{"id":1428,"date":"2024-12-05T13:25:06","date_gmt":"2024-12-05T04:25:06","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1428"},"modified":"2025-03-24T08:50:41","modified_gmt":"2025-03-23T23:50:41","slug":"%e3%80%90%e5%ae%8c%e5%85%a8%e8%a7%a3%e8%aa%ac%e3%80%91c-12%e3%81%ae%e9%9d%a9%e6%96%b0%e7%9a%84%e3%81%aa%e6%96%b0%e6%a9%9f%e8%83%bd%e3%81%a8%e5%ae%9f%e8%b7%b5%e7%9a%84%e3%81%aa%e6%b4%bb%e7%94%a8","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1428","title":{"rendered":"\u3010\u5b8c\u5168\u89e3\u8aac\u3011C# 12\u306e\u9769\u65b0\u7684\u306a\u65b0\u6a5f\u80fd\u3068\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u6cd5 &#8211; \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306e\u305f\u3081\u306e\u5177\u4f53\u4f8b\u4ed8\u304d"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>## \u306f\u3058\u3081\u306b<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u304c\u767b\u5834\u3057\u3001\u958b\u767a\u8005\u306e\u751f\u7523\u6027\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u308b\u65b0\u6a5f\u80fd\u304c\u591a\u6570\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5f0f\u306a\u3069\u3001\u6ce8\u76ee\u306e\u65b0\u6a5f\u80fd\u306e\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u6cd5\u304b\u3089\u3001\u65e2\u5b58\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3078\u306e\u5c0e\u5165\u6226\u7565\u307e\u3067\u3001\u73fe\u5834\u3067\u5373\u6d3b\u7528\u3067\u304d\u308b\u60c5\u5831\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u672c\u8a18\u4e8b\u3067\u5b66\u3079\u308b\u3053\u3068<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">C# 12\u306e\u4e3b\u8981\u306a\u65b0\u6a5f\u80fd\u3068\u305d\u306e\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u65e2\u5b58\u30b3\u30fc\u30c9\u3092\u52b9\u7387\u7684\u306b\u30e2\u30c0\u30f3\u5316\u3059\u308b\u65b9\u6cd5<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3059\u308b\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u52b9\u679c\u7684\u306a\u5c0e\u5165\u624b\u9806<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u304b\u3089\u306e\u6bb5\u968e\u7684\u306a\u79fb\u884c\u6226\u7565<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">C# 12\u3067\u8ffd\u52a0\u3055\u308c\u305f\u753b\u671f\u7684\u306a\u65b0\u6a5f\u80fd\u306e\u5168\u5bb9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u5b9f\u73fe\u3059\u308b\u30b9\u30de\u30fc\u30c8\u306a\u521d\u671f\u5316\u51e6\u7406<\/a>      <\/li>      <li>        <a href=\"#i-2\">\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5f0f\u306b\u3088\u308b\u76f4\u611f\u7684\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u5b9a\u7fa9<\/a>      <\/li>      <li>        <a href=\"#i-3\">\u30e9\u30e0\u30c0\u5f0f\u306e\u6539\u5584\u304c\u3082\u305f\u3089\u3059\u7c21\u6f54\u306a\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-4\">\u65b0\u6a5f\u80fd\u306e\u307e\u3068\u3081<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-5\">\u5b9f\u8df5\u3067\u4f7f\u3048\u308b\uff01C# 12\u306e\u5177\u4f53\u7684\u306a\u6d3b\u7528\u30b7\u30fc\u30f3<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-6\">\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u3092\u30e2\u30c0\u30f3\u5316\u3059\u308b\u5177\u4f53\u7684\u306a\u624b\u9806<\/a>      <\/li>      <li>        <a href=\"#i-8\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3059\u308b\u65b0\u6a5f\u80fd\u306e\u4f7f\u3044\u6240<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-10\">\u30c1\u30fc\u30e0\u958b\u767a\u3067\u6d3b\u304d\u308b\u65b0\u6a5f\u80fd\u306e\u52b9\u679c\u7684\u306a\u5c0e\u5165\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-13\">C# 12\u3078\u306e\u79fb\u884c\u6642\u306e\u91cd\u8981\u306a\u6ce8\u610f\u70b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-14\">\u7834\u58ca\u7684\u5909\u66f4\u306b\u3088\u308b\u6f5c\u5728\u7684\u306a\u4e92\u63db\u6027\u306e\u554f\u984c<\/a>      <\/li>      <li>        <a href=\"#i-16\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3068\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-17\">\u65e2\u5b58\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306e\u6bb5\u968e\u7684\u306a\u5c0e\u5165\u6226\u7565<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-20\">C# 12\u3092\u4f7f\u3063\u305f\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-21\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u6d3b\u7528\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-22\">\u30c7\u30fc\u30bf\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u52b9\u7387\u5316\u4e8b\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-23\">\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3067\u306e\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-24\">\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u306e\u307e\u3068\u3081<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-25\">C# 12\u3067\u5b9f\u73fe\u3059\u308b\u6b21\u4e16\u4ee3\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b9\u30bf\u30a4\u30eb<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-26\">\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u4e21\u7acb\u3059\u308b\u65b0\u3057\u3044\u66f8\u304d\u65b9<\/a>      <\/li>      <li>        <a href=\"#i-27\">\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u306e\u524a\u6e1b\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-28\">\u5c06\u6765\u3092\u898b\u636e\u3048\u305f\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306e\u63d0\u6848<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-29\">\u9769\u65b0\u7684\u306a\u65b0\u6a5f\u80fd\u3068\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u6cd5\u306e\u307e\u3068\u3081<\/a>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">C# 