auto save

ru.py

+def new_input():
+    total = []
+    while True:
+        money = input('请输入（q退出）：')
+        if money == 'q':
+            break
+        else:
+            try:
+                money = int(money)
+            except:
+                print("请重新输入一个数字")
+            else:
+                total.append(money)
+            finally:
+                print("-"*30)
+    return total
+
+
+def sum(money):
+    comm=0
+    for i in money:
+        comm=comm+i
+    return comm
+
+result = new_input()
+pay=sum(result)
+print("一共消费"+str(pay)+"元,扫码还是现金？")
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