auto save

func.py

 def func():
     total=[]
     while True:
-        try:
-            unit= input("请输入：")
-            if unit== 'q':
-        except:
-            print("输入正确的数：")        
+        unit= input("请输入菜品价格：")
+        if unit== 'q':
+            break
         else:
-            total.append(unit)
-    print(total)
\ No newline at end of file
+            try:
+                unit = int(unit)
+            except:
+                print("输入正确的数：")        
+            else:
+                total.append(unit)
+    return total
+total=func()        
+print(total[0])
\ No newline at end of file