12\u3067\u8ffd\u52a0\u3055\u308c\u305f\u753b\u671f\u7684\u306a\u65b0\u6a5f\u80fd\u306e\u5168\u5bb9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u3067\u306f\u3001\u30b3\u30fc\u30c9\u306e\u7c21\u6f54\u6027\u3068\u8868\u73fe\u529b\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u9769\u65b0\u7684\u306a\u6a5f\u80fd\u304c\u591a\u6570\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u65b0\u6a5f\u80fd\u306f\u3001\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a\u3068\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u6539\u5584\u306b\u5927\u304d\u304f\u8ca2\u732e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u5b9f\u73fe\u3059\u308b\u30b9\u30de\u30fc\u30c8\u306a\u521d\u671f\u5316\u51e6\u7406<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u3001\u30af\u30e9\u30b9\u30ec\u30d9\u30eb\u3067\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5b9a\u7fa9\u3067\u304d\u308b\u65b0\u6a5f\u80fd\u3067\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u521d\u671f\u5316\u51e6\u7406\u304c\u3088\u308a\u7c21\u6f54\u3067\u7406\u89e3\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5f93\u6765\u306e\u66f8\u304d\u65b9\npublic class Person\n{\n    private readonly string name;\n    private readonly int age;\n\n    public Person(string name, int age)\n    {\n        this.name = name;\n        this.age = age;\n    }\n}\n\n\/\/ C# 12\u3067\u306e\u65b0\u3057\u3044\u66f8\u304d\u65b9\npublic class Person(string name, int age)\n{\n    public string Name =&gt; name;\n    public int Age =&gt; age;\n}<\/pre>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u3053\u306e\u6a5f\u80fd\u306e\u4e3b\u306a\u5229\u70b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u306e\u524a\u6e1b<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u81ea\u52d5\u7684\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u5316<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u8a2d\u8a08\u306e\u4fc3\u9032<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5f0f\u306b\u3088\u308b\u76f4\u611f\u7684\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u5b9a\u7fa9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5f0f\u306f\u3001\u914d\u5217\u3084\u30ea\u30b9\u30c8\u306a\u3069\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u3088\u308a\u7c21\u6f54\u306b\u521d\u671f\u5316\u3067\u304d\u308b\u65b0\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u914d\u5217\u306e\u521d\u671f\u5316\nint[] numbers = [1, 2, 3, 4, 5];\n\n\/\/ \u30ea\u30b9\u30c8\u306e\u521d\u671f\u5316\nList&lt;string&gt; fruits = [\"Apple\", \"Banana\", \"Orange\"];\n\n\/\/ \u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u306e\u4f7f\u7528\nint[] moreNumbers = [..numbers, 6, 7, 8];\n\n\/\/ \u30ab\u30b9\u30bf\u30e0\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u521d\u671f\u5316\npublic class CustomCollection&lt;T&gt; : IEnumerable&lt;T&gt;\n{\n    public CustomCollection(IEnumerable&lt;T&gt; items) { \/* ... *\/ }\n}\n\nvar custom = new CustomCollection&lt;int&gt;([1, 2, 3]);<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">\u30e9\u30e0\u30c0\u5f0f\u306e\u6539\u5584\u304c\u3082\u305f\u3089\u3059\u7c21\u6f54\u306a\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u3067\u306f\u3001\u30e9\u30e0\u30c0\u5f0f\u304c\u3055\u3089\u306b\u5f37\u5316\u3055\u308c\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u306a\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6301\u3064\u30e9\u30e0\u30c0\u5f0f\nvar greet = (string name = \"Guest\") =&gt; $\"Hello, {name}!\";\n\n\/\/ \u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u578b\u63a8\u8ad6\u306e\u6539\u5584\nvar process = (IEnumerable&lt;int&gt; numbers) =&gt; numbers.Where(n =&gt; n &gt; 0);\n\n\/\/ \u3088\u308a\u7c21\u6f54\u306a\u30e1\u30bd\u30c3\u30c9\u30b0\u30eb\u30fc\u30d7\u5909\u63db\nvar numbers = Enumerable.Range(1, 10);\nvar doubled = numbers.Select(*2); \/\/ \u65b0\u3057\u3044\u69cb\u6587<\/pre>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u3053\u308c\u3089\u306e\u65b0\u6a5f\u80fd\u306e\u7279\u5fb4<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u30b3\u30fc\u30c9\u306e\u7c21\u6f54\u6027\u5411\u4e0a<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u578b\u5b89\u5168\u6027\u306e\u5f37\u5316<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\u52b9\u7387\u5316<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u65b0\u6a5f\u80fd\u306e\u307e\u3068\u3081<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u306e\u65b0\u6a5f\u80fd\u306f\u3001\u4ee5\u4e0b\u306e\u89b3\u70b9\u3067\u5927\u304d\u306a\u4fa1\u5024\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u306e\u524a\u6e1b<\/li>\n\n\n\n<li>\u3088\u308a\u76f4\u611f\u7684\u306a\u69cb\u6587<\/li>\n\n\n\n<li>\u7c21\u6f54\u306a\u8868\u73fe\u529b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u54c1\u8cea\u306e\u6539\u5584\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>\u578b\u5b89\u5168\u6027\u306e\u5f37\u5316<\/li>\n\n\n\n<li>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u8a2d\u8a08\u306e\u4fc3\u9032<\/li>\n\n\n\n<li>\u30d0\u30b0\u306e\u767a\u751f\u30ea\u30b9\u30af\u4f4e\u6e1b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u4fdd\u5b88\u6027\u306e\u5411\u4e0a\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>\u610f\u56f3\u306e\u660e\u78ba\u306a\u8868\u73fe<\/li>\n\n\n\n<li>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306e\u5bb9\u6613\u3055<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-5\">\u5b9f\u8df5\u3067\u4f7f\u3048\u308b\uff01C# 