晚清时期 ,列强利用炮舰干涉教案的政策分为四个阶段 ,变幻莫测。法、英、美、德是利用炮舰干涉教案的四个主要国家 ,它们的政策也有差异。列强利用炮舰干涉教案的政策对中外双方都产生了重要影响 ,并给中国人民留下了深刻的历史教训。 During the late Qing period, the policy of using the artillery-ship intervention in the lesson plan by the powers was divided into four stages, which were unpredictable. France, Britain, the United States and Germany are the four major countries that make use of the gunboat intervention program. Their policies are also different. The policy of the powers to use the artillery barges to interfere in teaching plans has had a significant impact on both China and the other countries and left profound historical lessons for the Chinese people.