新建文件夹\A.java ..........\aaaa.jar ..........\B.java ..........\ClientSocketFrame.java ..........\code.java ..........\DAO.java ..........\HttpEchoServer.java ..........\Jie.java ..........\Jiedian.java ..........\MySQLTest.java ..........\server2.java ..........\ServerSocketFrame.java ..........\zouke.java 新建文件夹