12\u306e\u5177\u4f53\u7684\u306a\u6d3b\u7528\u30b7\u30fc\u30f3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u306e\u65b0\u6a5f\u80fd\u306f\u3001\u5b9f\u969b\u306e\u958b\u767a\u73fe\u5834\u3067\u3069\u306e\u3088\u3046\u306b\u6d3b\u7528\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u5177\u4f53\u7684\u306a\u30b7\u30fc\u30f3\u3054\u3068\u306b\u3001\u305d\u306e\u52b9\u679c\u7684\u306a\u4f7f\u3044\u65b9\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u3092\u30e2\u30c0\u30f3\u5316\u3059\u308b\u5177\u4f53\u7684\u306a\u624b\u9806<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u306e\u30e2\u30c0\u30f3\u5316\u306f\u3001\u591a\u304f\u306e\u958b\u767a\u30c1\u30fc\u30e0\u304c\u76f4\u9762\u3059\u308b\u8ab2\u984c\u3067\u3059\u3002C# 12\u306e\u65b0\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u306a\u30e2\u30c0\u30f3\u5316\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-7\">\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u3088\u308b\u7c21\u7d20\u5316<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\npublic class CustomerData\n{\n    private readonly string _name;\n    private readonly string _email;\n    private readonly DateTime _registrationDate;\n\n    public CustomerData(string name, string email, DateTime registrationDate)\n    {\n        _name = name;\n        _email = email;\n        _registrationDate = registrationDate;\n    }\n\n    public string GetCustomerInfo() =&gt; $\"{_name} ({_email})\";\n}\n\n\/\/ \u30e2\u30c0\u30f3\u5316\u5f8c\u306e\u30b3\u30fc\u30c9\npublic class CustomerData(string name, string email, DateTime registrationDate)\n{\n    public string GetCustomerInfo() =&gt; $\"{name} ({email})\";\n    public bool IsNewCustomer =&gt; registrationDate &gt; DateTime.Now.AddMonths(-1);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3059\u308b\u65b0\u6a5f\u80fd\u306e\u4f7f\u3044\u6240<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u306e\u65b0\u6a5f\u80fd\u306f\u3001\u7279\u5b9a\u306e\u30b7\u30fc\u30f3\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-9\">\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c\u306e\u6700\u9069\u5316<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class DataProcessor\n{\n    \/\/ \u5f93\u6765\u306e\u65b9\u6cd5\n    private readonly List&lt;int&gt; _cache = new List&lt;int&gt; { 1, 2, 3, 4, 5 };\n\n    \/\/ C# 12\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5f0f\u3092\u4f7f\u7528\n    private readonly List&lt;int&gt; _optimizedCache = [1, 2, 3, 4, 5];\n\n    public IEnumerable&lt;int&gt; ProcessData(IEnumerable&lt;int&gt; input)\n    {\n        \/\/ \u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u306b\u3088\u308b\u52b9\u7387\u7684\u306a\u7d50\u5408\n        return [..input, .._optimizedCache];\n    }\n}<\/pre>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u306e\u30dd\u30a4\u30f3\u30c8<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u306e\u6700\u9069\u5316<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u64cd\u4f5c\u306e\u52b9\u7387\u5316<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u521d\u671f\u5316\u51e6\u7406\u306e\u9ad8\u901f\u5316<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30c1\u30fc\u30e0\u958b\u767a\u3067\u6d3b\u304d\u308b\u65b0\u6a5f\u80fd\u306e\u52b9\u679c\u7684\u306a\u5c0e\u5165\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u65b0\u6a5f\u80fd\u5c0e\u5165\u306b\u306f\u3001\u6bb5\u968e\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-11\">1. \u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306e\u66f4\u65b0<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u63a8\u5968\u3055\u308c\u308b\u66f8\u304d\u65b9\u306e\u4f8b\npublic class TeamProject(string projectName, DateTime deadline)\n{\n    \/\/ \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u56fa\u6709\u306e\u30ed\u30b8\u30c3\u30af\n    public bool IsOverdue =&gt; DateTime.Now &gt; deadline;\n\n    \/\/ \u30c1\u30fc\u30e0\u5171\u901a\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30e1\u30bd\u30c3\u30c9\n    public static TeamProject CreateUrgent(string name) =&gt;\n        new(name, DateTime.Now.AddDays(7));\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-12\">2. \u6bb5\u968e\u7684\u306a\u5c0e\u5165\u8a08\u753b<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u65b0\u898f\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\uff1a\u3059\u3079\u3066\u306e\u65b0\u6a5f\u80fd\u3092\u7a4d\u6975\u7684\u306b\u6d3b\u7528<\/li>\n\n\n\n<li>\u65e2\u5b58\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\uff1a\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u6642\u306b\u6bb5\u968e\u7684\u306b\u5c0e\u5165<\/li>\n\n\n\n<li>\u5171\u901a\u30e9\u30a4\u30d6\u30e9\u30ea\uff1a\u4e92\u63db\u6027\u3092\u8003\u616e\u3057\u306a\u304c\u3089\u614e\u91cd\u306b\u5c0e\u5165<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0e\u5165\u6642\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n<div id=\"id-69d1fe50-e80f-4ed5-81b5-d22ba70818e4\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30d5\u30a7\u30fc\u30ba<\/th><th>\u5b9f\u65bd\u5185\u5bb9<\/th><th>\u6ce8\u610f\u70b9<\/th><\/tr><\/thead><tbody><tr><td>\u8a08\u753b<\/td><td>\u5bfe\u8c61\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u9078\u5b9a<\/td><td>\u4f9d\u5b58\u95a2\u4fc2\u306e\u78ba\u8a8d<\/td><\/tr><tr><td>\u8a66\u884c<\/td><td>\u5c0f\u898f\u6a21\u306a\u9069\u7528\u30c6\u30b9\u30c8<\/td><td>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u691c\u8a3c<\/td><\/tr><tr><td>\u5c55\u958b<\/td><td>\u30c1\u30fc\u30e0\u5168\u4f53\u3078\u306e\u5c55\u958b<\/td><td>\u30ec\u30d3\u30e5\u30fc\u57fa\u6e96\u306e\u8abf\u6574<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u6d3b\u7528\u30b7\u30fc\u30f3\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u3067\u3001C# 