晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
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/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
/*
* net.h
*
* Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>
* & Ralph Metzler <ralph@convergence.de>
* for convergence integrated media GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef _DVBNET_H_
#define _DVBNET_H_
#include <linux/types.h>
/**
* struct dvb_net_if - describes a DVB network interface
*
* @pid: Packet ID (PID) of the MPEG-TS that contains data
* @if_num: number of the Digital TV interface.
* @feedtype: Encapsulation type of the feed.
*
* A MPEG-TS stream may contain packet IDs with IP packages on it.
* This struct describes it, and the type of encoding.
*
* @feedtype can be:
*
* - %DVB_NET_FEEDTYPE_MPE for MPE encoding
* - %DVB_NET_FEEDTYPE_ULE for ULE encoding.
*/
struct dvb_net_if {
__u16 pid;
__u16 if_num;
__u8 feedtype;
#define DVB_NET_FEEDTYPE_MPE 0 /* multi protocol encapsulation */
#define DVB_NET_FEEDTYPE_ULE 1 /* ultra lightweight encapsulation */
};
#define NET_ADD_IF _IOWR('o', 52, struct dvb_net_if)
#define NET_REMOVE_IF _IO('o', 53)
#define NET_GET_IF _IOWR('o', 54, struct dvb_net_if)
/* binary compatibility cruft: */
struct __dvb_net_if_old {
__u16 pid;
__u16 if_num;
};
#define __NET_ADD_IF_OLD _IOWR('o', 52, struct __dvb_net_if_old)
#define __NET_GET_IF_OLD _IOWR('o', 54, struct __dvb_net_if_old)
#endif /*_DVBNET_H_*/