//把文件作为字节流进行读操作 FileInputStream in = new FileInputStream(filename);//FileInputStream具体实现了在文件上读取数据 相关文章: 2022-12-23 2021-09-03 2022-12-23 2022-12-23 2021-06-05 2022-12-23 2022-12-23 2021-08-02