12\u306e\u65b0\u6a5f\u80fd\u3092\u6700\u5927\u9650\u306b\u6d3b\u7528\u3057\u3001\u958b\u767a\u52b9\u7387\u3068\u30b3\u30fc\u30c9\u54c1\u8cea\u306e\u5411\u4e0a\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-13\">C# 12\u3078\u306e\u79fb\u884c\u6642\u306e\u91cd\u8981\u306a\u6ce8\u610f\u70b9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u3078\u306e\u79fb\u884c\u306f\u3001\u69d8\u3005\u306a\u5229\u70b9\u3092\u3082\u305f\u3089\u3059\u4e00\u65b9\u3067\u3001\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6ce8\u610f\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u3092\u4e8b\u524d\u306b\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u3067\u3001\u30b9\u30e0\u30fc\u30ba\u306a\u79fb\u884c\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u7834\u58ca\u7684\u5909\u66f4\u306b\u3088\u308b\u6f5c\u5728\u7684\u306a\u4e92\u63db\u6027\u306e\u554f\u984c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u3078\u306e\u79fb\u884c\u6642\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u7834\u58ca\u7684\u5909\u66f4\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-15\">\u4e3b\u306a\u4e92\u63db\u6027\u306e\u554f\u984c\u3068\u5bfe\u51e6\u65b9\u6cd5<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ 1. \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5f0f\u306e\u5909\u66f4\u306b\u3088\u308b\u5f71\u97ff\n\/\/ \u5f93\u6765\u306e\u30b3\u30fc\u30c9\nvar list = new List&lt;int&gt; { 1, 2, 3 };\n\n\/\/ C# 12\u3067\u306e\u65b0\u3057\u3044\u66f8\u304d\u65b9\nvar list = [1, 2, 3];\n\n\/\/ \u6ce8\u610f\uff1a\u578b\u63a8\u8ad6\u306e\u7d50\u679c\u304c\u7570\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\nvar oldWay = { 1, 2, 3 }; \/\/ \u521d\u671f\u5316\u5b50\nvar newWay = [1, 2, 3];   \/\/ int[]\u3068\u3057\u3066\u63a8\u8ad6\u3055\u308c\u308b<\/pre>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u4e92\u63db\u6027\u306e\u554f\u984c\u306b\u5bfe\u3059\u308b\u5bfe\u7b56<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u8b66\u544a\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u5358\u4f53\u30c6\u30b9\u30c8\u306e\u5b9f\u65bd<\/li>\n\n\n\n<li>\u6bb5\u968e\u7684\u306a\u79fb\u884c\u8a08\u753b\u306e\u7b56\u5b9a<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3068\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u65b0\u6a5f\u80fd\u306e\u63a1\u7528\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class PerformanceConsiderations\n{\n    \/\/ \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6ce8\u610f\u70b9\n    public class DataContainer(IEnumerable&lt;string&gt; items)\n    {\n        \/\/ \u30b9\u30d7\u30ec\u30c3\u30c9\u6f14\u7b97\u5b50\u4f7f\u7528\u6642\u306e\u30e1\u30e2\u30ea\u6d88\u8cbb\u306b\u6ce8\u610f\n        private readonly List&lt;string&gt; _cached = [..items];\n\n        \/\/ \u5927\u91cf\u30c7\u30fc\u30bf\u51e6\u7406\u6642\u306f\u5f93\u6765\u306e\u65b9\u6cd5\u304c\u52b9\u7387\u7684\u306a\u5834\u5408\u3082\n        private readonly List&lt;string&gt; _optimized = new(items);\n    }\n\n    \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u4f8b\n    public static class DataProcessor\n    {\n        \/\/ \u5f93\u6765\u306e\u65b9\u6cd5\n        public static IEnumerable&lt;T&gt; Process&lt;T&gt;(IEnumerable&lt;T&gt; source) =&gt;\n            source.ToList();\n\n        \/\/ \u6700\u9069\u5316\u3055\u308c\u305f\u65b9\u6cd5\n        public static IEnumerable&lt;T&gt; ProcessOptimized&lt;T&gt;(IEnumerable&lt;T&gt; source) =&gt;\n            source is List&lt;T&gt; list ? list : [..source];\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u65e2\u5b58\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306e\u6bb5\u968e\u7684\u306a\u5c0e\u5165\u6226\u7565<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u65e2\u5b58\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3078\u306eC# 12\u306e\u5c0e\u5165\u306f\u3001\u8a08\u753b\u7684\u306b\u9032\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-18\">1. \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8a55\u4fa1<\/h4>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u5c0e\u5165\u6226\u7565\u306e\u30dd\u30a4\u30f3\u30c8<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u4f9d\u5b58\u95a2\u4fc2\u306e\u78ba\u8a8d<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u5f71\u97ff\u7bc4\u56f2\u306e\u7279\u5b9a<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt wp-block-paragraph\">\u30ea\u30b9\u30af\u8a55\u4fa1<\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-19\">2. \u79fb\u884c\u8a08\u753b\u306e\u7b56\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6bb5\u968e\u7684\u306a\u79fb\u884c\u4f8b\nnamespace LegacyToModern\n{\n    \/\/ \u30d5\u30a7\u30fc\u30ba1\uff1a\u65b0\u898f\u30b3\u30fc\u30c9\u3067\u306e\u5c0e\u5165\n    public class NewFeature(string name)\n    {\n        public string Description =&gt; $\"New feature: {name}\";\n    }\n\n    \/\/ \u30d5\u30a7\u30fc\u30ba2\uff1a\u65e2\u5b58\u30b3\u30fc\u30c9\u306e\u6bb5\u968e\u7684\u66f4\u65b0\n    public class ExistingFeature\n    {\n        \/\/ \u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u306f\u305d\u306e\u307e\u307e\u7dad\u6301\n        private readonly string _name;\n        public ExistingFeature(string name) =&gt; _name = name;\n\n        \/\/ \u65b0\u6a5f\u80fd\u3092\u6d3b\u7528\u3057\u305f\u62e1\u5f35\n        public static ExistingFeature CreateWithValidation(string name) =&gt;\n            string.IsNullOrEmpty(name) \n                ? throw new ArgumentException(\"Name is required\") \n                : new(name);\n    }\n}<\/pre>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u79fb\u884c\u6642\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<p class=\"wp-block-paragraph\">\u30b3\u30f3\u30d1\u30a4\u30e9\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u78ba\u8a8d<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt wp-block-paragraph\">\u4f9d\u5b58\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4e92\u63db\u6027\u691c\u8a3c<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt wp-block-paragraph\">\u30c6\u30b9\u30c8\u30ab\u30d0\u30ec\u30c3\u30b8\u306e\u78ba\u4fdd<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt wp-block-paragraph\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt wp-block-paragraph\">\u30c1\u30fc\u30e0\u5185\u3067\u306e\u77e5\u8b58\u5171\u6709<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u6ce8\u610f\u70b9\u3092\u8003\u616e\u3059\u308b\u3053\u3068\u3067\u3001C# 12\u3078\u306e\u79fb\u884c\u3092\u3088\u308a\u5b89\u5168\u304b\u3064\u52b9\u679c\u7684\u306b\u9032\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-20\">C# 12\u3092\u4f7f\u3063\u305f\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u306e\u65b0\u6a5f\u80fd\u3092\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u6d3b\u7528\u3059\u308b\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u5b9f\u52d9\u3067\u5373\u6d3b\u7528\u3067\u304d\u308b\u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u4f8b\u3092\u901a\u3058\u3066\u3001\u65b0\u6a5f\u80fd\u306e\u52b9\u679c\u7684\u306a\u4f7f\u3044\u65b9\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u6d3b\u7528\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">ASP.NET Core\u3067\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u3001C# 12\u306e\u65b0\u6a5f\u80fd\u3092\u6d3b\u7528\u3057\u305f\u5b9f\u88c5\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ DTO\u306e\u5b9a\u7fa9\npublic class ProductDto(int id, string name, decimal price)\n{\n    public bool IsValid =&gt; !string.IsNullOrEmpty(name) &amp;&amp; price &gt; 0;\n}\n\n\/\/ \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e\u5b9f\u88c5\npublic class ProductController : ControllerBase\n{\n    private readonly ILogger&lt;ProductController&gt; _logger;\n    private static readonly List&lt;string&gt; _validCategories = [\"Electronics\", \"Books\", \"Clothing\"];\n\n    public ProductController(ILogger&lt;ProductController&gt; logger) =&gt; _logger = logger;\n\n    [HttpGet(\"products\/{category}\")]\n    public async Task&lt;IActionResult&gt; GetProducts(string category)\n    {\n        if (!_validCategories.Contains(category))\n        {\n            _logger.LogWarning(\"Invalid category requested: {Category}\", category);\n            return BadRequest(\"Invalid category\");\n        }\n\n        try\n        {\n            var products = await FetchProducts(category);\n            return Ok([..products.Where(p =&gt; p.IsValid)]);\n        }\n        catch (Exception ex)\n        {\n            _logger.LogError(ex, \"Error fetching products\");\n            return StatusCode(500, \"Internal server error\");\n        }\n    }\n\n    private async Task&lt;IEnumerable&lt;ProductDto&gt;&gt; FetchProducts(string category)\n    {\n        \/\/ \u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3084API\u304b\u3089\u53d6\u5f97\n        var mockProducts = category switch\n        {\n            \"Electronics\" =&gt; new ProductDto[]\n            {\n                new(1, \"Laptop\", 999.99m),\n                new(2, \"Smartphone\", 699.99m),\n                new(3, \"Tablet\", 499.99m)\n            },\n            \"Books\" =&gt; new ProductDto[]\n            {\n                new(4, \"C# Programming Guide\", 49.99m),\n                new(5, \"Design Patterns\", 39.99m),\n                new(6, \"Algorithms\", 29.99m)\n            },\n            \"Clothing\" =&gt; new ProductDto[]\n            {\n                new(7, \"T-Shirt\", 19.99m),\n                new(8, \"Jeans\", 59.99m),\n                new(9, \"Jacket\", 89.99m)\n            },\n            _ =&gt; Array.Empty&lt;ProductDto&gt;()\n        };\n\n        \/\/ \u5b9f\u969b\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u975e\u540c\u671f\u51e6\u7406\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\n        await Task.Delay(100);\n\n        return mockProducts;\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u30c7\u30fc\u30bf\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u52b9\u7387\u5316\u4e8b\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u6d3b\u7528\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30c7\u30fc\u30bf\u51e6\u7406\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u5b9f\u88c5\npublic class DataProcessor(ILogger logger, IConfiguration config)\n{\n    private readonly string _connectionString = config.GetConnectionString(\"DefaultConnection\")\n        ?? throw new InvalidOperationException(\"Connection string not found\");\n\n    private static readonly HashSet&lt;string&gt; _validTypes = [\"user\", \"order\", \"product\"];\n\n    public async Task&lt;ProcessingResult&gt; ProcessDataAsync(string dataType, IEnumerable&lt;string&gt; rawData)\n    {\n        if (!