What is a epub file?
什么是epub文件?
EPUB stands for electronic publication and is used as a storage format for e-books. It was first released in 2007 by the International Digital Publishing Forum (IDPF).
EPUB代表电子出版物，是电子书的存储格式。它于2007年由国际数字出版论坛（IDPF）首次发布。