save project

func.py

+def new_input():    
+    total = []
+    while True:
+        unit= input("请输入：")
+        if unit== 'q':
+            break
+        else:
+            try:
+                unit=int(unit)
+            except:
+                print("输入错误，请重新输入")
+            else:
+                total.append(int(unit))
+    return total
+def sum(list):
+    he=0
+    for i in list:
+        he+=i
+        return he
+total=new_input()
+he=sum(total)
+print("您一共消费了",he,"元，扫码还是现金呢？")
\ No newline at end of file