{"id":2133,"date":"2025-03-24T08:48:13","date_gmt":"2025-03-23T23:48:13","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2133"},"modified":"2025-03-24T08:48:38","modified_gmt":"2025-03-23T23:48:38","slug":"c%e3%81%ae%e3%82%aa%e3%83%bc%e3%83%90%e3%83%bc%e3%83%a9%e3%82%a4%e3%83%89%e3%82%92%e5%ae%8c%e5%85%a8%e7%90%86%e8%a7%a3%ef%bc%81%e5%9f%ba%e7%a4%8e%e3%81%8b%e3%82%89%e5%bf%9c%e7%94%a8%e3%81%be","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2133","title":{"rendered":"C++\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u5b8c\u5168\u7406\u89e3\uff01\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u89e3\u8aac\u3059\u308b7\u3064\u306e\u30dd\u30a4\u30f3\u30c8"},"content":{"rendered":"\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\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3068\u306f\uff1fC++\u306e\u91cd\u8981\u6027\u3092\u7406\u89e3\u3059\u308b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u8ab2\u984c<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3068\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u306e\u660e\u78ba\u306a\u9055\u3044<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">C++\u3067\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">\u4eee\u60f3\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u91cd\u8981\u6027\u3068\u4f7f\u3044\u65b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u30ad\u30fc\u30ef\u30fc\u30c9\u3067\u5b89\u5168\u6027\u3092\u9ad8\u3081\u308b\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-6\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-7\">\u7d99\u627f\u95a2\u4fc2\u3092\u660e\u78ba\u306b\u3059\u308b\u547d\u540d\u898f\u5247<\/a>      <\/li>      <li>        <a href=\"#i-8\">\u30e1\u30f3\u30d0\u95a2\u6570\u306e\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u9078\u629e<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-9\">\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u6ce8\u610f\u70b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-10\">\u3088\u304f\u3042\u308b\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u843d\u3068\u3057\u7a74\u3068\u5bfe\u7b56<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-11\">\u30b7\u30b0\u30cd\u30c1\u30e3\u306e\u5fae\u5999\u306a\u9055\u3044\u306b\u3088\u308b\u975e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-12\">\u4eee\u60f3\u95a2\u6570\u30c6\u30fc\u30d6\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5f71\u97ff<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-13\">\u30e2\u30c0\u30f3C++\u306b\u304a\u3051\u308b\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u65b0\u6a5f\u80fd<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-14\">C++11\u4ee5\u964d\u3067\u8ffd\u52a0\u3055\u308c\u305f\u5b89\u5168\u6027\u5411\u4e0a\u6a5f\u80fd<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-15\">\u6700\u7d42\u6307\u5b9a\u306e\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-16\">\u5b9f\u8df5\u7684\u306a\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u6d3b\u7528\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-17\">\u72b6\u614b\u30d1\u30bf\u30fc\u30f3\u3067\u306e\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-18\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u3067\u306e\u5b9f\u88c5\u4f8b<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-19\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u8a2d\u8a08\u306e\u6307\u91dd<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-20\">\u7d99\u627f\u304b\u30b3\u30f3\u30dd\u30b8\u30b7\u30e7\u30f3\u304b\u306e\u5224\u65ad\u57fa\u6e96<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-21\">\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u8a2d\u8a08\u3067\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/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\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3068\u306f\uff1fC++\u306e\u91cd\u8981\u6027\u3092\u7406\u89e3\u3059\u308b<\/h2>\n\n\n\n<p>\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\uff08override\uff09\u306f\u3001C++\u306b\u304a\u3051\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u306e\u4e00\u3064\u3067\u3059\u3002\u57fa\u5e95\u30af\u30e9\u30b9\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u4eee\u60f3\u95a2\u6570\u3092\u6d3e\u751f\u30af\u30e9\u30b9\u3067\u518d\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001\u5b9f\u884c\u6642\u306e\u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30ba\u30e0\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u8ab2\u984c<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u306e\u67d4\u8edf\u6027\u306e\u5411\u4e0a<\/strong><br>\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4fdd\u3061\u306a\u304c\u3089\u3001\u6d3e\u751f\u30af\u30e9\u30b9\u56fa\u6709\u306e\u51e6\u7406\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u57fa\u5e95\u30af\u30e9\u30b9\nclass Shape {\npublic:\n    \/\/ \u4eee\u60f3\u95a2\u6570\u3068\u3057\u3066\u9762\u7a4d\u8a08\u7b97\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\n    virtual double calculateArea() const {\n        return 0.0;  \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\n    }\n    virtual ~Shape() {}  \/\/ \u4eee\u60f3\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\n};\n\n\/\/ \u6d3e\u751f\u30af\u30e9\u30b9\uff08\u5186\uff09\nclass Circle : public Shape {\nprivate:\n    double radius;\npublic:\n    Circle(double r) : radius(r) {}\n    \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\n    double calculateArea() const override {\n        return 3.14159 * radius * radius;\n    }\n};\n\n\/\/ \u6d3e\u751f\u30af\u30e9\u30b9\uff08\u56db\u89d2\u5f62\uff09\nclass Rectangle : public Shape {\nprivate:\n    double width;\n    double height;\npublic:\n    Rectangle(double w, double h) : width(w), height(h) {}\n    \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\n    double calculateArea() const override {\n        return width * height;\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5171\u901a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u3088\u308b\u4e00\u8cab\u6027\u306e\u78ba\u4fdd<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u91cd\u8907\u3092\u524a\u6e1b<\/li>\n\n\n\n<li>\u65b0\u3057\u3044\u6d3e\u751f\u30af\u30e9\u30b9\u306e\u8ffd\u52a0\u304c\u5bb9\u6613<\/li>\n<\/ul>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5b9f\u884c\u6642\u306e\u52d5\u7684\u306a\u632f\u308b\u821e\u3044\u306e\u5b9f\u73fe<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5b9f\u884c\u6642\u306e\u52d5\u7684\u306a\u51e6\u7406\u306e\u4f8b\nvoid