save project

func.py

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