丸子No1

摘要： Write two servers, one uses 1034 port, another server uses 1035, write a normal client which establish connection with 1034 server and receive a message. Another hacker client program which tells which port is open.(port scanner) 1 import java.io.*; 2 import java.net.*; 3 class tcpserver{ 4 publ... 阅读全文