golang 判断IPv4 or IPv6 address

import strings

func IsIPv4(address string) bool {
    return strings.Count(address, ":") < 2
}

func IsIPv6(address string) bool {
    return strings.Count(address, ":") >= 2
}

 

来源：https://www.cnblogs.com/wangjq19920210/p/11678697.html