auto save

diy2.py

 message = "诺依，周末一起去看动漫展吧！"
 message = "诺依，周末一起去看动漫展吧！"
 
 
 # 请对message进行遍历，取出所有元素
 # 请对message进行遍历，取出所有元素
-for i in message:
-    print(i,end="  ")
+length=len(message)
+i=0
+while i < length:
+    elment=message[i]
+    print(elment)
+    i+=1
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