auto save

func.py

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