{"author_url":"https://blog.hatena.ne.jp/ryuichi1208/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fryuichi1208.hateblo.jp%2Fentry%2F2021%2F02%2F09%2F000000\" title=\"\u3010Go\u3011\u6587\u5b57\u5217\u64cd\u4f5cTips - \u5730\u65b9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u7fd2\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"ryuichi1208","title":"\u3010Go\u3011\u6587\u5b57\u5217\u64cd\u4f5cTips","blog_url":"https://ryuichi1208.hateblo.jp/","url":"https://ryuichi1208.hateblo.jp/entry/2021/02/09/000000","image_url":null,"blog_title":"\u5730\u65b9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u7fd2\u65e5\u8a18","description":"\u6587\u5b57\u5217\u306e\u7d50\u5408 s := \"ABCDEFG\" s = s + \"hijklmn\" fmt.Println(s) // -> \"ABCDEFhijklmn\" \u6587\u5b57\u5217\u306e \u5927\u6587\u5b57\u3001\u5c0f\u6587\u5b57\u5909\u63db s = \"ABCDEFGhijklmn\" fmt.Println(strings.ToUpper(s)) // -> \"ABCDEFHIJKLMN\" fmt.Println(strings.ToLower(s)) // -> \"abcdefhijklmn\" \u6587\u5b57\u5217\u306e\u90e8\u5206\u53d6\u5f97 s = \"ABCDEFGhijklmn\" fmt.Println(s[4:10]) // -> \"EFGhij\" fmt.Println(s\u2026","provider_url":"https://hatena.blog","version":"1.0","categories":["Go"],"height":"190","provider_name":"Hatena Blog","type":"rich","published":"2021-02-09 00:00:00","width":"100%"}