save project

func.py

 def new_input():
     total = []
     while True:
-        unit= input("请输入：")
+        unit= input("请输入：按q提出")
         if unit== 'q':
             break
         else:
-            total.append(unit)
-    print(total)
-new_input()
\ No newline at end of file
+            try:
+                unit=int(unit)
+            except:
+                print("输入错误")
+            else:
+                total.append(unit)
+            print("-"*30)
+    return total
+
+def sum(money)
+    count=0
+    for i in money:
+        count=count+i
+    return count
+price=new_input()
+pay=sum(price)
+    print("你一共消费了"+str(pay)+"元~扫码还是现金？")