嗯，是的，贴一下代码：

package main

import (
        "encoding/json"
        "fmt"
        "io"
        "log"
        "strings"
)

type D struct {
        I string
        E *bool
}

func (d *D) String() string {
        if d == nil {
                return "<nil>"
        } else if d.E == nil {
                return fmt.Sprintf("{I: %s, E: %v}", d.I, d.E)
        } else {
                return fmt.Sprintf("{I: %s, *E: %v}", d.I, *d.E)
        }
}

const txt = `
{"I": "1", "E": true}
{"I": "2", "E": false}
null
{"I": "3"}
`

func main() {
        dec := json.NewDecoder(strings.NewReader(txt))

        for {
                var d = new(D)
                err := dec.Decode(&d)
                if err == io.EOF {
                        break
                }
                if err != nil {
                        log.Fatal(err)
                }
                log.Printf("%+v", d)
        }
}


【 在 flw (帅五进九) 的大作中提到: 】
: 1，用指针
: 2，用指针
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