java语言制作的简易考试系统 实现GUI界面，文件的读取，登入界面与答题界面的转换，客户端向服务器端发送帐号和密码的请求，服务器端客户端发送题目和选项。-java language examination system simple GUI interface, documents read, login interface converters interface with the answer, the client to the server-side account and passw