auto save

func.py

+def new_input():
+    total = []
+    while True:
+        try:
+            unit= input("请输入(q退出)：")
+            if unit== 'q':
+                 brink
+        except:
+            print('输入数字')
+        else:  
+            total.append(unit)
+
+
+            print("===============================")
+    return total
+
+def sum(money):
+    count = 0
+    fonr i in money:
+        count = count+1
+    return count 
+print = new_input()
+pay = sum(price)
+print("你消费了"+str(pay)+"元！快付钱！")
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