s-takaya1027 https://blog.hatena.ne.jp/s-takaya1027/ 何かやってみるブログ https://takayasugiyama.com/ Exercise: Stringers package main import "fmt" type IPAddr [4]byte // TODO: Add a "String() string" method to IPAddr. func (ip IPAddr) String() string { return fmt.Sprintf("%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]) } func main() { hosts := map[string]IPAddr{ "loopback": {127, 0, 0, 1}, "googleDNS": {… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftakayasugiyama.com%2Fentry%2F2020%2F08%2F03%2F191419" title="A Tour of Go 練習問題(Methods and interfaces)を解いた - 何かやってみるブログ" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn.user.blog.st-hatena.com/default_entry_og_image/145801001/1577264137525745 Hatena Blog https://hatena.blog 2020-08-03 19:14:19 rich https://takayasugiyama.com/entry/2020/08/03/191419 1.0 100%