{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbaba-s.hatenablog.com%2Fentry%2F2020%2F08%2F16%2F210000\" title=\"\u3010C#\u3011\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3092\u533a\u5225\u3057\u306a\u3044 String.Contains - \u30b3\u30ac\u30cd\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/b/baba_s/20180826/20180826160156.png","width":"100%","height":"190","description":"\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9 using System; public static class StringExt { public static bool Contains ( this string self, string value, StringComparison comparisonType ) { return self.IndexOf( value, comparisonType ) != -1; } } \u4f7f\u7528\u4f8b using System; public static class Program { private static void Main() { var str = \"Pikac\u2026","version":"1.0","categories":["C#"],"author_name":"baba_s","provider_url":"https://hatena.blog","title":"\u3010C#\u3011\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3092\u533a\u5225\u3057\u306a\u3044 String.Contains","url":"https://baba-s.hatenablog.com/entry/2020/08/16/210000","blog_title":"\u30b3\u30ac\u30cd\u30d6\u30ed\u30b0","published":"2020-08-16 21:00:00","blog_url":"https://baba-s.hatenablog.com/","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/baba_s/","type":"rich"}