[]byte切片编码为JSON时，它们将被转换为base64编码的字符串

package main
import (
	"fmt"
    "encoding/json"
)
func main() {

    bvalue := []byte("123")
   
    svalue:=string(bvalue)
    fmt.Println("[]byte:  " + string(bvalue))
    fmt.Println("svalue: ",svalue)

    m := map[string][]byte{
        "foo": bvalue,
    }
    marshal, _ := json.Marshal(m)
    fmt.Println(string(marshal))

    m2 := make(map[string]interface{})

    m2["as"]=bvalue
    marshal2, _ := json.Marshal(m2)
    fmt.Println(string(marshal2))


}