go 語言 生成json字符串數組

實現

https://blog.csdn.net/zxy_666/article/details/80173288

Json Marshal：將數據編碼成json字符串

 

package main
import(
	"fmt"
	"encoding/json"
)
type Stu struct {
    Name  string `json:"name"`
    Age   int
    HIgh  bool
    sex   string
    Class *Class `json:"class"`
}

type Class struct {
    Name  string
    Grade int
}

func main() {
    //實例化一個數據結構，用於生成json字符串
    stu := Stu{
        Name: "張三",
        Age:  18,
        HIgh: true,
        sex:  "男",
    }

    //指針變量
    cla := new(Class)
    cla.Name = "1班"
    cla.Grade = 3
    stu.Class=cla
    //Marshal失敗時err!=nil
    jsonStu, err := json.Marshal(stu)
    if err != nil {
        fmt.Println("生成json字符串錯誤")
	}
	fmt.Println(string(jsonStu))
	var a  = [3]Stu{stu, stu, stu}
	jsonStu2, err2 := json.Marshal(a)
	if err2 != nil {
        fmt.Println("生成json字符串錯誤")
	}
    //jsonStu是[]byte類型，轉化成string類型便於查看
	
	fmt.Println(string(jsonStu2))
}

Go的json解析：Marshal與Unmarshal