从战前高升号运兵船的行踪、大战中的兵力调遣,到战后马关谈判期间李鸿章与朝廷的电报,中方密电在日本人眼中无秘密可言。战前数年,日方间谍即已开始对华渗透。了解战争史的人都知道,要搞海运、打海战,海上联络手段非常重要。电报技术发明后,迅速被应用到战争领域,各国政府军队都第一时间装备了电报系统,尤其是海军。然而甲午战争前后,中方的电报密码被日方破译,这是导致清军在战前、战中、战后军政各方面陷入被动的重要因素。 From the whereabouts of the ascendeds of the pre-war military carriers, the dispatch of troops in the war to the telegram sent by Li Hongzhang and the court during the negotiations in the post-war Mako, the Chinese side has no secret in the eyes of the Japanese. Years before the war, the Japanese spies began to infiltrate China. Anyone who understands the history of war knows that it is very important to engage in maritime transport and naval operations as well as means of maritime liaison. After the telegraph technology was invented, it was quickly applied to the field of war. The government troops of all countries were equipped with the telegraph system for the first time, especially the navy. However, before and after the Sino-Japanese War of 1894-1895, the telegraphic code of China was deciphered by the Japanese side. This was an important factor that led the Qing troops into a passive state in all aspects of war, war and postwar.