说明：  本文采用了三层结构，并使用了COM＋技术，来实现一个简单地电子银行地例子。这种开发架构可能有点老，但还有用。
(In this paper, a three-tier structure, and use the COM technology, to realize a simple manner to examples of e-banking. This development framework may be a bit old, but there are used.)