diff --git a/diy4.py b/diy4.py
index b309233..1e21c2d 100644
--- a/diy4.py
+++ b/diy4.py
@@ -1,11 +1,11 @@
-import random
+simport 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="" 
-# 请使用私钥key，对message进行加密
+noise = "port:@#$%^&*"
 for i in range(len(message)):
     a=message[i]
     b=random.choice(key)