auto save

func.py

+def price():
+    total = []
+    while True:
+        unit= input("请输入：")
+        if unit== 'q':
+            break
+        try:
+            unit=int(unit)
+        except:
+            print("输入整数")
+        else:
+            total.append(unit)
+    return total
+
+def sum(money):
+    count =0
+    for i in money:
+        count=count+i
+    return count
+
+
+# price=est_4()
+pay = sum(price())
+print("你一共消费了"+str(pay)+"元,扫码还是现金")
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