题目：

题解：

func validIPAddress(queryIP string) string {if sp := strings.Split(queryIP, "."); len(sp) == 4 {for _, s := range sp {if len(s) > 1 && s[0] == '0' {return "Neither"}if v, err := strconv.Atoi(s); err != nil || v > 255 {return "Neither"}}return "IPv4"}if sp := strings.Split(queryIP, ":"); len(sp) == 8 {for _, s := range sp {if len(s) > 4 {return "Neither"}if _, err := strconv.ParseUint(s, 16, 64); err != nil {return "Neither"}}return "IPv6"}return "Neither"
}