save project

2.py

+def f():
+    toal = []
+    while True:
+        
\ No newline at end of file

diy.py

 def f():
     toal = []
     while True:
-        unit = input("输入：")
-        if unit == 'q':
-            break
+        unit = int (input("输入价格"))
+    except:
+        if(unit == 'q'):
+            exit()
         else:
-            toal.append(unit)
+            print("输入错误")
+    else:
+        toal.append(unit)
+
+    
+f()
         
-    print(toal)
-f()
\ No newline at end of file
+  
\ No newline at end of file