go 疑难杂症

func Test_doSeond(t *testing.T) {
	msg := make([]Msg, 0)
	for i := 0; i < 5; i++ {
		m := Msg{
			data: []byte(strconv.Itoa(i)),
			addr: "wewe",
		}
		msg = append(msg, m)
	}

	m := make([]*Msg, 0)
	for _, v := range msg {
		m = append(m, &v)
	}
	for _, v := range m {
		fmt.Println(string(v.data))
	}
	time.Sleep(10 * time.Second)
}

自己跑下结果，会出人意料哦～～～