_validTypes.Contains(dataType))\n        {\n            logger.LogError(\"Invalid data type: {DataType}\", dataType);\n            return new ProcessingResult(false, \"Invalid data type\");\n        }\n\n        try\n        {\n            var processedData = [..rawData.Select(ProcessSingleItem)];\n            await SaveToDatabase(processedData);\n            return new ProcessingResult(true, $\"Processed {processedData.Length} items\");\n        }\n        catch (Exception ex)\n        {\n            logger.LogError(ex, \"Processing failed\");\n            return new ProcessingResult(false, ex.Message);\n        }\n    }\n}\n\npublic record ProcessingResult(bool Success, string Message);<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-23\">\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3067\u306e\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u304a\u3051\u308b\u5b9f\u88c5\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30e1\u30c3\u30bb\u30fc\u30b8\u30d6\u30ed\u30fc\u30ab\u30fc\u3068\u306e\u7d71\u5408\u4f8b\npublic class MessageHandler(IMessageBroker broker, IMetricsCollector metrics)\n{\n    private static readonly Dictionary&lt;string, int&gt; _retryLimits = new()\n    {\n        [\"critical\"] = 5,\n        [\"normal\"] = 3,\n        [\"low\"] = 1\n    };\n\n    public async Task HandleMessageAsync(Message message)\n    {\n        var priority = message.Priority.ToLower();\n        var retryLimit = _retryLimits.GetValueOrDefault(priority, 1);\n\n        for (var attempt = 1; attempt &lt;= retryLimit; attempt++)\n        {\n            try\n            {\n                await ProcessMessage(message);\n                metrics.RecordSuccess(message.Type);\n                return;\n            }\n            catch (Exception ex) when (attempt &lt; retryLimit)\n            {\n                await Task.Delay(TimeSpan.FromSeconds(Math.Pow(2, attempt)));\n                metrics.RecordRetry(message.Type);\n            }\n        }\n    }\n}\n\n\/\/ \u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\npublic class CircuitBreaker(string name, TimeSpan resetTimeout)\n{\n    private readonly SemaphoreSlim _lock = new(1);\n    private readonly Queue&lt;DateTime&gt; _failures = new();\n    private static readonly int _failureThreshold = 5;\n    private static readonly TimeSpan _monitoringWindow = TimeSpan.FromMinutes(1);\n\n    public async Task&lt;bool&gt; ExecuteAsync(Func&lt;Task&gt; action)\n    {\n        await _lock.WaitAsync();\n        try\n        {\n            _failures.EnqueueAndDequeue(DateTime.UtcNow, _monitoringWindow);\n            if (_failures.Count &gt;= _failureThreshold)\n            {\n                return false;\n            }\n        }\n        finally\n        {\n            _lock.Release();\n        }\n\n        try\n        {\n            await action();\n            return true;\n        }\n        catch\n        {\n            await _lock.WaitAsync();\n            try\n            {\n                _failures.Enqueue(DateTime.UtcNow);\n            }\n            finally\n            {\n                _lock.Release();\n            }\n            return false;\n        }\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-24\">\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u306e\u307e\u3068\u3081<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u5b9f\u88c5\u4f8b\u306f\u3001C# 12\u306e\u65b0\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u4ee5\u4e0b\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002<br>\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3082\u3001\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u53c2\u8003\u306b\u3001\u72b6\u6cc1\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u5b9f\u88c5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u65b0\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u5b9f\u73fe\u3067\u304d\u308b\u3053\u3068<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u306e\u6539\u5584<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u5805\u7262\u5316<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-good-alt wp-block-paragraph\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-25\">C# 12\u3067\u5b9f\u73fe\u3059\u308b\u6b21\u4e16\u4ee3\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b9\u30bf\u30a4\u30eb<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u306e\u65b0\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u6d17\u7df4\u3055\u308c\u305f\u65b0\u3057\u3044\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b9\u30bf\u30a4\u30eb\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u3092\u4ea4\u3048\u306a\u304c\u3089\u3001\u30e2\u30c0\u30f3\u306aC#\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u4e21\u7acb\u3059\u308b\u65b0\u3057\u3044\u66f8\u304d\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u3067\u306f\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u3092\u3088\u308a\u660e\u78ba\u306b\u8868\u73fe\u3067\u304d\u308b\u65b0\u3057\u3044\u66f8\u304d\u65b9\u304c\u5c0e\u5165\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5f93\u6765\u306e\u5b9f\u88c5\npublic class OrderProcessor\n{\n    private readonly ILogger _logger;\n    private readonly IOrderRepository _repository;\n    private readonly IPaymentService _paymentService;\n\n    public OrderProcessor(\n        ILogger logger,\n        IOrderRepository repository,\n        IPaymentService paymentService)\n    {\n        _logger = logger;\n        _repository = repository;\n        _paymentService = paymentService;\n    }\n\n    public async Task&lt;OrderResult&gt; ProcessOrder(Order order)\n    {\n        \/\/ \u5b9f\u88c5...