code: public static File file(String... names) {
  		if (ArrayUtil.isEmpty(names)) {
  			return null;
  		}
  
  		File file = null;
  		for (String name : names) {
  			if (file == null) {
  				file = file(name);
  			} else {
  				file = file(file, name);
  			}
  		}
  		return file;
  	}
docs: 通过多层目录创建文件
  
  元素名（多层目录名）
  
  @return the file 文件
  @since 4.0.6