互联网上有一些有趣的东西...,我喜欢this one 的简单性(简单的替换密码),所以我借了它并对其进行了一些修改。我还必须编写解码部分,但这很容易;-)
它给出了有趣的结果。
以上是结果...对代码或解码值感兴趣?然后阅读以下内容:
(因为您将收到电子邮件,所以您将拥有密钥......我想在任何电子邮件发送代码中实现它都会相当容易。阅读解码的消息会更加棘手,我想最简单的方法是创建一个 gmail 过滤器来为这些消息分配一个标签,然后从那里编写一个应用程序来使用解码功能读取它们。)
function test(){
var key = "#@&é,?(§è!çà)-_°$*^¨`£ù%=+MPLOKIJUHYGTFRDESZQANBVCXW";
Logger.log(encode(key,'My name is bond, James Bond'));
Logger.log(decode(key,encode(key,'My name is bond James Bond')));
}
function encode(key, message)
// Given : key is a string of the 52 letters in arbitrary order (2 x 26 characters),
// message is the string to be encoded using the key
// Returns: the coded version of message using the substitution key
{
var alphabet, coded, i, ch, index;
alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
coded = "";
for (i = 0; i < message.length; i++) { // for as many letters as there are
ch = message.charAt(i); // access the letter in the message
index = alphabet.indexOf(ch); // find its position in alphabet
if (index == -1) { // if it's not a letter,
coded = coded + ch; // then leave it as is & add
} // otherwise,
else { // find the corresponding
coded = coded + key.charAt(index); // letter in the key & add
}
}
return coded;
}
function decode(key, message){
var alphabet, decoded, i, ch, index;
alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
decoded = "";
for (i = 0; i < message.length; i++) { // for as many letters as there are
ch = message.charAt(i); // access the letter in the message
index = key.indexOf(ch); // find its position in key
if (index == -1) { // if it's not in the key,
decoded = decoded + ch; // then leave it as is & add
} // otherwise,
else { // find the corresponding
decoded = decoded + alphabet.charAt(index);// letter in the alphabet & add
}
}
return decoded;
}