中唐诗人张祜《题金陵渡》诗：“金陵津渡小山头，一宿行人自可愁。潮落夜江斜月里，两三星火是瓜洲。”关于诗中的“金陵渡”及“瓜洲”这两处地名，一向有两说：一说在今江苏南京及六合，以中国社科院文研所《唐诗选》为代表；另说则在今江苏镇江及扬州，以沈祖《唐人七绝诗浅释》 The poet Zhang Zhong in the Tang Dynasty “inscribed Jinlingdu” poem: “Jinling Jindu hill, a night of pedestrians since anxiety. Jinlingdu ”and“ Guazhou ”these two place names, there are always two said: One said in Nanjing and Liuhe in Jiangsu today, the Chinese Academy of Social Sciences Research Institute“ Tang Poetry ”as the representative; the other is in this Zhenjiang and Yangzhou in Jiangsu Province, with Shenzu “Tang seven quasi-poems shallow explanation”