diy1.py

import random

key = "satedrjseiughvgs使用边吃实现位移替换"
message = input("请输入：")
key_message = ""

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)