使用encoding/xml包提供的函数进行XML编码和解码，并设置缩进格式和命名空间

package main

import (
    "encoding/xml"
    "fmt"
    "os"
)

type Person struct {
    XMLName xml.Name `xml:"person"`
    Name    string   `xml:"name"`
    Age     int      `xml:"age"`
}

func main() {
    person := Person{
        Name: "Alice",
        Age:  30,
    }

    xmlData, err := xml.MarshalIndent(person, "", "  ")
    if err != nil {
        fmt.Println("XML encoding error:", err)
        return
    }

    os.Stdout.Write([]byte(xml.Header))
    os.Stdout.Write(xmlData)
}

<?xml version="1.0" encoding="UTF-8"?>
<person>
  <name>Alice</name>
  <age>30</age>
</person>

package main

import (
    "encoding/xml"
    "fmt"
    "strings"
)

type Person struct {
    XMLName xml.Name `xml:"person"`
    Name    string   `xml:"name"`
    Age     int      `xml:"age"`
}

func main() {
    xmlData := `
        
            Alice
            30
        
    `

    person := Person{}
    err := xml.Unmarshal([]byte(xmlData), &person)
    if err != nil {
        fmt.Println("XML decoding error:", err)
        return
    }

    fmt.Println(person.Name)
    fmt.Println(person.Age)
}

Alice
30

type Person struct {
    XMLName xml.Name `xml:"namespace-prefix:person"`
    Name    string   `xml:"name"`
    Age     int      `xml:"age"`
}