armor1_id or armor2_id or armor3_id or armor4_id 这样是全部防具(四类)来判断、不分类可以这样,例如当防具有不装备时
if $game_party.actors[0].armor1_id == 0 or $game_party.actors[0].armor2_id == 0 or $game_party.actors[0].armor3_id == 0 or $game_party.actors[0].armor4_id == 0
#当1号同伴防具(四类)有不装备时
if $game_party.actors[0].armor1_id == 1 or $game_party.actors[0].armor2_id == 1 or $game_party.actors[0].armor3_id == 1 or $game_party.actors[0].armor4_id == 1
#当1号同伴装备有1号防具时