auto save

func.py

+def new_input():    
+    total = []
+    while True:
+        unit= input("请输入：")
+        if unit== 'q':
+            break
+        else:
+            try:
+                unit = int(unit)
+            except:
+                print("重新输入")
+            else:
+                total.append(unit)
+            finally:
+                print("-"*30)
+    return total
+def sum(unit):
+    count = 0
+    for i in unit:
+        count=count+1
+    return count
+price = new_input()
+pay = sum(price)
+print(str(pay)+"元!")
+