1importjava.io.IOException;2importjava.net.ServerSocket;3importjava.net.Socket;4importjava.util.ArrayList;5importjava.util.List;67publicclassFileimplementsRunnable{89publicstaticArrayList<Socket> socketList_IO =newArrayList<>();10ServerSocket ssocket;11Socket socket;1213publicvoidrun() {14//文件传输开...