printArea(const Shape&amp; shape) {\n    std::cout &lt;&lt; \"\u9762\u7a4d: \" &lt;&lt; shape.calculateArea() &lt;&lt; std::endl;\n}\n\nint main() {\n    Circle circle(5.0);\n    Rectangle rectangle(4.0, 6.0);\n\n    \/\/ \u540c\u3058\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u7570\u306a\u308b\u5b9f\u88c5\u3092\u547c\u3073\u51fa\u3057\n    printArea(circle);      \/\/ \u5186\u306e\u9762\u7a4d\u3092\u8a08\u7b97\n    printArea(rectangle);   \/\/ \u56db\u89d2\u5f62\u306e\u9762\u7a4d\u3092\u8a08\u7b97\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3068\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u306e\u660e\u78ba\u306a\u9055\u3044<\/h3>\n\n\n<div id=\"id-f348fd96-9309-4f2a-ae87-ab7e5cd9c373\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u5fb4<\/th><th>\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9<\/th><th>\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9<\/th><\/tr><\/thead><tbody><tr><td>\u5b9a\u7fa9<\/td><td>\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u4eee\u60f3\u95a2\u6570\u3092\u6d3e\u751f\u30af\u30e9\u30b9\u3067\u518d\u5b9a\u7fa9<\/td><td>\u540c\u3058\u30af\u30e9\u30b9\u5185\u3067\u540c\u540d\u306e\u95a2\u6570\u3092\u7570\u306a\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u5b9a\u7fa9<\/td><\/tr><tr><td>\u76ee\u7684<\/td><td>\u5b9f\u884c\u6642\u306e\u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30ba\u30e0\u3092\u5b9f\u73fe<\/td><td>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u95a2\u6570\u306e\u591a\u91cd\u5b9a\u7fa9\u3092\u5b9f\u73fe<\/td><\/tr><tr><td>\u30b9\u30b3\u30fc\u30d7<\/td><td>\u7570\u306a\u308b\u30af\u30e9\u30b9\u9593<\/td><td>\u540c\u4e00\u30af\u30e9\u30b9\u5185<\/td><\/tr><tr><td>\u95a2\u6570\u30b7\u30b0\u30cd\u30c1\u30e3<\/td><td>\u623b\u308a\u5024\u578b\u3068\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u4e00\u81f4\u3059\u308b\u5fc5\u8981\u3042\u308a<\/td><td>\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u7570\u306a\u308b\u5fc5\u8981\u3042\u308a<\/td><\/tr><tr><td>\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0<\/td><td>\u5b9f\u884c\u6642\uff08\u52d5\u7684\uff09<\/td><td>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\uff08\u9759\u7684\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>virtual \u30ad\u30fc\u30ef\u30fc\u30c9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u57fa\u5e95\u30af\u30e9\u30b9\u3067\u306e\u4eee\u60f3\u95a2\u6570\u306e\u5ba3\u8a00\u306b\u5fc5\u9808<\/li>\n\n\n\n<li>\u6d3e\u751f\u30af\u30e9\u30b9\u3067\u306f\u81ea\u52d5\u7684\u306b\u4eee\u60f3\u95a2\u6570\u3068\u306a\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>override \u30ad\u30fc\u30ef\u30fc\u30c9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C++11\u4ee5\u964d\u3067\u5c0e\u5165\u3055\u308c\u305f\u660e\u793a\u7684\u306a\u6307\u5b9a<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u3092\u5f37\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30b0\u30cd\u30c1\u30e3\u306e\u4e00\u81f4<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u623b\u308a\u5024\u578b\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u30ea\u30b9\u30c8\u3001const\u4fee\u98fe\u5b50\u304c\u5b8c\u5168\u4e00\u81f4\u3059\u308b\u5fc5\u8981\u3042\u308a<\/li>\n\n\n\n<li>\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306f\u65b0\u3057\u3044\u95a2\u6570\u3068\u3057\u3066\u6271\u308f\u308c\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306fC++\u3067\u306e\u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30ba\u30e0\u5b9f\u73fe\u306e\u8981\u3068\u306a\u308b\u6a5f\u80fd\u3067\u3042\u308a\u3001\u67d4\u8edf\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a2d\u8a08\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">C++\u3067\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u4eee\u60f3\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u91cd\u8981\u6027\u3068\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>C++\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u5b9f\u88c5\u3059\u308b\u969b\u3001<code>virtual<\/code> \u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u3088\u308a\u3001\u95a2\u6570\u306e\u52d5\u7684\u30c7\u30a3\u30b9\u30d1\u30c3\u30c1\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    \/\/ \u4eee\u60f3\u95a2\u6570\u306e\u5ba3\u8a00\n    virtual void display() const {\n        std::cout &lt;&lt; \"Base class display\" &lt;&lt; std::endl;\n    }\n\n    \/\/ \u975e\u4eee\u60f3\u95a2\u6570\u306e\u5ba3\u8a00\n    void nonVirtualDisplay() const {\n        std::cout &lt;&lt; \"Base class non-virtual display\" &lt;&lt; std::endl;\n    }\n\n    \/\/ \u7d14\u7c8b\u4eee\u60f3\u95a2\u6570\u306e\u5ba3\u8a00\n    virtual void pureVirtualFunction() const = 0;\n\n    \/\/ \u4eee\u60f3\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\uff08\u91cd\u8981\uff09\n    virtual ~Base() {}\n};<\/pre>\n\n\n\n<p>\u4eee\u60f3\u95a2\u6570\u306e\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9f\u884c\u6642\u306b\u3069\u306e\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u304b\u6c7a\u5b9a\u3055\u308c\u308b<\/li>\n\n\n\n<li>\u6d3e\u751f\u30af\u30e9\u30b9\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u53ef\u80fd<\/li>\n\n\n\n<li>\u591a\u5c11\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u767a\u751f<\/li>\n\n\n\n<li>\u4eee\u60f3\u95a2\u6570\u30c6\u30fc\u30d6\u30eb\uff08vtable\uff09\u3092\u4f7f\u7528<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u30ad\u30fc\u30ef\u30fc\u30c9\u3067\u5b89\u5168\u6027\u3092\u9ad8\u3081\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p>C++11\u304b\u3089\u5c0e\u5165\u3055\u308c\u305f <code>override<\/code> \u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u610f\u56f3\u3057\u306a\u3044\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u554f\u984c\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Derived : public Base {\npublic:\n    \/\/ \u6b63\u3057\u3044\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\n    void display() const override {\n        std::cout &lt;&lt; \"Derived class display\" &lt;&lt; std::endl;\n    }\n\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1a\u57fa\u5e95\u30af\u30e9\u30b9\u306b\u5bfe\u5fdc\u3059\u308b\u4eee\u60f3\u95a2\u6570\u304c\u5b58\u5728\u3057\u306a\u3044\n    void displayTypo() const override {  \/\/ \u30a8\u30e9\u30fc\n        std::cout &lt;&lt; \"Typo in function name\" &lt;&lt; std::endl;\n    }\n\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1aconst\u4fee\u98fe\u5b50\u306e\u4e0d\u4e00\u81f4\n    void display() override {  \/\/ \u30a8\u30e9\u30fc\n        std::cout &lt;&lt; \"Missing const qualifier\" &lt;&lt; std::endl;\n    }\n\n    \/\/ \u7d14\u7c8b\u4eee\u60f3\u95a2\u6570\u306e\u5b9f\u88c5\n    void pureVirtualFunction() const override {\n        std::cout &lt;&lt; \"Implemented pure virtual function\" &lt;&lt; std::endl;\n    }\n};<\/pre>\n\n\n\n<p>\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30b0\u30cd\u30c1\u30e3\u306e\u5b8c\u5168\u4e00\u81f4<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u57fa\u5e95\u30af\u30e9\u30b9\nvirtual void process(int value) const;\n\n\/\/ \u6d3e\u751f\u30af\u30e9\u30b9\uff08\u6b63\u3057\u3044\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\uff09\nvoid process(int value) const override;\n\n\/\/ \u4ee5\u4e0b\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\nvoid process(long value) const override;  \/\/ \u30d1\u30e9\u30e1\u30fc\u30bf\u578b\u306e\u4e0d\u4e00\u81f4\nvoid process(int value) override;         \/\/ const\u4fee\u98fe\u5b50\u306e\u4e0d\u4e00\u81f4\nint process(int value) const override;    \/\/ \u623b\u308a\u5024\u578b\u306e\u4e0d\u4e00\u81f4<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u8003\u616e<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\nprotected:\n    virtual void protectedMethod() {}\n};\n\nclass Derived : public Base {\npublic:\n    \/\/ protected -&gt; public \u3078\u306e\u30a2\u30af\u30bb\u30b9\u6a29\u9650\u306e\u5909\u66f4\u306f\u53ef\u80fd\n    void protectedMethod() override {}\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3068\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u6271\u3044<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual ~Base() = default;  \/\/ \u4eee\u60f3\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\n\n    \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u4eee\u60f3\u5316\u3067\u304d\u306a\u3044\n    Base() {\n        init();  \/\/ \u521d\u671f\u5316\u6642\u306e\u4eee\u60f3\u95a2\u6570\u547c\u3073\u51fa\u3057\u306f\u6ce8\u610f\u304c\u5fc5\u8981\n    }\n\n    virtual void init() {\n        std::cout &lt;&lt; \"Base initialization\" &lt;&lt; std::endl;\n    }\n};<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>final \u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class FinalClass {\npublic:\n    \/\/ \u3053\u308c\u4ee5\u4e0a\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u306a\u3044\u95a2\u6570\u306e\u5ba3\u8a00\n    virtual void cannotOverride() final {}\n};\n\nclass Derived : public FinalClass {\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1afinal\u95a2\u6570\u306f\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u306a\u3044\n    void cannotOverride() override {}\n};<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001C++\u3067\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306f\u9069\u5207\u306a\u30ad\u30fc\u30ef\u30fc\u30c9\u3068\u4fee\u98fe\u5b50\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u578b\u5b89\u5168\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<code>virtual<\/code>\u3068<code>override<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u6b63\u3057\u304f\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u610f\u56f3\u3057\u306a\u3044\u52d5\u4f5c\u3092\u9632\u304e\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-6\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u7d99\u627f\u95a2\u4fc2\u3092\u660e\u78ba\u306b\u3059\u308b\u547d\u540d\u898f\u5247<\/h3>\n\n\n\n<p>\u52b9\u679c\u7684\u306a\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u5b9f\u88c5\u306b\u306f\u3001\u660e\u78ba\u306a\u547d\u540d\u898f\u5247\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u63a8\u5968\u3055\u308c\u308b\u547d\u540d\u30d1\u30bf\u30fc\u30f3\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u547d\u540d<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u30af\u30e9\u30b9\u306b\u306f 'I' \u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u4ed8\u3051\u308b\nclass IDrawable {\npublic:\n    virtual void draw() const = 0;\n    virtual ~IDrawable() = default;\n};\n\n\/\/ \u62bd\u8c61\u57fa\u5e95\u30af\u30e9\u30b9\u306b\u306f 'Base' \u30b5\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u4ed8\u3051\u308b\nclass ShapeBase : public IDrawable {\npublic:\n    virtual double calculateArea() const = 0;\n    virtual void resize(double factor) = 0;\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30bd\u30c3\u30c9\u547d\u540d\u306e\u4e00\u8cab\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DocumentBase {\npublic:\n    \/\/ \u52d5\u8a5e + \u76ee\u7684\u8a9e\u306e\u5f62\u5f0f\u3067\u7d71\u4e00\n    virtual void saveDocument() = 0;\n    virtual void loadDocument() = 0;\n    virtual void validateContent() = 0;\n};\n\nclass PDFDocument : public DocumentBase {\npublic:\n    \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u3068\u540c\u3058\u547d\u540d\u30d1\u30bf\u30fc\u30f3\u3092\u7dad\u6301\n    void saveDocument() override;\n    void loadDocument() override;\n    void validateContent() override;\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u30e1\u30f3\u30d0\u95a2\u6570\u306e\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u9078\u629e<\/h3>\n\n\n\n<p>\u9069\u5207\u306a\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u9078\u629e\u306f\u3001\u7d99\u627f\u968e\u5c64\u306e\u8a2d\u8a08\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>public\u4eee\u60f3\u95a2\u6570<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ServiceBase {\npublic:\n    \/\/ \u5916\u90e8\u304b\u3089\u547c\u3073\u51fa\u3055\u308c\u308b\u4e3b\u8981\u306a\u64cd\u4f5c\u306fpublic\n    virtual void processRequest() = 0;\n    virtual void handleError() = 