GO IP.Mask用法及代碼示例

package main

import (
    "fmt"
    "net"
)

func main() {
    ipv4Addr := net.ParseIP("192.0.2.1")
    // This mask corresponds to a /24 subnet for IPv4.
    ipv4Mask := net.CIDRMask(24, 32)
    fmt.Println(ipv4Addr.Mask(ipv4Mask))

    ipv6Addr := net.ParseIP("2001:db8:a0b:12f0::1")
    // This mask corresponds to a /32 subnet for IPv6.
    ipv6Mask := net.CIDRMask(32, 128)
    fmt.Println(ipv6Addr.Mask(ipv6Mask))

}

192.0.2.0
2001:db8::