额，已经自己解决了：

RUBY 代码复制

# -----------------------------------------------------------------------------
# Module DataManager
# -----------------------------------------------------------------------------
module DataManager
  #--------------------------------------------------------------------------
  # ● 生成各种游戏实例
  #--------------------------------------------------------------------------
  def self.create_game_objects
    $game_temp          = Game_Temp.new
    $game_system        = Game_System.new
    $game_timer         = Game_Timer.new
    $game_message       = Game_Message.new
    $game_switches      = Game_Switches.new
    $game_variables     = Game_Variables.new
    $game_self_switches = Game_SelfSwitches.new
    $game_actors        = Game_Actors.new
    $game_party         = Game_Party.new
    $game_troop         = Game_Troop.new
    $game_map           = Game_Map.new
    $game_player        = Game_Player.new 
    $jaes               = Jaes.new
    $sv_camera          = Battle_Camera.new   #新加
  end

# -----------------------------------------------------------------------------


# Module DataManager


# -----------------------------------------------------------------------------


module DataManager


  #--------------------------------------------------------------------------


  # ● 生成各种游戏实例


  #--------------------------------------------------------------------------


  def self.create_game_objects


    $game_temp          = Game_Temp.new


    $game_system        = Game_System.new


    $game_timer         = Game_Timer.new


    $game_message       = Game_Message.new


    $game_switches      = Game_Switches.new


    $game_variables     = Game_Variables.new


    $game_self_switches = Game_SelfSwitches.new


    $game_actors        = Game_Actors.new


    $game_party         = Game_Party.new


    $game_troop         = Game_Troop.new


    $game_map           = Game_Map.new


    $game_player        = Game_Player.new 


    $jaes               = Jaes.new


    $sv_camera          = Battle_Camera.new   #新加


  end

在JAES VA2.7的module DataManager中，加入$sv_camera = Battle_Camera.new就可以了...

确定有战斗背景图吗？

没人知道吗，要怎么解决啊...拜托高手们帮帮忙...

{:2_276:} 麻烦大家帮帮忙~谢谢了！