auto save

func.py

-total = []
-while True:
-    unit= input("请输入：")
-    if unit== 'q':
+def bendan():
+    while True:
+        try:
+            print("-"*503)
+            unit = float(input("请输入："))
+        except:
+            if unit == 'q':
                 break
             else:
+                print("� � �")
+        else:
             total.append(unit)
-print(total)
\ No newline at end of file
+
+total = []
+bendan()
+print(sum(total))