如何在Go语言中使用正则表达式匹配IPv6地址

package main

import (
    "fmt"
    "regexp"
)

func main() {
    // IPv6 address pattern
    pattern := `^([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$`

    // IPv6 addresses to match
    addresses := []string{
        "2001:0db8:85a3:0000:0000:8a2e:0370:7334",
        "2001:db8:85a3:0:0:8a2e:370:7334",
        "2001:db8:85a3::8a2e:370:7334",
        "2001:db8::8a2e:370:7334",
        "2001::8a2e:370:7334",
        "::1",
        "::",
    }

    // Compile the regular expression pattern
    regExp, err := regexp.Compile(pattern)
    if err != nil {
        fmt.Println("Invalid pattern:", err)
        return
    }

    // Match the addresses against the pattern
    for _, address := range addresses {
        if regExp.MatchString(address) {
            fmt.Printf("%s is a valid IPv6 address.
", address)
        } else {
            fmt.Printf("%s is not a valid IPv6 address.
", address)
        }
    }
}

2001:0db8:85a3:0000:0000:8a2e:0370:7334 is a valid IPv6 address.
2001:db8:85a3:0:0:8a2e:370:7334 is a valid IPv6 address.
2001:db8:85a3::8a2e:370:7334 is a valid IPv6 address.
2001:db8::8a2e:370:7334 is a valid IPv6 address.
2001::8a2e:370:7334 is a valid IPv6 address.
::1 is a valid IPv6 address.
:: is a valid IPv6 address.