save project

func.py

+def a():
+    total = []
+    while True:
+        unit= input("请输入(q退出)：")
+        if unit== 'q':
+            break
+        else:
+            try:
+                unit=int(unit)
+            except:
+                print('请重新输入一个数字')
+            else:
+                total.append(unit)
+    return total
+def sum(money):
+    x=0
+    for i in money:
+        x+=i
+    return x
+b=a()
+c=sum(b)
+print('您一共消费了'+str(c)+'元，扫码还是现金呢?')
\ No newline at end of file