public void pushEffect(ILuaState luaState,ISkillEffect effect)
 {
     if ( effect == null || effect.getRef() == 0 )
     {
         luaState.PushNil();
     }
     else
     {
         luaState.RawGetI(LuaDef.LUA_REGISTRYINDEX, effect.getRef());
     }
 }