go中的xml列表中的注释

Question

我想做类似的事情：

    <members>

        <!-- It's a first group -->

        <member>Whatever</member>

        ...

        <member>whatever</member>

        <!-- It's a second group -->

        <member>Whatever</member>

        ...

        <member>whatever</member>

    </members>

有没有办法用golang做到这一点？

Answer 1

你可以通过两种方式做到这一点。首先，您可以将评论作为嵌入成员的更大结构的一部分，并使其在每次编组成员时编组评论：type Members struct {&nbsp; &nbsp; XMLName xml.Name `xml:"members"`&nbsp; &nbsp; Members []CommentedMember}type CommentedMember struct {&nbsp; &nbsp; Member&nbsp; &nbsp; comment xml.Comment}func (cm CommentedMember) MarshalXML(e *xml.Encoder, start xml.StartElement) error {&nbsp; &nbsp; if cm.comment != nil {&nbsp; &nbsp; &nbsp; &nbsp; err := e.EncodeToken(cm.comment)&nbsp; &nbsp; &nbsp; &nbsp; if err != nil {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return err&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }&nbsp; &nbsp; return e.Encode(cm.Member)}type Member struct {&nbsp; &nbsp; XMLName xml.Name `xml:"member"`}第二种方法是创建一个单独的Comment类型并使您的Members结构包含不同的类型：type Members2 struct {&nbsp; &nbsp; XMLName xml.Name `xml:"members"`&nbsp; &nbsp; Members []interface{}}type Comment stringfunc (cm Comment) MarshalXML(e *xml.Encoder, start xml.StartElement) error {&nbsp; &nbsp; if cm != "" {&nbsp; &nbsp; &nbsp; &nbsp; return e.EncodeToken(xml.Comment(cm))&nbsp; &nbsp; }&nbsp; &nbsp; return nil}type Member struct {&nbsp; &nbsp; XMLName xml.Name `xml:"member"`}这两个都在操场上：https: //play.golang.org/p/3n-xH1Zc-n。