This was not my question. I was asked this question before. It all depends on how you answer this question. Your anwser may get an excellent score. It's all up to the interviewer.
请教大家一个技术问题, UNIX系统下, 如何写一个C程序, 能够在异常中断后程序重启时自动恢复文件读写指针(即接着上次中断的断点接着读写).