知识点 xml

people.xml

<?xml version="1.0" encoding="UTF-8"?>
<people id="888">
    <name>张三</name>
    <address>海淀</address>
</people>

peoples.xml

<?xml version="1.0" encoding="UTF-8"?>
<peoples version="0.9">
    <people id="1">
        <name>张三</name>
        <address>海淀</address>
    </people>
    <people id="2">
        <name>李四</name>
        <address>朝阳</address>
    </people>
</peoples>

package main

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

type People struct {
   XMLName xml.Name `xml:"people"`  //标签，go语言底层用的反射技术
   Id      int      `xml:"id,attr"` //首字母必须大写，id是属性则必须加上.attr
   Name    string   `xml:"name"`
   Address string   `xml:"address"`
}
type Peoples struct {
   XMLName xml.Name `xml:"peoples"`
   Version float64  `xml:"version,attr"`
   Peos    []People `xml:"people"`
}

func main() {
   //解析xml到元素节点people
   //peo := new(Peoples)
   //b, _ := ioutil.ReadFile("peoples.xml")
   //_ = xml.Unmarshal(b, peo)
   //fmt.Println(peo)

   //将结构体序列化为xml文件
   pro := People{Id: 123, Name: "sghdajh", Address: "ahdj"}
   //b, _ := xml.Marshal(pro)
   b, _ := xml.MarshalIndent(pro, "", "   ") //xml格式化函数
   b = append([]byte(xml.Header), b...)
   _ = ioutil.WriteFile("D:/people.xml", b, 0777)
}