diy4.py

import random

# 私钥
key = "abcdefgh使用编程实现位移替换加密，制作密码机关真是太好玩了哈哈！"
# 要加密语句
message = "诺依，周末一起去看动漫展吧！"
key_message=""
noise="djkhfkjsdh122"
list_message=list(key_message)
list_message.insert(5,noise)
index+random.randint(0,len(key_message))
list_message.insert(index,noise)
result_message="".join(list_message)
print(result_message)