code: public static EnumerationIter<URL> getResourceIter(String resource) {
  		final Enumeration<URL> resources;
  		try {
  			resources = ClassLoaderUtil.getClassLoader().getResources(resource);
  		} catch (IOException e) {
  			throw new IORuntimeException(e);
  		}
  		return new EnumerationIter<>(resources);
  	}
docs: 获取指定路径下的资源Iterator<br>
  路径格式必须为目录格式,用/分隔，例如:
  
  <pre>
  config/a
  spring/xml
  </pre>
  
  @param resource 资源路径
  @return 资源列表
  @since 4.1.5