如何在Go中获取文件长度? [英] How to get file length in Go?

问题描述

我查找了 golang.org/pkg/os/#File ，但还是不知道. 似乎无法获取文件长度，我错过了什么吗?

I looked up golang.org/pkg/os/#File , but still have no idea. Seems there is no way to get file length, did I miss something?

如何在Go中获取文件长度?

How to get file length in Go?

推荐答案

(*os.File).Stat()返回os.FileInfo值，而该值又具有Size()方法.因此，给定文件f，代码将类似于

(*os.File).Stat() returns a os.FileInfo value, which in turn has a Size() method. So, given a file f, the code would be akin to

fi, err := f.Stat()
if err != nil {
  // Could not obtain stat, handle error
}

fmt.Printf("The file is %d bytes long", fi.Size())

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