0;\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>protected\u4eee\u60f3\u95a2\u6570<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DataProcessorBase {\nprotected:\n    \/\/ \u5185\u90e8\u5b9f\u88c5\u306e\u8a73\u7d30\u306fprotected\u306b\n    virtual void preProcess() = 0;\n    virtual void postProcess() = 0;\n\npublic:\n    \/\/ \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\n    void process() {\n        preProcess();\n        \/\/ \u5171\u901a\u51e6\u7406\n        postProcess();\n    }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>private\u975e\u4eee\u60f3\u95a2\u6570<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Widget {\nprivate:\n    \/\/ \u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u4e0d\u53ef\u306e\u5185\u90e8\u5b9f\u88c5\n    void internalCleanup() { \/* ... *\/ }\n\nprotected:\n    \/\/ \u6d3e\u751f\u30af\u30e9\u30b9\u3067\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u53ef\u80fd\u306a\u90e8\u5206\n    virtual void cleanup() {\n        internalCleanup();\n        \/\/ \u30ab\u30b9\u30bf\u30e0\u51e6\u7406\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<p>\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306b\u306f\u7279\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4eee\u60f3\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5fc5\u8981\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ResourceBase {\npublic:\n    \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u306f\u5fc5\u305a\u4eee\u60f3\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u6301\u3064\n    virtual ~ResourceBase() = default;\n\nprotected:\n    \/\/ \u30ea\u30bd\u30fc\u30b9\u89e3\u653e\u306e\u5171\u901a\u51e6\u7406\n    virtual void releaseResources() {\n        \/\/ \u57fa\u672c\u7684\u306a\u30ea\u30bd\u30fc\u30b9\u89e3\u653e\u51e6\u7406\n    }\n};\n\nclass FileResource : public ResourceBase {\nprivate:\n    FILE* file;\n\npublic:\n    ~FileResource() override {\n        releaseResources();  \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u306e\u51e6\u7406\u3092\u547c\u3073\u51fa\u3057\n        if (file) {\n            fclose(file);\n        }\n    }\n\nprotected:\n    void releaseResources() override {\n        \/\/ \u8ffd\u52a0\u306e\u30ea\u30bd\u30fc\u30b9\u89e3\u653e\u51e6\u7406\n        ResourceBase::releaseResources();\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u30c1\u30a7\u30fc\u30f3\u306e\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DatabaseConnection : public ResourceBase {\nprivate:\n    void* connection;\n    std::vector&lt;void*&gt; statements;\n\npublic:\n    ~DatabaseConnection() override {\n        \/\/ \u9806\u5e8f\u3092\u610f\u8b58\u3057\u305f\u30ea\u30bd\u30fc\u30b9\u89e3\u653e\n        for (auto* stmt : statements) {\n            closeStatement(stmt);\n        }\n        statements.clear();\n\n        if (connection) {\n            closeConnection();\n        }\n\n        \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u306e\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u81ea\u52d5\u7684\u306b\u547c\u3070\u308c\u308b\n    }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u4f8b\u5916\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class SafeResource : public ResourceBase {\npublic:\n    ~SafeResource() noexcept override {\n        try {\n            cleanup();\n        } catch (...) {\n            \/\/ \u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u306f\u4f8b\u5916\u3092\u6291\u5236\n            std::cerr &lt;&lt; \"Error during cleanup\" &lt;&lt; std::endl;\n        }\n    }\n\nprivate:\n    virtual void cleanup() {\n        \/\/ \u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u51e6\u7406\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9075\u5b88\u3059\u308b\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u30d0\u30b0\u306e\u5c11\u306a\u3044\u7d99\u627f\u968e\u5c64\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001\u547d\u540d\u898f\u5247\u306e\u4e00\u8cab\u6027\u3001\u9069\u5207\u306a\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u9078\u629e\u3001\u305d\u3057\u3066\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5b89\u5168\u306a\u5b9f\u88c5\u306f\u3001\u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-10\">\u3088\u304f\u3042\u308b\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u843d\u3068\u3057\u7a74\u3068\u5bfe\u7b56<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u30b7\u30b0\u30cd\u30c1\u30e3\u306e\u5fae\u5999\u306a\u9055\u3044\u306b\u3088\u308b\u975e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9<\/h3>\n\n\n\n<p>\u6700\u3082\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74\u306e\u4e00\u3064\u306f\u3001\u95a2\u6570\u30b7\u30b0\u30cd\u30c1\u30e3\u306e\u5fae\u5999\u306a\u9055\u3044\u306b\u3088\u3063\u3066\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u304c\u610f\u56f3\u305b\u305a\u5931\u6557\u3059\u308b\u30b1\u30fc\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>const\u4fee\u98fe\u5b50\u306e\u4e0d\u4e00\u81f4<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void process(int data) const { \/* ... *\/ }\n};\n\nclass Derived : public Base {\npublic:\n    \/\/ \u8b66\u544a: \u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u306f\u306a\u304f\u65b0\u3057\u3044\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u6271\u308f\u308c\u308b\n    void process(int data) { \/* ... *\/ }  \/\/ const\u304c\u6b20\u843d\n};<\/pre>\n\n\n\n<p>\u5bfe\u7b56\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Derived : public Base {\npublic:\n    \/\/ override \u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u30c1\u30a7\u30c3\u30af\n    void process(int data) const override { \/* ... *\/ }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u53c2\u7167\u4fee\u98fe\u5b50\u306e\u9055\u3044<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void update(const std::string&amp; data) { \/* ... *\/ }\n};\n\nclass Derived : public Base {\npublic:\n    \/\/ \u8b66\u544a: \u5024\u6e21\u3057\u306b\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u306f\u306a\u3044\n    void update(std::string data) override { \/* ... *\/ }  \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u623b\u308a\u5024\u306e\u5171\u5909\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Animal {\npublic:\n    virtual Animal* clone() const { return new Animal(*this); }\n};\n\nclass Dog : public Animal {\npublic:\n    \/\/ OK: \u623b\u308a\u5024\u306e\u578b\u304c\u6d3e\u751f\u30af\u30e9\u30b9\u306b\u306a\u3063\u3066\u3044\u308b\uff08\u5171\u5909\u6027\uff09\n    Dog* clone() const override { return new Dog(*this); }\n};\n\nclass Cat : public Animal {\npublic:\n    \/\/ \u30a8\u30e9\u30fc: \u623b\u308a\u5024\u306e\u578b\u304c\u57fa\u5e95\u30af\u30e9\u30b9\u3068\u7121\u95a2\u4fc2\n    std::unique_ptr&lt;Cat&gt; clone() const override { \/* ... *\/ }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u4eee\u60f3\u95a2\u6570\u30c6\u30fc\u30d6\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5f71\u97ff<\/h3>\n\n\n\n<p>\u4eee\u60f3\u95a2\u6570\u306e\u4f7f\u7528\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class MinimalClass {\n    int data;\n};  \/\/ \u30b5\u30a4\u30ba: sizeof(int)\n\nclass VirtualClass {\n    int data;\n    virtual void method() {}\n};  \/\/ \u30b5\u30a4\u30ba: sizeof(int) + sizeof(void*)\uff08vtable\u30dd\u30a4\u30f3\u30bf\u5206\u5897\u52a0\uff09<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u95a2\u6570\u547c\u3073\u51fa\u3057\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Performance {\npublic:\n    \/\/ \u76f4\u63a5\u547c\u3073\u51fa\u3057\uff08\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u53ef\u80fd\uff09\n    void directCall() { \/* ... *\/ }\n\n    \/\/ \u4eee\u60f3\u95a2\u6570\u547c\u3073\u51fa\u3057\uff08vtable\u7d4c\u7531\uff09\n    virtual void virtualCall() { \/* ... *\/ }\n};<\/pre>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30c6\u30af\u30cb\u30c3\u30af\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class OptimizedBase {\nprivate:\n    \/\/ \u983b\u7e41\u306b\u547c\u3073\u51fa\u3055\u308c\u308b\u975e\u4eee\u60f3\u95a2\u6570\n    void frequentOperation() {\n        \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u51e6\u7406\n    }\n\nprotected:\n    \/\/ \u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308b\u4eee\u60f3\u95a2\u6570\n    virtual void customizeOperation() = 0;\n\npublic:\n    \/\/ \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306b\u3088\u308b\u6700\u9069\u5316\n    void performOperation() {\n        frequentOperation();  \/\/ \u76f4\u63a5\u547c\u3073\u51fa\u3057\n        customizeOperation(); \/\/ \u5fc5\u8981\u306a\u5834\u5408\u306e\u307f\u4eee\u60f3\u547c\u3073\u51fa\u3057\n    }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DebugBase {\npublic:\n    virtual void operation() {\n        std::cout &lt;&lt; \"Base::operation called\" &lt;&lt; std::endl;\n        \/\/ \u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u306e\u51fa\u529b\n        logCallStack();\n    }\n\nprotected:\n    void logCallStack() {\n        \/\/ \u547c\u3073\u51fa\u3057\u5c65\u6b74\u306e\u8a18\u9332\n        \/\/ \u5b9f\u969b\u306e\u30d7\u30ed\u30c0\u30af\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u3067\u306f\u9069\u5207\u306a\u30ed\u30ae\u30f3\u30b0\u6a5f\u69cb\u3092\u4f7f\u7528\n    }\n};\n\nclass DebuggableDerived : public DebugBase {\npublic:\n    void operation() override {\n        std::cout &lt;&lt; \"Derived::operation called\" &lt;&lt; std::endl;\n        \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u306e\u51e6\u7406\u3092\u660e\u793a\u7684\u306b\u547c\u3073\u51fa\u3057\n        DebugBase::operation();\n    }\n};<\/pre>\n\n\n\n<p>\u4e88\u9632\u7684\u306a\u5bfe\u7b56\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>override \u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4e00\u8cab\u3057\u305f\u4f7f\u7528<\/strong><\/li>\n\n\n\n<li><strong>\u4eee\u60f3\u95a2\u6570\u306e\u4f7f\u7528\u3092\u5fc5\u8981\u306a\u5834\u5408\u306e\u307f\u306b\u9650\u5b9a<\/strong><\/li>\n\n\n\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u90e8\u5206\u3067\u306e\u4ee3\u66ff\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u306e\u691c\u8a0e<\/strong><\/li>\n\n\n\n<li><strong>\u9069\u5207\u306a\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u4f5c\u6210<\/strong><\/li>\n\n\n\n<li><strong>\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u843d\u3068\u3057\u7a74\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001<code>override<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4f7f\u7528\u3068\u614e\u91cd\u306a\u8a2d\u8a08\u5224\u65ad\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-13\">\u30e2\u30c0\u30f3C++\u306b\u304a\u3051\u308b\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u65b0\u6a5f\u80fd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">C++11\u4ee5\u964d\u3067\u8ffd\u52a0\u3055\u308c\u305f\u5b89\u5168\u6027\u5411\u4e0a\u6a5f\u80fd<\/h3>\n\n\n\n<p>\u30e2\u30c0\u30f3C++\u3067\u306f\u3001\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u5b89\u5168\u6027\u3068\u660e\u78ba\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u591a\u304f\u306e\u6a5f\u80fd\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u660e\u793a\u7684\u306a\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u6307\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ModernBase {\npublic:\n    virtual void process() const = 0;\n    virtual std::string getName() { return \"base\"; }\n};\n\nclass ModernDerived : public ModernBase {\npublic:\n    \/\/ C++11: override \u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u3088\u308b\u660e\u793a\u7684\u306a\u6307\u5b9a\n    void process() const override {\n        \/\/ \u5b9f\u88c5\n    }\n\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1a\u57fa\u5e95\u30af\u30e9\u30b9\u3068\u7570\u306a\u308b\u30b7\u30b0\u30cd\u30c1\u30e3\n    std::string getName() const override { \/\/ \u30a8\u30e9\u30fc: const\u4fee\u98fe\u5b50\u304c\u7570\u306a\u308b\n        return \"derived\";\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;memory&gt;\n\nclass Interface {\npublic:\n    virtual ~Interface() = default;\n    virtual void execute() = 0;\n};\n\nclass Implementation : public Interface {\npublic:\n    void execute() override {\n        \/\/ \u5b9f\u88c5\n    }\n};\n\n\/\/ \u30e2\u30c0\u30f3\u306a\u4f7f\u7528\u4f8b\nvoid modernUsage() {\n    \/\/ \u81ea\u52d5\u7684\u306a\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\n    auto ptr = std::make_unique&lt;Implementation&gt;();\n    ptr-&gt;execute();\n\n    \/\/ \u5171\u6709\u30ea\u30bd\u30fc\u30b9\u306e\u5834\u5408\n    std::shared_ptr&lt;Interface&gt; shared = std::make_shared&lt;Implementation&gt;();\n    \/\/ \u30ea\u30bd\u30fc\u30b9\u89e3\u653e\u3092\u6c17\u306b\u3059\u308b\u5fc5\u8981\u306a\u3057\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>[[nodiscard]]\u5c5e\u6027\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ModernRenderer {\npublic:\n    [[nodiscard]] virtual std::string render() const = 0;\n};\n\nclass HTMLRenderer : public ModernRenderer {\npublic:\n    [[nodiscard]] std::string render() const override {\n        return \"&lt;html&gt;&lt;\/html&gt;\";\n    }\n};\n\n\/\/ \u8b66\u544a: \u623b\u308a\u5024\u304c\u7121\u8996\u3055\u308c\u3066\u3044\u308b\nvoid riskyCode(const HTMLRenderer&amp; renderer) {\n    renderer.render();  \/\/ \u30b3\u30f3\u30d1\u30a4\u30e9\u8b66\u544a\n}\n\n\/\/ \u6b63\u3057\u3044\u4f7f\u7528\u6cd5\nvoid properCode(const HTMLRenderer&amp; renderer) {\n    auto result = renderer.render();\n    processResult(result);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u6700\u7d42\u6307\u5b9a\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30af\u30e9\u30b9\u306e\u7d99\u627f\u9632\u6b62<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Utility final {\npublic:\n    virtual void helpfulMethod() {\n        \/\/ \u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u306e\u5b9f\u88c5\n    }\n};\n\n\/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1afinal\u30af\u30e9\u30b9\u306f\u7d99\u627f\u3067\u304d\u306a\u3044\nclass DerivedUtility : public Utility {  \/\/ \u30a8\u30e9\u30fc\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30bd\u30c3\u30c9\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u9632\u6b62<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class BaseComponent {\npublic:\n    virtual void regularMethod() { }\n    virtual void criticalMethod() final { }\n};\n\nclass DerivedComponent : public BaseComponent {\n    void regularMethod() override { }  \/\/ OK\n    void criticalMethod() override { } \/\/ \u30a8\u30e9\u30fc\uff1afinal\u30e1\u30bd\u30c3\u30c9\u306f\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u4e0d\u53ef\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class SecureBase {\npublic:\n    \/\/ \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u91cd\u8981\u306a\u30e1\u30bd\u30c3\u30c9\u306f\u5909\u66f4\u3092\u7981\u6b62\n    virtual void authenticate() final {\n        \/\/ \u30bb\u30ad\u30e5\u30a2\u306a\u8a8d\u8a3c\u51e6\u7406\n    }\n\n    \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9\n    virtual void optimizedOperation() final {\n        \/\/ \u6700\u9069\u5316\u3055\u308c\u305f\u51e6\u7406\n    }\n};<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u30e2\u30c0\u30f3\u306a\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Strategy \u30d1\u30bf\u30fc\u30f3\u306e\u30e2\u30c0\u30f3\u306a\u5b9f\u88c5\nclass Strategy {\npublic:\n    virtual ~Strategy() = default;\n    virtual void execute() = 0;\n};\n\nclass ConcreteStrategy final : public Strategy {\npublic:\n    void execute() override {\n        \/\/ \u5177\u4f53\u7684\u306a\u5b9f\u88c5\n    }\n};\n\n\/\/ Context \u30af\u30e9\u30b9\u3067\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u7528\nclass Context {\nprivate:\n    std::unique_ptr&lt;Strategy&gt; strategy_;\n\npublic:\n    explicit Context(std::unique_ptr&lt;Strategy&gt; strategy)\n        : strategy_(std::move(strategy)) {}\n\n    void executeStrategy() {\n        if (strategy_) {\n            strategy_-&gt;execute();\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30e2\u30c0\u30f3C++\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5168\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001<code>override<\/code>\u3068<code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3001\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3001\u305d\u3057\u3066\u65b0\u3057\u3044\u5c5e\u6027\u306e\u6d3b\u7528\u306f\u3001\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u91cd\u8981\u306a\u5b9f\u8df5\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-16\">\u5b9f\u8df5\u7684\u306a\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u6d3b\u7528\u4f8b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u72b6\u614b\u30d1\u30bf\u30fc\u30f3\u3067\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u72b6\u614b\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5185\u90e8\u72b6\u614b\u306b\u5fdc\u3058\u3066\u632f\u308b\u821e\u3044\u3092\u5909\u66f4\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u72b6\u614b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\nclass State {\npublic:\n    virtual ~State() = default;\n    virtual void handle(class Document&amp; doc) = 0;\n    [[nodiscard]] virtual std::string getStateName() const = 0;\n};\n\n\/\/ \u5177\u4f53\u7684\u306a\u72b6\u614b\u30af\u30e9\u30b9\nclass DraftState : public State {\npublic:\n    void handle(Document&amp; doc) override {\n        std::cout &lt;&lt; \"\u6587\u66f8\u3092\u4e0b\u66f8\u304d\u72b6\u614b\u3067\u51e6\u7406\\n\";\n        \/\/ \u7279\u5b9a\u306e\u6761\u4ef6\u4e0b\u3067\u72b6\u614b\u9077\u79fb\n        if (isReadyForReview(doc)) {\n            doc.changeState(std::make_unique&lt;ReviewState&gt;());\n        }\n    }\n\n    [[nodiscard]] std::string getStateName() const override {\n        return \"\u4e0b\u66f8\u304d\";\n    }\nprivate:\n    static bool isReadyForReview(const Document&amp; doc);\n};\n\n\/\/ \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u30af\u30e9\u30b9\nclass Document {\nprivate:\n    std::unique_ptr&lt;State&gt; currentState;\n    std::string content;\n\npublic:\n    explicit Document() \n        : currentState(std::make_unique&lt;DraftState&gt;()) {}\n\n    void handle() {\n        currentState-&gt;handle(*this);\n    }\n\n    void changeState(std::unique_ptr&lt;State&gt; newState) {\n        currentState = std::move(newState);\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u3067\u306e\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9aa8\u683c\u3092\u5b9a\u7fa9\u3057\u3064\u3064\u3001\u4e00\u90e8\u306e\u624b\u9806\u3092\u6d3e\u751f\u30af\u30e9\u30b9\u3067\u5b9f\u88c5\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30c7\u30fc\u30bf\u51e6\u7406\u306e\u57fa\u5e95\u30af\u30e9\u30b9\nclass