save project

func.py

+def a():
+    total = []
+    while True:
+        unit= input("请输入：")
+        if unit== 'q':
+            break
+        else:
+            try:
+                unit=int(unit)
+            except:
+                print("请重新输入一个数字")
+            else:
+                total.append(unit)
+            finally:    
+                print("-"*30)
+    return total
+
+
+def sum(list):
+    d=0
+    for i in list:
+        d=d+i
+    return d
+
+
+price=a()
+pay=sum(price) 
+print("您一共消费了"+str(pay)+"元！扫码还是现金?"  )        
\ No newline at end of file