【诗歌特点】古时候由于交通不便,通信极不发达,亲人朋友之间往往一别数载难以相见,所以古人特别看重离别。离别之际,人们往往设酒饯别,折柳相送,有时还要吟诗话别,因此离情别绪就成为古代文人吟咏的一个永恒的主题。 [Poetry characteristics] In ancient times due to traffic inconvenience, very underdeveloped communications, friends and relatives often do not meet a few days to load, so the ancients particularly value parting. On the occasion of parting, people often set wine farewell, fold the willow and send out sometimes farewell poems, so becoming a permanent theme of the ancient literati chanting.