{"id":304,"date":"2025-07-17T14:57:55","date_gmt":"2025-07-17T14:57:55","guid":{"rendered":"http:\/\/west.wangyuansheng.cn\/?p=304"},"modified":"2025-07-18T06:00:45","modified_gmt":"2025-07-18T06:00:45","slug":"%e6%96%87%e5%85%b7%e5%ba%97%e7%9a%84%e6%8a%98%e6%89%a3","status":"publish","type":"post","link":"http:\/\/west.wangyuansheng.cn\/?p=304","title":{"rendered":"\u6587\u5177\u5e97\u7684\u6298\u6263"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"962\" height=\"786\" src=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1598-1.png\" alt=\"\" class=\"wp-image-307\" srcset=\"http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1598-1.png 962w, http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1598-1-300x245.png 300w, http:\/\/west.wangyuansheng.cn\/wp-content\/uploads\/2025\/07\/1598-1-768x627.png 768w\" sizes=\"auto, (max-width: 962px) 100vw, 962px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5206\u6790\u95ee\u9898\uff08\u7ed9\u4e94\u5e74\u7ea7\u5b66\u751f\u8bb2\u89e3\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u82b1\u82b1\u53bb\u6587\u5177\u5e97\u4e70\u6587\u5177\uff0c\u9047\u5230\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u6570\u5b66\u95ee\u9898\u3002\u8ba9\u6211\u4eec\u4e00\u6b65\u6b65\u7406\u89e3\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e70\u7684\u4e1c\u897f<\/strong>\uff1a\u82b1\u82b1\u4e70\u4e861\u652f\u7b14\u548c1\u5757\u6a61\u76ae\u3002\u7b14\u7684\u4ef7\u683c\u662f ( x ) \u5143\uff0c\u6a61\u76ae\u7684\u4ef7\u683c\u662f ( y ) \u5143\u3002<\/li>\n\n\n\n<li><strong>\u603b\u539f\u4ef7<\/strong>\uff1a\u5148\u7b97\u51fa\u7b14\u548c\u6a61\u76ae\u4e00\u5171\u591a\u5c11\u94b1\u3002\u5f88\u7b80\u5355\uff0c\u5c31\u662f ( x + y ) \u5143\u3002<\/li>\n\n\n\n<li><strong>\u6253\u6298\u6d3b\u52a8<\/strong>\uff1a\u6587\u5177\u5e97\u4eca\u5929\u62539\u6298\u3002\u62539\u6298\u7684\u610f\u601d\u662f\uff0c\u53ea\u4ed8\u539f\u4ef7\u768490%\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u539f\u4ef7\u662f10\u5143\uff0c\u62539\u6298\u540e\u5c31\u662f ( 10 * 0.9 = 9 ) \u5143\u3002<\/li>\n\n\n\n<li>\u6240\u4ee5\uff0c\u82b1\u82b1\u5b9e\u9645\u8981\u4ed8\u7684\u94b1\u662f ( (x + y) * 0.9 ) \u5143\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4ed8\u94b1\u548c\u627e\u96f6<\/strong>\uff1a\u82b1\u82b1\u7ed9\u4e86\u8001\u677f ( n ) \u5143\uff08\u9898\u76ee\u8bf4\u4e86 ( n ) \u4e00\u5b9a\u6bd4\u539f\u4ef7 ( x + y ) \u591a\u6216\u76f8\u7b49\uff0c\u6240\u4ee5\u94b1\u591f\u7528\uff09\u3002\u8001\u677f\u9700\u8981\u627e\u56de\u591a\u4f59\u7684\u94b1\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u627e\u56de\u7684\u94b1 = \u82b1\u82b1\u4ed8\u7684\u94b1 &#8211; \u5b9e\u9645\u8981\u4ed8\u7684\u94b1 = ( n &#8211; (x + y) * 0.9 )\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8f93\u51fa\u8981\u6c42<\/strong>\uff1a\u6700\u540e\uff0c\u8001\u677f\u627e\u56de\u7684\u94b1\u8981\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570\u3002\u4f8b\u5982\uff0c2.3 \u5143\u5c31\u76f4\u63a5\u5199 2.3\uff1b\u5982\u679c\u662f 2 \u5143\uff0c\u8981\u5199\u6210 2.0\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e3e\u4e2a\u6837\u4f8b\u5b50<\/strong>\uff08\u9898\u76ee\u7ed9\u7684\uff09\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8f93\u5165\uff1a\u7b14 ( x = 2 ) \u5143\uff0c\u6a61\u76ae ( y = 1 ) \u5143\uff0c\u82b1\u82b1\u4ed8\u4e86 ( n = 5 ) \u5143\u3002<\/li>\n\n\n\n<li>\u8ba1\u7b97\uff1a<\/li>\n\n\n\n<li>\u603b\u539f\u4ef7\uff1a( 2 + 1 = 3 ) \u5143\u3002<\/li>\n\n\n\n<li>\u62539\u6298\uff1a( 3 * 0.9 = 2.7 ) \u5143\uff08\u5b9e\u9645\u4ed8\u8fd9\u4e48\u591a\uff09\u3002<\/li>\n\n\n\n<li>\u627e\u56de\u7684\u94b1\uff1a( 5 &#8211; 2.7 = 2.3 ) \u5143\u3002<\/li>\n\n\n\n<li>\u8f93\u51fa\uff1a2.3\uff08\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5efa\u7acb\u6a21\u578b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u53ef\u4ee5\u628a\u95ee\u9898\u53d8\u6210\u4e00\u4e2a\u6570\u5b66\u516c\u5f0f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u627e\u56de\u7684\u94b1 = ( n &#8211; (x + y) * 0.9 )<\/li>\n\n\n\n<li>\u8ba1\u7b97\u540e\uff0c\u7ed3\u679c\u56db\u820d\u4e94\u5165\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7f16\u5199\u7a0b\u5e8f\uff08C++\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u7528 C++ \u5199\u7684\u7a0b\u5e8f\u3002\u7a0b\u5e8f\u4f1a\u8bfb\u53d6\u4e09\u4e2a\u6574\u6570\uff08\u7b14\u4ef7\u3001\u6a61\u76ae\u4ef7\u3001\u4ed8\u7684\u94b1\uff09\uff0c\u8ba1\u7b97\u627e\u56de\u7684\u94b1\uff0c\u5e76\u8f93\u51fa\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;bits\/stdc++.h&gt;\nusing namespace std;\nint main() {\n    int x, y, n;  \/\/ \u5b9a\u4e49\u53d8\u91cf\uff1a\u7b14\u4ef7\u3001\u6a61\u76ae\u4ef7\u3001\u4ed8\u7684\u94b1\n    cin &gt;&gt; x &gt;&gt; y &gt;&gt; n;  \/\/ \u8f93\u5165\u4e09\u4e2a\u6574\u6570\n    double total = x + y;  \/\/ \u603b\u539f\u4ef7\n    double discounted = total * 0.9;  \/\/ \u62539\u6298\u540e\u7684\u4ef7\u683c  discounted\uff08\u6298\u6263\uff09\n    double change = n - discounted;  \/\/ \u627e\u56de\u7684\u94b1\n    \/\/ \u8f93\u51fa\u627e\u56de\u7684\u94b1\uff0c\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570\uff08\u59822.3\u62162.0\uff09\n    cout &lt;&lt; fixed &lt;&lt; setprecision(1) &lt;&lt; change &lt;&lt; endl;\n    return 0;\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u4fdd\u5b58 \u7f16\u8bd1 \u8fd0\u884c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4ee3\u7801\u8bf4\u660e<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>cin >> x >> y >> n;<\/code>\uff1a\u8f93\u5165\u7b14\u7684\u4ef7\u683c\u3001\u6a61\u76ae\u7684\u4ef7\u683c\u548c\u82b1\u82b1\u4ed8\u7684\u94b1\u3002<\/li>\n\n\n\n<li><code>double total = x + y;<\/code>\uff1a\u8ba1\u7b97\u603b\u539f\u4ef7\u3002<\/li>\n\n\n\n<li><code>double discounted = total * 0.9;<\/code>\uff1a\u8ba1\u7b97\u62539\u6298\u540e\u7684\u4ef7\u683c\u3002<\/li>\n\n\n\n<li><code>double change = n - discounted;<\/code>\uff1a\u8ba1\u7b97\u627e\u56de\u7684\u94b1\u3002<\/li>\n\n\n\n<li><code>cout &lt;&lt; fixed &lt;&lt; setprecision(1) &lt;&lt; change &lt;&lt; endl;<\/code>\uff1a\u8f93\u51fa\u627e\u56de\u7684\u94b1\uff0c\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570\uff08\u5982\u8f93\u5165 2 1 5\uff0c\u8f93\u51fa 2.3\uff09\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u6790\u95ee\u9898\uff08\u7ed9\u4e94\u5e74\u7ea7\u5b66\u751f\u8bb2\u89e3\uff09 \u82b1\u82b1\u53bb\u6587\u5177\u5e97\u4e70\u6587\u5177\uff0c\u9047\u5230\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u6570\u5b66\u95ee\u9898\u3002\u8ba9\u6211\u4eec\u4e00\u6b65\u6b65\u7406\u89e3\uff1a \u4e3e\u4e2a\u6837\u4f8b\u5b50\uff08\u9898\u76ee\u7ed9\u7684\uff09\uff1a&#8230; <a class=\"read-more\" href=\"http:\/\/west.wangyuansheng.cn\/?p=304\">\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-304","post","type-post","status-publish","format-standard","hentry","category-problem"],"_links":{"self":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/304","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=304"}],"version-history":[{"count":4,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/304\/revisions"}],"predecessor-version":[{"id":340,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/304\/revisions\/340"}],"wp:attachment":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=304"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}