如何在Go中获取文件长度?
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?
答
(*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())