{"id":315,"date":"2025-07-17T15:19:28","date_gmt":"2025-07-17T15:19:28","guid":{"rendered":"http:\/\/west.wangyuansheng.cn\/?p=315"},"modified":"2025-07-18T06:00:30","modified_gmt":"2025-07-18T06:00:30","slug":"%e6%b1%82%e6%a2%af%e5%bd%a2%e7%9a%84%e9%9d%a2%e7%a7%af","status":"publish","type":"post","link":"http:\/\/west.wangyuansheng.cn\/?p=315","title":{"rendered":"\u6c42\u68af\u5f62\u7684\u9762\u79ef"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"938\" src=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1329.jpg\" alt=\"\" class=\"wp-image-316\" srcset=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1329.jpg 960w, http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1329-300x293.jpg 300w, http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1329-768x750.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5206\u6790\u95ee\u9898<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u5b66\u4eec\uff0c\u4f60\u4eec\u597d\uff01\u4eca\u5929\u6211\u4eec\u6765\u89e3\u51b3\u4e00\u4e2a\u5173\u4e8e\u68af\u5f62\u9762\u79ef\u7684\u95ee\u9898\u3002\u68af\u5f62\u662f\u4ec0\u4e48\u6837\u5b50\u7684\u5462\uff1f\u60f3\u8c61\u4e00\u4e0b\u4e00\u4e2a\u6ed1\u68af\u7684\u4fa7\u9762\uff0c\u6216\u8005\u4e00\u4e2a\u5012\u8fc7\u6765\u7684\u68af\u5f62\u76d2\u5b50\u2014\u2014\u5b83\u6709\u4e24\u6761\u5e73\u884c\u8fb9\uff08\u4e00\u6761\u5728\u4e0a\u9762\uff0c\u4e00\u6761\u5728\u4e0b\u9762\uff09\uff0c\u8fd9\u4e24\u6761\u8fb9\u5206\u522b\u53eb\u505a\u201c\u4e0a\u5e95\u201d\u548c\u201c\u4e0b\u5e95\u201d\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u8ddd\u79bb\u53eb\u505a\u201c\u9ad8\u201d\u3002\u5c31\u50cf\u4e0b\u56fe\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4e0a\u5e95 a\n--------\n\\        \\\n \\        \\  &lt;-- \u8fd9\u662f\u68af\u5f62\u7684\u4e24\u6761\u659c\u8fb9\n  \\        \\\n   ---------\n     \u4e0b\u5e95 b\n\u9ad8 h\uff08\u5782\u76f4\u8ddd\u79bb\uff09<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8981\u8ba1\u7b97\u68af\u5f62\u7684\u9762\u79ef\uff0c\u6211\u4eec\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u516c\u5f0f\uff1a<br><strong>\u9762\u79ef = (\u4e0a\u5e95 + \u4e0b\u5e95) \u00d7 \u9ad8 \u00f7 2<\/strong><br>\u4e3a\u4ec0\u4e48\u8fd9\u6837\u7b97\u5462\uff1f\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u60f3\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5148\u52a0\u4e0a\u4e0a\u5e95\u548c\u4e0b\u5e95\u7684\u957f\u5ea6\uff08\u8fd9\u5c31\u50cf\u628a\u4e24\u6761\u5e73\u884c\u8fb9\u201c\u8fde\u63a5\u201d\u8d77\u6765\uff09\u3002<\/li>\n\n\n\n<li>\u7136\u540e\u4e58\u4ee5\u9ad8\uff08\u8fd9\u76f8\u5f53\u4e8e\u7b97\u51fa\u4e00\u4e2a\u201c\u5927\u957f\u65b9\u5f62\u201d\u7684\u9762\u79ef\uff0c\u4f46\u68af\u5f62\u4e0d\u662f\u957f\u65b9\u5f62\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8c03\u6574\uff09\u3002<\/li>\n\n\n\n<li>\u6700\u540e\u9664\u4ee5 