very good!java语言实现QPSK调制解调程 ·这是一个软件工程的图书管理.-very good! java language QPSK modulation and demodulation process to achieve this is a software engineering management books.

众所周知，在Java多线程编程中，一个非常重要的方面就是线程的同步问题 文章来源：iT人家 (www.itrenjia.org) 原文地址：http://www.itrenjia.org/2010/1212/894.html-Well-known, in Java multi-thread programming, a very important aspect is thread synchronization problem

简单的签到 计时 源码,新手可以看下,学习下.-Simple sign timing source, and newcomers can look, learn the next.