string - slice 无法转换为字符串

Question

func (this *AdminModel) Login(v_name string, v_pwd string) (bool, error, uint) {
    o := orm.NewOrm()
    v_pwd_encrypt_byte := md5.Sum([]byte(v_pwd))
    v_pwd_encrypt := string(v_pwd_encrypt_byte[:])
    t_admin := Admin{Name: v_name, Pwd: v_pwd_encrypt}
    fmt.Printf("username:%v  password:%v\n", v_name, v_pwd_encrypt_byte)
    fmt.Printf("username:%v  password:%v\n", v_name, v_pwd_encrypt_byte[:])
    fmt.Printf("username:%v  password:%v\n", v_name, v_pwd_encrypt)
    err := o.Read(&t_admin, "Name", "Pwd")
    if err != nil {
        return false, err, 0
    } else {
        return true, nil, t_admin.Id
    }
}

打印结果:

username:yuhaya  password:[97 22 175 237 203 11 195 16 131 147 92 28 38 47 244 201]
username:yuhaya  password:[97 22 175 237 203 11 195 16 131 147 92 28 38 47 244 201]
username:yuhaya  password:a???
                          ???\&/??

为什么最后一行打印结果乱码？

v_pwd_encrypt := string(v_pwd_encrypt_byte[:])

这个职位转换不成问题吗？

Answer 1

添加到@Ainar-G 的回答，hex.EncodeToString是最有效的方法，因为它不涉及像 fmt.Sprintf 这样的反射或类型猜测。

func main() {
    sum := md5.Sum([]byte("meh"))
    stringSum := hex.EncodeToString(sum[:])
    fmt.Println(stringSum)
}