2\uff08\u56e0\u4e3a\u4e24\u4e2a\u76f8\u540c\u7684\u68af\u5f62\u53ef\u4ee5\u62fc\u6210\u4e00\u4e2a\u5e73\u884c\u56db\u8fb9\u5f62\uff0c\u6240\u4ee5\u4e00\u4e2a\u68af\u5f62\u7684\u9762\u79ef\u662f\u5b83\u7684\u4e00\u534a\uff09\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u4e0a\u5e95\u662f 2 \u5398\u7c73\uff0c\u4e0b\u5e95\u662f 3 \u5398\u7c73\uff0c\u9ad8\u662f 5 \u5398\u7c73\uff08\u5c31\u50cf\u9898\u76ee\u4e2d\u7684\u6837\u4f8b\uff09\u3002<\/li>\n\n\n\n<li>\u8ba1\u7b97\uff1a<code>(2 + 3) = 5<\/code> \u2192 <code>5 \u00d7 5 = 25<\/code> \u2192 <code>25 \u00f7 2 = 12.5<\/code><\/li>\n\n\n\n<li>\u6240\u4ee5\u9762\u79ef\u662f 12.5 \u5e73\u65b9\u5398\u7c73\uff08\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u5728\uff0c\u6211\u4eec\u8981\u5199\u4e00\u4e2a\u8ba1\u7b97\u673a\u7a0b\u5e8f\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8f93\u5165<\/strong>\uff1a\u4ece\u952e\u76d8\u8f93\u5165\u4e09\u4e2a\u6574\u6570\uff08\u4e0a\u5e95 a\u3001\u4e0b\u5e95 b\u3001\u9ad8 h\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8ba1\u7b97<\/strong>\uff1a\u7528\u516c\u5f0f <code>(a + b) \u00d7 h \u00f7 2<\/code> \u7b97\u51fa\u9762\u79ef\uff08\u6ce8\u610f\uff1a\u8ba1\u7b97\u673a\u9700\u8981\u77e5\u9053\u6211\u4eec\u8981\u5c0f\u6570\u7ed3\u679c\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8f93\u51fa<\/strong>\uff1a\u663e\u793a\u9762\u79ef\uff0c\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570\uff08\u6bd4\u5982 12.5\uff0c\u4e0d\u80fd\u5199\u6210 12.50 \u6216 12\uff09\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u5efa\u7acb\u6a21\u578b\uff08\u7b80\u5355\u6b65\u9aa4\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u53ef\u4ee5\u628a\u95ee\u9898\u5206\u89e3\u6210\u51e0\u4e2a\u5c0f\u6b65\u9aa4\uff0c\u5c31\u50cf\u505a\u6570\u5b66\u9898\u4e00\u6837\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8bfb\u6570\u636e<\/strong>\uff1a\u8ba9\u8ba1\u7b97\u673a\u201c\u8bfb\u201d\u4e09\u4e2a\u6570\u5b57\uff08a, b, h\uff09\u3002<\/li>\n\n\n\n<li><strong>\u7b97\u9762\u79ef<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5148\u7b97 <code>a + b<\/code>\uff08\u4e0a\u5e95\u52a0\u4e0b\u5e95\uff09\u3002<\/li>\n\n\n\n<li>\u518d\u4e58 <code>h<\/code>\uff08\u4e58\u4ee5\u9ad8\uff09\u3002<\/li>\n\n\n\n<li>\u6700\u540e\u9664\u4ee5 2\uff08\u6ce8\u610f\uff1a\u8981\u9664\u4ee5 2.0\uff0c\u8fd9\u6837\u8ba1\u7b97\u673a\u624d\u77e5\u9053\u7ed3\u679c\u662f\u5c0f\u6570\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u663e\u793a\u7ed3\u679c<\/strong>\uff1a\u628a\u9762\u79ef\u56db\u820d\u4e94\u5165\u5230\u4e00\u4f4d\u5c0f\u6570\uff08\u6bd4\u5982 12.56 \u53d8\u6210 12.6\uff0c12.54 \u53d8\u6210 12.5\uff09\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u7f16\u5199\u7a0b\u5e8f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684 C++ \u7a0b\u5e8f\u3002\u4ee3\u7801\u5f88\u7b80\u5355\uff0c\u6211\u4f1a\u52a0\u4e0a\u6ce8\u91ca\uff08<code>\/\/<\/code> \u540e\u9762\u7684\u6587\u5b57\uff09\u5e2e\u4f60\u7406\u89e3\u6bcf\u4e00\u884c\u5728\u505a\u4ec0\u4e48\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream&gt;\n#include &lt;iomanip&gt; \/\/ \u8fd9\u4e2a\u5934\u6587\u4ef6\u7528\u6765\u63a7\u5236\u5c0f\u6570\u4f4d\u6570\nusing namespace std;\n\nint main() {\n    int a, b, h; \/\/ \u5b9a\u4e49\u4e09\u4e2a\u6574\u6570\u53d8\u91cf\uff1aa\uff08\u4e0a\u5e95\uff09\u3001b\uff08\u4e0b\u5e95\uff09\u3001h\uff08\u9ad8\uff09\n    cin &gt;&gt; a &gt;&gt; b &gt;&gt; h; \/\/ \u4ece\u952e\u76d8\u8bfb\u5165\u4e09\u4e2a\u6570\u5b57\uff0c\u6bd4\u5982\u8f93\u5165 \"2 3 5\"\n\n    \/\/ \u8ba1\u7b97\u9762\u79ef\uff1a\u516c\u5f0f (a + b) * h \/ 2.0\uff08\u9664\u4ee5 2.0 \u786e\u4fdd\u5f97\u5230\u5c0f\u6570\u7ed3\u679c\uff09\n    double area = (a + b) * h \/ 2.0;\n\n    \/\/ \u8bbe\u7f6e\u8f93\u51fa\u683c\u5f0f\uff1a\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570\uff08fixed \u8868\u793a\u56fa\u5b9a\u5c0f\u6570\u683c\u5f0f\uff09\n    cout &lt;&lt; fixed &lt;&lt; setprecision(1);\n    cout &lt;&lt; area &lt;&lt; endl; \/\/ \u8f93\u51fa\u9762\u79ef\uff0c\u6bd4\u5982 12.5\n\n    return 0;\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u4fdd\u5b58 \u7f16\u8bd1 \u8fd0\u884c<\/h3>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u6790\u95ee\u9898 \u540c\u5b66\u4eec\uff0c\u4f60\u4eec\u597d\uff01\u4eca\u5929\u6211\u4eec\u6765\u89e3\u51b3\u4e00\u4e2a\u5173\u4e8e\u68af\u5f62\u9762\u79ef\u7684\u95ee\u9898\u3002\u68af\u5f62\u662f\u4ec0\u4e48\u6837\u5b50\u7684\u5462\uff1f\u60f3\u8c61\u4e00\u4e0b\u4e00\u4e2a\u6ed1\u68af\u7684\u4fa7\u9762\uff0c\u6216\u8005\u4e00\u4e2a\u5012\u8fc7\u6765\u7684\u68af\u5f62\u76d2\u5b50\u2014\u2014\u5b83\u6709\u4e24\u6761\u5e73\u884c\u8fb9\uff08\u4e00\u6761\u5728\u4e0a\u9762\uff0c\u4e00\u6761\u5728\u4e0b\u9762\uff09\uff0c\u8fd9\u4e24\u6761\u8fb9\u5206\u522b\u53eb\u505a\u201c\u4e0a\u5e95\u201d\u548c\u201c\u4e0b\u5e95\u201d\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u8ddd\u79bb\u53eb\u505a\u201c\u9ad8\u201d\u3002\u5c31\u50cf\u4e0b\u56fe\u8fd9\u6837\uff1a \u8981\u8ba1\u7b97\u68af\u5f62\u7684\u9762\u79ef\uff0c\u6211\u4eec\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u516c\u5f0f\uff1a\u9762\u79ef&#8230; <a class=\"read-more\" href=\"http:\/\/west.wangyuansheng.cn\/?p=315\">\u9605\u8bfb\u66f4\u591a&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-315","post","type-post","status-publish","format-standard","hentry","category-problem"],"_links":{"self":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=315"}],"version-history":[{"count":2,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/315\/revisions"}],"predecessor-version":[{"id":338,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/315\/revisions\/338"}],"wp:attachment":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=315"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}