DataProcessor {\npublic:\n    \/\/ \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\n    void processData(const std::vector&lt;int&gt;&amp; data) {\n        if (validate(data)) {\n            preProcess(data);\n            auto result = transform(data);\n            postProcess(result);\n            save(result);\n        }\n    }\n\n    virtual ~DataProcessor() = default;\n\nprotected:\n    \/\/ \u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u53ef\u80fd\u306a\u30b9\u30c6\u30c3\u30d7\n    virtual bool validate(const std::vector&lt;int&gt;&amp; data) {\n        return !data.empty();\n    }\n\n    virtual void preProcess(const std::vector&lt;int&gt;&amp; data) {\n        std::cout &lt;&lt; \"\u524d\u51e6\u7406\u958b\u59cb: \" &lt;&lt; data.size() &lt;&lt; \"\u4ef6\\n\";\n    }\n\n    \/\/ \u5fc5\u9808\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\n    virtual std::vector&lt;double&gt; transform(const std::vector&lt;int&gt;&amp; data) = 0;\n\n    virtual void postProcess(const std::vector&lt;double&gt;&amp; result) {\n        std::cout &lt;&lt; \"\u5f8c\u51e6\u7406\u5b8c\u4e86: \" &lt;&lt; result.size() &lt;&lt; \"\u4ef6\\n\";\n    }\n\n    virtual void save(const std::vector&lt;double&gt;&amp; result) {\n        \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u4fdd\u5b58\u51e6\u7406\n    }\n};\n\n\/\/ \u5e73\u5747\u5024\u8a08\u7b97\u30d7\u30ed\u30bb\u30c3\u30b5\nclass AverageProcessor : public DataProcessor {\nprotected:\n    std::vector&lt;double&gt; transform(const std::vector&lt;int&gt;&amp; data) override {\n        double sum = std::accumulate(data.begin(), data.end(), 0.0);\n        return {sum \/ data.size()};\n    }\n\n    void save(const std::vector&lt;double&gt;&amp; result) override {\n        std::cout &lt;&lt; \"\u5e73\u5747\u5024: \" &lt;&lt; result[0] &lt;&lt; \"\\n\";\n    }\n};\n\n\/\/ \u79fb\u52d5\u5e73\u5747\u30d7\u30ed\u30bb\u30c3\u30b5\nclass MovingAverageProcessor : public DataProcessor {\nprivate:\n    size_t windowSize;\n\npublic:\n    explicit MovingAverageProcessor(size_t window) : windowSize(window) {}\n\nprotected:\n    std::vector&lt;double&gt; transform(const std::vector&lt;int&gt;&amp; data) override {\n        std::vector&lt;double&gt; result;\n        result.reserve(data.size() - windowSize + 1);\n\n        for (size_t i = 0; i &lt;= data.size() - windowSize; ++i) {\n            double sum = 0;\n            for (size_t j = 0; j &lt; windowSize; ++j) {\n                sum += data[i + j];\n            }\n            result.push_back(sum \/ windowSize);\n        }\n        return result;\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid processExample() {\n    std::vector&lt;int&gt; data = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};\n\n    \/\/ \u5e73\u5747\u5024\u306e\u8a08\u7b97\n    AverageProcessor avgProc;\n    avgProc.processData(data);\n\n    \/\/ \u79fb\u52d5\u5e73\u5747\u306e\u8a08\u7b97\uff08\u7a93\u5e453\uff09\n    MovingAverageProcessor movAvgProc(3);\n    movAvgProc.processData(data);\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5171\u901a\u51e6\u7406\u3092\u57fa\u5e95\u30af\u30e9\u30b9\u306b\u96c6\u7d04<\/li>\n\n\n\n<li>\u6d3e\u751f\u30af\u30e9\u30b9\u3067\u306f\u5fc5\u8981\u306a\u90e8\u5206\u306e\u307f\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u69cb\u9020\u304c\u660e\u78ba<\/li>\n\n\n\n<li>\u5909\u66f4\u306e\u5f71\u97ff\u7bc4\u56f2\u304c\u9650\u5b9a\u7684<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u62e1\u5f35\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u65b0\u3057\u3044\u51e6\u7406\u306e\u8ffd\u52a0\u304c\u5bb9\u6613<\/li>\n\n\n\n<li>\u65e2\u5b58\u30b3\u30fc\u30c9\u3078\u306e\u5f71\u97ff\u3092\u6700\u5c0f\u9650\u306b\u6291\u5236<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c6\u30b9\u30c8\u5bb9\u6613\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5404\u51e6\u7406\u30b9\u30c6\u30c3\u30d7\u3092\u500b\u5225\u306b\u30c6\u30b9\u30c8\u53ef\u80fd<\/li>\n\n\n\n<li>\u30e2\u30c3\u30af\u5316\u304c\u5bb9\u6613<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u5b9f\u969b\u306e\u958b\u767a\u73fe\u5834\u3067\u983b\u7e41\u306b\u6d3b\u7528\u3055\u308c\u308b\u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u4f8b\u3067\u3059\u3002\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u9078\u629e\u3057\u3001\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-19\">\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u8a2d\u8a08\u306e\u6307\u91dd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-20\">\u7d99\u627f\u304b\u30b3\u30f3\u30dd\u30b8\u30b7\u30e7\u30f3\u304b\u306e\u5224\u65ad\u57fa\u6e96<\/h3>\n\n\n\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a2d\u8a08\u306b\u304a\u3044\u3066\u3001\u7d99\u627f\u3068\u30b3\u30f3\u30dd\u30b8\u30b7\u30e7\u30f3\u306e\u9078\u629e\u306f\u91cd\u8981\u306a\u6c7a\u5b9a\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7d99\u627f\u3092\u9078\u629e\u3059\u3079\u304d\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ IS-A\u95a2\u4fc2\u304c\u6210\u7acb\u3059\u308b\u5834\u5408\u306e\u4f8b\nclass Animal {\npublic:\n    virtual ~Animal() = default;\n    virtual void makeSound() = 0;\n    virtual void move() = 0;\nprotected:\n    virtual void rest() { \/* \u57fa\u672c\u7684\u306a\u4f11\u606f\u52d5\u4f5c *\/ }\n};\n\nclass Bird : public Animal {\npublic:\n    void makeSound() override { \/* \u9cf4\u304d\u58f0 *\/ }\n    void move() override { \/* \u98db\u884c\u52d5\u4f5c *\/ }\nprivate:\n    void fly() { \/* \u98db\u884c\u306e\u8a73\u7d30\u306a\u5b9f\u88c5 *\/ }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30dd\u30b8\u30b7\u30e7\u30f3\u3092\u9078\u629e\u3059\u3079\u304d\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ HAS-A\u95a2\u4fc2\u306e\u5834\u5408\u306e\u4f8b\nclass Engine {\npublic:\n    virtual ~Engine() = default;\n    virtual void start() = 0;\n    virtual void stop() = 0;\n};\n\nclass Car {\nprivate:\n    std::unique_ptr&lt;Engine&gt; engine;\npublic:\n    explicit Car(std::unique_ptr&lt;Engine&gt; e) \n        : engine(std::move(e)) {}\n\n    void startCar() {\n        engine-&gt;start();\n        \/\/ \u305d\u306e\u4ed6\u306e\u521d\u671f\u5316\u51e6\u7406\n    }\n};<\/pre>\n\n\n\n<p>\u5224\u65ad\u57fa\u6e96\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>IS-A\u95a2\u4fc2\u304c\u6210\u7acb\u3059\u308b\u304b<\/li>\n\n\n\n<li>\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u632f\u308b\u821e\u3044\u3092\u5b8c\u5168\u306b\u7d99\u627f\u3067\u304d\u308b\u304b<\/li>\n\n\n\n<li>\u6d3e\u751f\u30af\u30e9\u30b9\u304c\u57fa\u5e95\u30af\u30e9\u30b9\u3092\u7f6e\u304d\u63db\u3048\u53ef\u80fd\u304b<\/li>\n\n\n\n<li>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5b89\u5b9a\u6027<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u8a2d\u8a08\u3067\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5206\u96e2\u306e\u539f\u5247\uff08ISP\uff09\u306e\u9069\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b\uff1a\u5927\u304d\u3059\u304e\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\nclass DocumentProcessor {\npublic:\n    virtual void scan() = 0;\n    virtual void print() = 0;\n    virtual void fax() = 0;\n    virtual void copy() = 0;\n};\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u6a5f\u80fd\u3054\u3068\u306b\u5206\u96e2\u3055\u308c\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\nclass Scanner {\npublic:\n    virtual void scan() = 0;\n};\n\nclass Printer {\npublic:\n    virtual void print() = 0;\n};\n\n\/\/ \u5fc5\u8981\u306a\u6a5f\u80fd\u3060\u3051\u3092\u5b9f\u88c5\nclass SimplePrinter : public Printer {\npublic:\n    void print() override { \/* \u5370\u5237\u51e6\u7406 *\/ }\n};\n\n\/\/ \u8907\u6570\u306e\u6a5f\u80fd\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u5834\u5408\nclass MultiFunctionDevice : public Scanner, public Printer {\npublic:\n    void scan() override { \/* \u30b9\u30ad\u30e3\u30f3\u51e6\u7406 *\/ }\n    void print() override { \/* \u5370\u5237\u51e6\u7406 *\/ }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ea\u30b9\u30b3\u30d5\u306e\u7f6e\u63db\u539f\u5247\uff08LSP\uff09\u306e\u9075\u5b88<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Rectangle {\npublic:\n    virtual void setWidth(int w) { width = w; }\n    virtual void setHeight(int h) { height = h; }\n    virtual int getArea() const { return width * height; }\nprotected:\n    int width = 0;\n    int height = 0;\n};\n\n\/\/ \u554f\u984c\u306e\u3042\u308b\u7d99\u627f\u95a2\u4fc2\u306e\u4f8b\nclass Square : public Rectangle {\npublic:\n    void setWidth(int w) override {\n        width = height = w;  \/\/ LSP\u9055\u53cd\uff1a\u4e88\u671f\u3057\u306a\u3044\u526f\u4f5c\u7528\n    }\n    void setHeight(int h) override {\n        width = height = h;  \/\/ LSP\u9055\u53cd\uff1a\u4e88\u671f\u3057\u306a\u3044\u526f\u4f5c\u7528\n    }\n};\n\n\/\/ better: \u30b3\u30f3\u30dd\u30b8\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u305f\u8a2d\u8a08\nclass Shape {\npublic:\n    virtual int getArea() const = 0;\n};\n\nclass Rectangle : public Shape {\nprivate:\n    int width;\n    int height;\npublic:\n    void setWidth(int w) { width = w; }\n    void setHeight(int h) { height = h; }\n    int getArea() const override { return width * height; }\n};\n\nclass Square : public Shape {\nprivate:\n    int side;\npublic:\n    void setSide(int s) { side = s; }\n    int getArea() const override { return side * side; }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Open-Closed Principle\uff08OCP\uff09\u306e\u5b9f\u8df5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u62e1\u5f35\u306b\u958b\u304b\u308c\u3001\u4fee\u6b63\u306b\u9589\u3058\u3089\u308c\u305f\u8a2d\u8a08\nclass Shape {\npublic:\n    virtual ~Shape() = default;\n    virtual double area() const = 0;\n    virtual void draw() const = 0;\n};\n\nclass Circle : public Shape {\nprivate:\n    double radius;\npublic:\n    explicit Circle(double r) : radius(r) {}\n    double area() const override {\n        return 3.14159 * radius * radius;\n    }\n    void draw() const override {\n        \/\/ \u5186\u306e\u63cf\u753b\u51e6\u7406\n    }\n};\n\n\/\/ \u65b0\u3057\u3044\u56f3\u5f62\u3092\u8ffd\u52a0\u3059\u308b\u5834\u5408\u3001\u65e2\u5b58\u30b3\u30fc\u30c9\u306e\u4fee\u6b63\u306f\u4e0d\u8981\nclass Triangle : public Shape {\nprivate:\n    double base;\n    double height;\npublic:\n    Triangle(double b, double h) : base(b), height(h) {}\n    double area() const override {\n        return 0.5 * base * height;\n    }\n    void draw() const override {\n        \/\/ \u4e09\u89d2\u5f62\u306e\u63cf\u753b\u51e6\u7406\n    }\n};<\/pre>\n\n\n\n<p>\u8a2d\u8a08\u6307\u91dd\u306e\u307e\u3068\u3081\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u7d99\u627f\u968e\u5c64\u306e\u6df1\u3055\u3092\u5236\u9650\u3059\u308b<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u5e383\u968e\u5c64\u4ee5\u4e0a\u306e\u7d99\u627f\u306f\u907f\u3051\u308b<\/li>\n\n\n\n<li>\u6df1\u3044\u7d99\u627f\u306f\u7406\u89e3\u3068\u4fdd\u5b88\u3092\u8907\u96d1\u306b\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5b89\u5b9a\u6027\u3092\u91cd\u8996<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30d6\u30ea\u30c3\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5909\u66f4\u306f\u5f71\u97ff\u304c\u5927\u304d\u3044<\/li>\n\n\n\n<li>\u62e1\u5f35\u6027\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08\u3092\u5fc3\u304c\u3051\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5358\u4e00\u8cac\u4efb\u306e\u539f\u5247\u3092\u5b88\u308b<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30af\u30e9\u30b9\u306f\u5358\u4e00\u306e\u8cac\u4efb\u3092\u6301\u3064\u3079\u304d<\/li>\n\n\n\n<li>\u8cac\u4efb\u306e\u5206\u6563\u306b\u3088\u308a\u4fdd\u5b88\u6027\u304c\u5411\u4e0a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d5\u30a9\u30eb\u30c8\u5b9f\u88c5\u306e\u63d0\u4f9b\u3092\u691c\u8a0e<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5171\u901a\u51e6\u7406\u306f\u57fa\u5e95\u30af\u30e9\u30b9\u3067\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u30dd\u30a4\u30f3\u30c8\u3092\u660e\u78ba\u306b\u5b9a\u7fa9<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8a2d\u8a08\u6307\u91dd\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u62e1\u5f35\u6027\u306e\u3042\u308b\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; 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