此源码只实现了，基本的登录，查询，订票等功能，源码里带有注释；里面也包括了一些GDI+自定义控件的知识，对界面感兴趣的朋友也可以下载此源码学习-This source only implements the basic login, queries, booking and other functions, with comments in the source code which also includes a number of GDI+ custom knowledge of i