code: public void addRegistry(Registry... registries){
  		for (Registry registry: registries){
  			registryList.add(registryList.size()-1, registry);
  		}
  	}
docs: Adds several Registry(s) which will be put after all others but just before the internal SimpleRegistry.<br>
  添加一些Registry，它们的位置会位于其他Registry之后，但是在缺省的SimpleRegistry之前。