编程挑战帮助 [英] Programming Challenge Help

问题描述

我正在为您创建会议注册系统的任务.当您单击会议选项时，它将打开另一个对话框.您可以检查并选择选项.当您关闭对话框时，它应该为您提供总费用 在第一种形式.到目前为止，这就是我所拥有的.我不知道为什么会出现4个错误.

I am working on an assignment where you are creating a Conference Registration System. When you click on Conference Options, it opens up another dialog box. You can check and pick options. When you close the dialog box, it should give you the total cost in the 1st form. Here is what I have so far. I can't figure out why I am getting 4 errors. 

推荐答案

以下是我遇到的4个错误:

These are the 4 areas I am getting errors:

这篇关于编程挑战帮助的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！