auto save

func.py

+total = []
+while True:
+    unit= input("请输入：")
+    if unit== 'q':
+        break
+    else:
+        total.append(unit)
+        return total
+666=tota()
+print(tota)
+def sum(mm)
+    for i in mm()
+        mm=0
+        mm=mm+i
+        return mm
+result=new_input()
+pay=sum(result)
+print("一共消费"+str(pay)+"元，现金还是扫码")
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