一个密码用符号来代替单词，短语或者句子。想要解读一个真正的密码信息，你必须有一个密码本。

A code USES symbols to replace words, phrases, or sentences. To read the message of a real code, you must have a code book.

youdao

一个密码用符号来代替单词，短语或者句子。想要解读一个真正的密码信息，你必须有一个密码本。

A code USES symbols to replace words, phrases, or sentences. To read the message of a real code, you must have a code book.

youdao