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 = input("内容")
a = ""
# 请使用私钥ky，对message进行加密
for i in message:
    str1 = i
    str2 = random.choice(key)
    str3 = random.choice(key)
    text = str1 + str2 + str3
    a = text + a
z = list(a)
y = len(a)
z.insert(random.randint(0,y),"gdfjdlkzhugusuhd")
a = "".join(z)
print(a)