boolean commandPASS()
	    {
	        if(cmd.equals("PASS"))
	        {
	            if(checkPASS(param))
	            {
	                reply = "230 用户登录了";
	                state = FtpState.FS_LOGIN;
	                System.out.println("新消息: 用户: "+user+" 来自于: "+ remoteHost +"登录了");
	                System.out.print("->");
	                return false;
	            }
	            else
	            {
	                reply = "530 没有登录";
	                return true;
	            }
	        }
	        else
	        {
	            reply = "501 参数语法错误,密码不匹配";
	            return true;
	        }

	    }