Golang創建XML

package main

import (
	"encoding/xml"
	"fmt"
	"io/ioutil"
)

type Post struct {
	XMLName xml.Name `xml:"post"`
	Id      string   `xml:"id,attr"`
	Content string   `xml:"content"`
	Author  Author   `xml:"author"`
}

type Author struct {
	Id   string `xml:"id,attr"`
	Name string `xml:",chardata"`
}

func main() {
	post := Post{
		Id:      "1",
		Content: "Hello World!",
		Author: Author{
			Id:   "2",
			Name: "Sau Sheong",
		},
	}
    
    // output, err := xml.Marshal(&post)    //無縮進
    //美化後的XML
    output, err := xml.MarshalIndent(&post, "", "\t\t")
	if err != nil {
		fmt.Println("Error marshalling to XML:", err)
		return
	}

	err = ioutil.WriteFile("post.xml", []byte(xml.Header + string(output)), 0644)
	if err != nil {
		fmt.Println("Error writing XML to file:", err)
		return
	}

}

運行結果：

<?xml version="1.0" encoding="UTF-8"?>
<post id="1">
		<content>Hello World!</content>
		<author id="2">Sau Sheong</author>
</post>