Go lang是否可以创建也可以用作切片的结构？

Question

Is it possible to have a struct in go that can also be accessed as a slice? So, for example, I'd want something like this:

type Item struct {
    Name string
}

type ItemList struct {
    PackDate time.Time
    []Item
}

And then I could access an Item in the ItemList as a slice.

myItemList[0].Name  

Or access the members of ItemList in the normal struct way.

myItemList.PackDate

If this is not possible, are there any recommended patterns for handling a sort of slice with metadata like this in go?

Answer 1

The recommended thing to do is to simply access the slice as a struct field:

type Item struct {
    Name string
}

type ItemList struct {
    PackDate time.Time
    Items    []Item
}

Accessing the values:

myItemList.Items[0].Name
myItemList.PackDate

Iterating over the slice:

for _, item := range myItemList.Items {
    // do something with item.Name
}