This paper firstly introduces the basic thought of MVC pattern, then realizes a network payment platform based on J2EE by MVC pattern of Java, adopting distributed design idea in database.
首先介绍MVC设计模式的基本思想，然后利用MVC模式，在数据库方面采用分布式的设计思想，实现了一个基于J2EE的网络付费平台。
This paper provides a mathematical model of real-time calculation for the simple AC circuit, and designs a programming scheme to fulfill this model in computer with Java language.
该算法利用三个不同的采样起点通过校正的方法来消除衰减分量对计算结果的影响，同时利用递推原理减少计算量，从而实现对短路电流的实时计算。
This paper provides a mathematical model of real-time calculation for the simple AC circuit, and designs a programming scheme to fulfill this model in computer with Java language.
该算法利用三个不同的采样起点通过校正的方法来消除衰减分量对计算结果的影响，同时利用递推原理减少计算量，从而实现对短路电流的实时计算。
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