\n    }\n}\n\n\/\/ C# 12\u3067\u306e\u65b0\u3057\u3044\u5b9f\u88c5\npublic class OrderProcessor(\n    ILogger logger,\n    IOrderRepository repository,\n    IPaymentService paymentService)\n{\n    \/\/ \u691c\u8a3c\u30ed\u30b8\u30c3\u30af\u3092\u30e9\u30e0\u30c0\u3067\u7c21\u6f54\u306b\u8868\u73fe\n    private static readonly Func&lt;Order, bool&gt; IsValidOrder = order =&gt;\n        order is not null &amp;&amp;\n        order.Items.Count &gt; 0 &amp;&amp;\n        order.TotalAmount &gt; 0;\n\n    \/\/ \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u521d\u671f\u5316\u306e\u7c21\u7565\u5316\n    private static readonly string[] ValidStatuses = [\"Pending\", \"Processing\", \"Completed\"];\n\n    public async Task&lt;OrderResult&gt; ProcessOrder(Order order)\n    {\n        if (!IsValidOrder(order))\n        {\n            logger.LogError(\"Invalid order received\");\n            return new OrderResult(false, \"Invalid order\");\n        }\n\n        try\n        {\n            var processedItems = [..order.Items.Select(ProcessItem)];\n            await repository.SaveAsync(order with { Items = processedItems });\n            return new OrderResult(true, \"Order processed successfully\");\n        }\n        catch (Exception ex)\n        {\n            logger.LogError(ex, \"Order processing failed\");\n            return new OrderResult(false, ex.Message);\n        }\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-27\">\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u306e\u524a\u6e1b\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C# 12\u306e\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5197\u9577\u306a\u30b3\u30fc\u30c9\u3092\u5927\u5e45\u306b\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u7c21\u6f54\u306a\u5b9f\u88c5\u4f8b\npublic class CustomerService(\n    ICustomerRepository repository,\n    INotificationService notification,\n    ILogger&lt;CustomerService&gt; logger)\n{\n    \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30eb\u30fc\u30eb\u306e\u660e\u78ba\u306a\u8868\u73fe\n    private static readonly Dictionary&lt;CustomerType, ValidationRule[]&gt; ValidationRules = new()\n    {\n        [CustomerType.Individual] = \n        [\n            new ValidationRule(\"Name\", c =&gt; !string.IsNullOrEmpty(c.Name)),\n            new ValidationRule(\"Email\", c =&gt; c.Email.Contains(\"@\"))\n        ],\n        [CustomerType.Business] = \n        [\n            new ValidationRule(\"CompanyName\", c =&gt; !string.IsNullOrEmpty(c.CompanyName)),\n            new ValidationRule(\"TaxId\", c =&gt; c.TaxId.Length == 10)\n        ]\n    };\n\n    public async Task&lt;Result&lt;Customer&gt;&gt; RegisterCustomer(CustomerRegistration registration)\n    {\n        try\n        {\n            var customer = new Customer(registration);\n            var validationResults = ValidationRules[customer.Type]\n                .Select(rule =&gt; rule.Validate(customer))\n                .ToList();\n\n            if (validationResults.Any(r =&gt; !r.IsValid))\n            {\n                return new Result&lt;Customer&gt;(null, validationResults);\n            }\n\n            await repository.SaveAsync(customer);\n            await notification.SendWelcomeMessage(customer);\n\n            return new Result&lt;Customer&gt;(customer, validationResults);\n        }\n        catch (Exception ex)\n        {\n            logger.LogError(ex, \"Customer registration failed\");\n            return new Result&lt;Customer&gt;(null, [new ValidationResult(\"System\", false, ex.Message)]);\n        }\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-28\">\u5c06\u6765\u3092\u898b\u636e\u3048\u305f\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306e\u63d0\u6848<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c1\u30fc\u30e0\u958b\u767a\u306b\u304a\u3051\u308b\u65b0\u3057\u3044\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u63d0\u6848\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"csharp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u63a8\u5968\u3055\u308c\u308b\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\npublic class ModernImplementationExample(IServiceProvider services)\n{\n    \/\/ 1. \u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u6d3b\u7528\n    private readonly IEnumerable&lt;IValidator&gt; _validators = \n        services.GetServices&lt;IValidator&gt;();\n\n    \/\/ 2. \u8aad\u307f\u53d6\u308a\u5c02\u7528\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u6d3b\u7528\n    private static readonly HashSet&lt;string&gt; SupportedTypes = [\"A\", \"B\", \"C\"];\n\n    \/\/ 3. \u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3068switch\u5f0f\u306e\u7d44\u307f\u5408\u308f\u305b\n    public Result ProcessRequest(Request request) =&gt; request switch\n    {\n        { Type: var t } when !SupportedTypes.Contains(t) =&gt;\n            new Result(false, \"Unsupported type\"),\n\n        { Data: null } =&gt;\n            new Result(false, \"Data is required\"),\n\n        _ =&gt; ValidateAndProcess(request)\n    };\n\n    \/\/ 4. \u975e\u540c\u671f\u51e6\u7406\u306e\u6a19\u6e96\u7684\u306a\u30d1\u30bf\u30fc\u30f3\n    private async Task&lt;Result&gt; ValidateAndProcess(Request request)\n    {\n        var validationTasks = _validators\n            .Select(v =&gt; v.ValidateAsync(request));\n\n        var validationResults = await Task.WhenAll(validationTasks);\n\n        return validationResults.Any(r =&gt; !r.IsValid)\n            ? new Result(false, \"Validation failed\")\n            : await ProcessValidRequest(request);\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u65b0\u3057\u3044\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b9\u30bf\u30a4\u30eb\u3092\u63a1\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u54c1\u8cea\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306e\u30dd\u30a4\u30f3\u30c8<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\">\n<li>\u30a4\u30df\u30e5\u30fc\u30bf\u30d3\u30ea\u30c6\u30a3\u306e\u91cd\u8996\n<ul class=\"wp-block-list\">\n<li>\u30ec\u30b3\u30fc\u30c9\u578b\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u8aad\u307f\u53d6\u308a\u5c02\u7528\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>\u5024\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30d1\u30bf\u30fc\u30f3\u306e\u63a1\u7528<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u660e\u78ba\u306a\u4f9d\u5b58\u95a2\u4fc2\u306e\u8868\u73fe\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u4f9d\u5b58\u95a2\u4fc2\u306e\u660e\u793a\u7684\u306a\u5ba3\u8a00<\/li>\n\n\n\n<li>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u30d9\u30fc\u30b9\u306e\u8a2d\u8a08<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u6a19\u6e96\u5316\n<ul class=\"wp-block-list\">\n<li>\u7d50\u679c\u578b\u30d1\u30bf\u30fc\u30f3\u306e\u63a1\u7528<\/li>\n\n\n\n<li>\u4f8b\u5916\u306e\u9069\u5207\u306a\u30e9\u30c3\u30d4\u30f3\u30b0<\/li>\n\n\n\n<li>\u30ed\u30b0\u8a18\u9332\u306e\u7d71\u4e00\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-29\">\u9769\u65b0\u7684\u306a\u65b0\u6a5f\u80fd\u3068\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u6cd5\u306e\u307e\u3068\u3081<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>C# 12\u306e\u4e3b\u8981\u306a\u6a5f\u80fd\u5f37\u5316\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u3088\u308b\u521d\u671f\u5316\u51e6\u7406\u306e\u7c21\u7565\u5316<\/li>\n\n\n\n<li>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5f0f\u306b\u3088\u308b\u76f4\u611f\u7684\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u5b9a\u7fa9<\/li>\n\n\n\n<li>\u30e9\u30e0\u30c0\u5f0f\u306e\u6539\u5584\u306b\u3088\u308b\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u5f37\u5316<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u30b7\u30fc\u30f3\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u52b9\u7387\u7684\u306aAPI\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3067\u306e\u5805\u7262\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u79fb\u884c\u6642\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>\u7834\u58ca\u7684\u5909\u66f4\u3078\u306e\u5bfe\u5fdc\u3068\u4e92\u63db\u6027\u306e\u78ba\u4fdd<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3068\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u6bb5\u968e\u7684\u306a\u5c0e\u5165\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u63a1\u7528<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u30e2\u30c0\u30f3\u306a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b9\u30bf\u30a4\u30eb\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u91cd\u8996\u3057\u305f\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/li>\n\n\n\n<li>\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u30b3\u30fc\u30c9\u306e\u52b9\u679c\u7684\u306a\u524a\u6e1b<\/li>\n\n\n\n<li>\u5c06\u6765\u3092\u898b\u636e\u3048\u305f\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306e\u6574\u5099<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5177\u4f53\u7684\u306a\u6539\u5584\u52b9\u679c\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u306e\u6539\u5584<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u958b\u767a\u306b\u304a\u3051\u308b\u751f\u7523\u6027\u306e\u5411\u4e0a<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u6539\u5584\u306b\u3088\u308a\u3001C# 12\u306f\u73fe\u4ee3\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u306b\u304a\u3051\u308b\u8981\u6c42\u306b\u52b9\u679c\u7684\u306b\u5bfe\u5fdc\u3057\u3001\u3088\u308a\u9ad8\u54c1\u8cea\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u3092\u53ef\u80fd\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>## \u306f\u3058\u3081\u306b C# 12\u304c\u767b\u5834\u3057\u3001\u958b\u767a\u8005\u306e\u751f\u7523\u6027\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u308b\u65b0\u6a5f\u80fd\u304c\u591a\u6570\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u30d7\u30e9\u30a4\u30de\u30ea\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5f0f\u306a\u3069\u3001\u6ce8\u76ee\u306e\u65b0\u6a5f\u80fd\u306e\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u6cd5\u304b\u3089\u3001\u65e2\u5b58\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3078\u306e\u5c0e\u5165\u6226\u7565\u307e\u3067 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":2881,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,69,61],"tags":[],"class_list":["post-1428","post","type-post","status-publish","format-standard","has-post-thumbnail","category-csharp","category-csharp-best-practice","category-csharp-syntax"],"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1428","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1428"}],"version-history":[{"count":4,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1428\/revisions"}],"predecessor-version":[{"id":2898,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1428\/revisions\/2898"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/media\/2881"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}