save project

diy3.py

-message = "S"
-print(message[0])
+import random
+message = "SBSB"
+key = "WCWCWCWCWCWCWCWC"
+key_message=""
+for i in message:
+    s1=i
+    s2=random.choice(key)
+    s3=random.choice(key)
+    s4=s1 + s2 + s3
+    key_message +=s4
+print(key_message)
 # 请使用索引的知识，取出message所有元素（不用遍历的方式）
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