auto save

func.py

@@ -5,6 +5,24 @@ def new_input():
         if unit== 'q':
             break
         else:
-            total.append(unit) # 列表名.append()方法添加元素unit
-    print(total)
-new_input()
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+            try:  # 尝试执行
+                unit = int(unit)
+            except:  # 报错则执行
+                print("请重新输入一个数字")
+            else:
+                total.append(unit)
+            finally:
+                print("=====================")
+    return total
+
+
+def sum(money):
+    count = 0
+    for i in money:
+        count = count + i
+    return count
+
+
+price = new_input()
+pay = sum(price)
+print("您一共消费了" + str(pay) + "元！扫码还是现金呢？")
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