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- package main
- import "fmt"
- type IPAddr [4]byte
- func (ipAddr IPAddr) String() string {
- return fmt.Sprintf("%d.%d.%d.%d", ipAddr[0], ipAddr[1], ipAddr[2], ipAddr[3])
- }
- func main() {
- hosts := map[string]IPAddr{
- "loopback": {127, 0, 0, 1},
- "googleDNS": {8, 8, 8, 8},
- }
- for name, ip := range hosts {
- fmt.Printf("%v: %v\n", name, ip)
- }
- }
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