golang 读写yaml文件

go的系统包没有yaml读写的，需要下载第三方库

go get gopkg.in/yaml.v2

package main

import (
	"fmt"
	"gopkg.in/yaml.v2"
	"io/ioutil"
	"strconv"
)

func checkError(err error){
	if err != nil{
		panic(err)
	}
}
type Study struct{
	CourseName string `yaml:"CourseName"`
	Score 		int	   `yaml:"Score"`
}
type Student struct{
	Name 		 string 	`yaml:"name"`
	Address		 string 	`yaml:"addr"`
	ScoreList	 []Study    `yaml:"ScoreList"`
}
func writeToXml(src string){
	stu := &Student{
		Name:    "George",
		Address: "北京",
		ScoreList: []Study{{"语文",21},{"数学",22}},
	}
	data,err := yaml.Marshal(stu)	// 第二个表示每行的前缀，这里不用，第三个是缩进符号，这里用tab
	checkError(err)
	err = ioutil.WriteFile(src,data,0777)
	checkError(err)
}
func readFromXml(src string){
	content,err := ioutil.ReadFile(src)
	checkError(err)
	newStu := &Student{}
	err = yaml.Unmarshal(content,&newStu)
	checkError(err)
	ScoreList := newStu.ScoreList
	fmt.Println(newStu.Name+"的学习情况")
	for _,v := range ScoreList {
		fmt.Println("Course:" + v.CourseName + "\tScore:" + strconv.Itoa(v.Score))
	}
}
func main(){
	src := "YAML/c.yaml"
	//writeToXml(src)
	readFromXml(src)
}