diy4.py

import random

# 私钥
key = "abcdefgh使用python实现简单的位移替换加密，制作密码机关真是太好玩了哈哈哈！"
# 要加密语句
message = "诺依，周末一起去看动漫展吧！"
# 最终加密后的语句
key_message = ""
# 干扰字符
noise = "port:@#$%^&"
for i in message:
    str1 = i
    str2 = random.choice(key)
    str3 = random.choice(key)
    text = str1+str2+str3
    key_message = key_message + text

list_message = list(key_message)

index = random.randint(0, len(key_message))
list_message.insert(index, noise)

result_message = "".join(list_message)
print(result_message)