Golang using GOB serialization of a struct object to be saved to a local

Golang can serialize struct objects through JSON or GOB, although JSON serialization is more general, but GOB encoding can be used to
It is very simple to implement the method serialization of a struct that is not supported by JSON, and it is easy to save it locally using the GOB package serialization struct.

The serialized struct object implemented by the GOB package is saved to the local

It is important to note that the Golang serialization has a small pit, that is, the field in the struct must be exportable, that is, the first letter capitalized

package mainimport (    "encoding/gob"    "fmt"    "os")type User struct {    Id   int    Name string}func (this *User) Say() string {    return this.Name + ` hello world ! `}func main(){    file, err := os.Create("mygo/gob")    if err != nil {        fmt.Println(err)    }    user := User{Id: 1, Name: "Mike"}    user2 := User{Id: 3, Name: "Jack"}    u := []User{user, user2}    enc := gob.NewEncoder(file)    err2 := enc.Encode(u)    fmt.Println(err2)}

Using GOB to deserialize local struct objects

To successfully deserialize a locally saved object, if you know the structure of a locally saved struct

package mainimport (    "encoding/gob"    "fmt"    "os")type User struct {    Id   int    Name string}func (this *User) Say() string {    return this.Name + ` hello world ! `}var u []Userfile, err := os.Open("mygo/gob")if err != nil {    fmt.Println(err)}dec := gob.NewDecoder(file)err2 := dec.Decode(&u)if err2 != nil {    fmt.Println(err2)    return}for _ , user := range u {    fmt.Println(user.Id)    fmt.Println(user.Say())}

GOB encoded serialized struct object saved to a local application I think it's a small app that needs to save the data locally so it doesn't need to be used
SQL database, you can simply deploy your app.