如何用Go编程语言读取JSON文件？

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

type Person struct {
    Name  string `json:"name"`
    Age   int    `json:"age"`
    Email string `json:"email"`
}

func main() {
    file, err := os.Open("data.json")
    if err != nil {
        fmt.Println("无法打开JSON文件:", err)
        return
    }
    defer file.Close()

    decoder := json.NewDecoder(file)
    var person Person
    err = decoder.Decode(&person)
    if err != nil {
        fmt.Println("解码JSON失败:", err)
        return
    }

    fmt.Println("姓名:", person.Name)
    fmt.Println("年龄:", person.Age)
    fmt.Println("邮箱:", person.Email)
}