(a)给应用程序增加一个自定义的类,单击 Insert-New clas菜单,添加新类类名为 CMy WinInetclass,系统会自 动在项目中增加 My WinInetclass cp和 My WinInetclass h两 个文件 New class ?| Class type AFC Class OK Class information Cancel Name: CMyWinInetclass File name MywinInetClass1. cpp Change Base class: CDialog Dialog ID: Automation c None Automation C Createable by type ID: WinInet. MywinInetClass17 (a) 给应用程序增加一个自定义的类，单击Insert→New Class菜单，添加新类类名为CMyWinInetClass，系统会自 动在项目中增加MyWinInetClass.cpp和MyWinInetClass.h两 个文件