replace("g","i")
    elif "h" in data:
        data = data.replace("h","j")
    elif "i" in data:
        data = data.replace("i","k")
    elif "j" in data:
        data = data.replace("j","l")
    elif "k" in data:
        data = data.replace("k","m")
    elif "l" in data:
        data = data.replace("l","n")
    elif "m" in data:
        data = data.replace("m","o")
    elif "n" in data:
        data = data.replace("n","p")
    elif "o" in data:
        data = data.replace("o","q")
    elif "p" in data:
        data = data.replace("p","r")
    elif "q" in data:
        data = data.replace("q","s")
    elif "r" in data:
        data = data.replace("r","t")
    elif "s" in data:
        data = data.replace("s","u")
    elif "t" in data:
        data = data.replace("t","v")
    elif "u" in data:
        data = data.replace("u","w")
    elif "v" in data:
        data = data.replace("v","x")
    elif "w" in data:
        data = data.replace("w","y")
    elif "x" in data:
        data = data.replace("x","z")
    print data

该脚本读取一个名为crypto的txt文件，并开始根据上述语句替换字符。文件里面写着aloha这个词。

这是我每次运行脚本时得到的结果

clohc
elohe
glohg
ilohi
iloji
klojk

我该如何解决？

Answer 1

python的 string translate

怎么样？

sudo service nginx restart

它与perl import string with open("crypto.txt","r") as arquivo: data = arquivo.read() out = data.translate(string.maketrans("abcdefghijklmnopqrstuvw","defghijklmnopqrstuvwxyz")) print out 函数直接相同。它的工作原理如下

图片描述tr转换为A，T转换为C，G转换为G和C转换到T

  

然后不要混淆字符串翻译和字符串替换

字符串替换，替换整个单词。字符串翻译，由每个字符替换。