save project

func.py

 total = []
 def new_input():
     while True:
-        unit = input("请输入：")
-        try
+        unit = input("请输入：("按q结账")")
         if unit == 'q':
             break
+        try:
+            unit = int(unit)
+        except:
+            print("输入数")
         else:
             total.append(unit)
+new_input()
 print(total)
\ No newline at end of file