您如何在Go中执行结构的深层复制？

我离得很近。我应该已经将copyedTree分配给父属性。

func (tree *Tree) CopyTree() *Tree {    if (tree == nil) {        return nil    } else {        copiedTree := &Tree { tree.Left.CopyTree(), tree.Mid.CopyTree(), tree.Right.CopyTree(), tree.Value, nil, tree.Orientation, tree.IsTerminal, tree.Type,        }        if copiedTree.Left != nil { copiedTree.Left.Parent = copiedTree        }        if copiedTree.Right != nil { copiedTree.Right.Parent = copiedTree        }        if copiedTree.Mid != nil { copiedTree.Mid.Parent = copiedTree        }        return copiedTree    }}