save project

diy4.py

@@ -4,12 +4,12 @@ import random
 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！"
-
+str4 = ""
 # 请使用私钥key，对message进行加密
 for i in message:
     str1=i
     str2=random.choice(key)
     str3=random.choice(key)
     str=str1+str2+str3
-    str2=str2+str
-print(str2)
\ No newline at end of file
+    str4=str4+str
+print(str4)
\ No newline at end of file