fgetpos在Go中可用吗?想要找到File.Position

问题描述

我有一个File，我想查找文件的偏移量/位置，即stdio中的fgetpos.我似乎在 http://golang.org/pkg/io/中找不到它.我必须自己计算还是有内置方法?

I have a File and I want to find the file offset/position, what would be fgetpos in stdio. I can't seem to find it in http://golang.org/pkg/io/. Do I have to count it myself or is there a build in method?

推荐答案

您应该能够从当前位置开始将Seek()设为0字节，这将返回结果位置.我不能100％地确定结果是否是您追求的绝对位置，但我希望它是绝对位置.

You should be able to do a Seek() to 0 bytes from the current position, which returns the resulting position. I'm not 100% sure the result is the absolute position you're after, but I would expect it to be.

offset, err := f.Seek(0, io.SeekCurrent)
if err != nil {
    // handle error
}
// offset is the current position

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