开埠前后日本与长江三角洲地区交流的港口有个转变的过程,开埠之前主要和宁波港往来,开埠之后则与上海港进行往来。于此相应的是,开埠之前,宁波在日本的发展过程中起很重要的作用。上海的开埠,缩短了西方国家通向日本的航线,也为日本诸港的开放提供经验和条件,客观上起到了促进日本诸港开放的作用。 Before and after the opening of the port of Japan and the Yangtze River Delta region exchange of the port there is a process of change, before the opening of the main port and the Ningbo Port, after opening the port with Shanghai. Correspondingly, before the opening of ports, Ningbo played a very important role in the development of Japan. The opening of Shanghai has shortened the routes for the western countries to Japan and provided experience and conditions for the opening up of Japan’s various ports and objectively played an important role in promoting the opening up of all the ports of Japan.