关于收发信息的代码，内有程序可直接打开，是做嵌入式的学习典范．-transceiver information on the code, there are procedures can be directly opened, it is so embedded learning model.

servlet 网页开发 次方法用于实现员工的增，删，改，查等功能 对web开发的初学者非常实用-servelet : realize functions of adding ,deleting ,modify,finding and so on.and it is very useful for the beginner of the web developing learner

激光模式、振幅、相位等UI界面的matlab模拟-Matlab simulation of UI interface of laser mode, amplitude, phase and so on