{"published":"2026-08-06 00:00:00","blog_title":"\u30e9\u30f3\u30c9ML","width":"100%","provider_url":"https://hatena.blog","author_name":"round-rand","author_url":"https://blog.hatena.ne.jp/round-rand/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fml-rand-note.hatenablog.com%2Fentry%2Fcsharp%2Fstring-uppercase-lowercase\" title=\"\u3010C#\u3011\u6587\u5b57\u5217\u3092\u5927\u6587\u5b57\u30fb\u5c0f\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u65b9\u6cd5\uff08ToUpper\u30fbToLower\u306e\u4f7f\u3044\u65b9\uff09 - \u30e9\u30f3\u30c9ML\" 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":null,"title":"\u3010C#\u3011\u6587\u5b57\u5217\u3092\u5927\u6587\u5b57\u30fb\u5c0f\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u65b9\u6cd5\uff08ToUpper\u30fbToLower\u306e\u4f7f\u3044\u65b9\uff09","categories":["C#"],"url":"https://ml-rand-note.hatenablog.com/entry/csharp/string-uppercase-lowercase","height":"190","type":"rich","blog_url":"https://ml-rand-note.hatenablog.com/","description":"\u6587\u5b57\u5217\u3092\u5927\u6587\u5b57\u306b\u5909\u63db\uff1aToUpper \u6587\u5b57\u5217\u3092\u5927\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u3068\u304d\u306fToUpper\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3044\u307e\u3059\u3002 \u5143\u306e\u6587\u5b57\u5217\u306f\u5909\u308f\u3089\u306a\u3044\u70b9\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002 \u30bd\u30fc\u30b9\u30b3\u30fc\u30c9 string str = \"hello\"; string upperStr = str.ToUpper(); Console.WriteLine(str); Console.WriteLine(upperStr); \u5b9f\u884c\u7d50\u679c hello HELLO \u6587\u5b57\u5217\u3092\u5c0f\u6587\u5b57\u306b\u5909\u63db\uff1aToLower \u6587\u5b57\u5217\u3092\u5c0f\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u3068\u304d\u306fToLower\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3044\u307e\u3059\u3002 ToUpper\u3068\u540c\u69d8\u306b\u5143\u306e\u6587\u5b57\u5217\u306f\u5909\u308f\u3089\u306a\u3044\u70b9\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002 \u30bd\u30fc\u30b9\u30b3\u30fc\u30c9 st\u2026","provider_name":"Hatena Blog","version":"1.0"}