驱逐舰和护卫舰是当今世界各国海军发展的主要舰种,由于这两种舰艇在排水量、使命任务、所装武器与战术技术性能的差别越来越小,而且,作战能力从单一任务向多用途舰艇发展,所以常常把除轻型护卫舰以外的护卫舰和驱逐舰通称为驱护舰。从目前在役的驱护舰的主炮口径来看,主要分布在130～76毫米口径范围内,也有部分排水量较小的驱护舰主炮采用了57毫米舰炮。值得我们关注的是,冷战结束后开发的新型驱护舰,主炮选型有了一定的改变。 Destroyers and frigates are the main types of naval development in various countries in the world today. As these two types of ships have less and less difference in performance in terms of displacement and missions, the capabilities of their weapons and tactics are getting smaller and smaller, and their combat capabilities have shifted from single missions to multi-purpose ships Development, so often other than frigates frigate and destroyers known as the destroyer. From the main gun caliper currently in service, the main distribution is in the range of 130-76 millimeters, and some of the destroyer guns with smaller displacement use 57-millimeter guns. What deserves our attention is that the new type of destroyer developed after the Cold War has undergone some changes in the selection of the main gun.