脚本效果D脚本效果demote_to_destroyed_canaldemote_to_destroyed_canalin_game/common/scripted_effects/location_effects.txt:197定义in_game/common/scripted_effects/location_effects.txt:197198remove_location_modifier = chi_grand_canal199▾add_location_modifier = {200mode = add_and_extend201modifier = chi_grand_canal_destruction202years = -1}