使用 Golang 时如何对自定义类型进行序列化？

package main

import (
    "encoding/json"
    "fmt"
)

// Employee is a custom type representing an employee.
type Employee struct {
    Name   string
    Age    int
    Skills []string
}

// MarshalJSON implements the json.Marshaler interface.
func (e Employee) MarshalJSON() ([]byte, error) {
    type Alias Employee
    return json.Marshal(&struct{ Alias }{e})
}

func main() {
    emp := Employee{Name: "John Doe", Age: 30, Skills: []string{"golang", "javascript"}}

    encoded, err := json.Marshal(emp)
    if err != nil {
        fmt.Println("Error:", err)
        return
    }

    fmt.Println("JSON:", string(encoded))
}

package main

import (
    "encoding/gob"
    "fmt"
    "io/ioutil"
    "os"
)

// ComplexStruct represents a complex data structure.
type ComplexStruct struct {
    Map        map[string]int
    Slice      []int
    InnerStruct struct {
        Field1 string
        Field2 int
    }
}

func main() {
    // Register the ComplexStruct type for serialization.
    gob.Register(ComplexStruct{})

    // Create a ComplexStruct instance.
    cs := ComplexStruct{
        Map: map[string]int{"key1": 1, "key2": 2},
        Slice: []int{3, 4, 5},
        InnerStruct: struct {
            Field1 string
            Field2 int
        }{"value1", 6},
    }

    // Encode the ComplexStruct to a file.
    f, err := os.Create("data.gob")
    if err != nil {
        fmt.Println("Error creating file:", err)
        return
    }
    defer f.Close()

    enc := gob.NewEncoder(f)
    if err := enc.Encode(cs); err != nil {
        fmt.Println("Error encoding:", err)
        return
    }

    // Decode the ComplexStruct from the file.
    data, err := ioutil.ReadFile("data.gob")
    if err != nil {
        fmt.Println("Error reading file:", err)
        return
    }

    dec := gob.NewDecoder(bytes.NewReader(data))
    var decoded ComplexStruct
    if err := dec.Decode(&decoded); err != nil {
        fmt.Println("Error decoding:", err)
        return
    }

    // Print the decoded struct.
    fmt.Println("Decoded:", decoded)
}