{"id":2778,"date":"2020-09-26T11:09:41","date_gmt":"2020-09-26T11:09:41","guid":{"rendered":"https:\/\/queen166.net\/?p=2778"},"modified":"2021-04-28T05:47:00","modified_gmt":"2021-04-28T05:47:00","slug":"21%e9%bb%9e%e4%ba%94%e5%a4%a7%e7%b4%84%e6%9d%9f%e6%a2%9d%e4%bb%b6%e6%8e%a3%e8%82%98-%e4%ba%8c%e5%8d%81%e4%b8%80%e9%bb%9e%e8%81%b7%e6%a5%ad%e8%b3%ad%e5%be%92%e6%8a%80%e7%aa%ae","status":"publish","type":"post","link":"https:\/\/queen166.net\/21%e9%bb%9e%e4%ba%94%e5%a4%a7%e7%b4%84%e6%9d%9f%e6%a2%9d%e4%bb%b6%e6%8e%a3%e8%82%98-%e4%ba%8c%e5%8d%81%e4%b8%80%e9%bb%9e%e8%81%b7%e6%a5%ad%e8%b3%ad%e5%be%92%e6%8a%80%e7%aa%ae\/","title":{"rendered":"21\u9ede\u4e94\u5927\u7d04\u675f\u689d\u4ef6\u63a3\u8098 \u4e8c\u5341\u4e00\u9ede\u8077\u696d\u8ced\u5f92\u6280\u7aae"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_60 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\">\u5167\u5bb9\u76ee\u9304<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6621b14c6bcf9\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6621b14c6bcf9\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/queen166.net\/21%e9%bb%9e%e4%ba%94%e5%a4%a7%e7%b4%84%e6%9d%9f%e6%a2%9d%e4%bb%b6%e6%8e%a3%e8%82%98-%e4%ba%8c%e5%8d%81%e4%b8%80%e9%bb%9e%e8%81%b7%e6%a5%ad%e8%b3%ad%e5%be%92%e6%8a%80%e7%aa%ae\/#21%E9%BB%9E%E4%BA%94%E5%A4%A7%E7%B4%84%E6%9D%9F%E6%A2%9D%E4%BB%B6%E6%8E%A3%E8%82%98%E8%81%B7%E6%A5%AD%E8%B3%AD%E5%BE%92%E6%8A%80%E7%AA%AE\" title=\"21\u9ede\u4e94\u5927\u7d04\u675f\u689d\u4ef6\u63a3\u8098\u8077\u696d\u8ced\u5f92\u6280\u7aae\">21\u9ede\u4e94\u5927\u7d04\u675f\u689d\u4ef6\u63a3\u8098\u8077\u696d\u8ced\u5f92\u6280\u7aae<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/queen166.net\/21%e9%bb%9e%e4%ba%94%e5%a4%a7%e7%b4%84%e6%9d%9f%e6%a2%9d%e4%bb%b6%e6%8e%a3%e8%82%98-%e4%ba%8c%e5%8d%81%e4%b8%80%e9%bb%9e%e8%81%b7%e6%a5%ad%e8%b3%ad%e5%be%92%e6%8a%80%e7%aa%ae\/#21%E9%BB%9E%E4%BA%94%E9%BB%9E%E7%B4%84%E6%9D%9F%E6%A2%9D%E4%BB%B6\" title=\"21\u9ede\u4e94\u9ede\u7d04\u675f\u689d\u4ef6\">21\u9ede\u4e94\u9ede\u7d04\u675f\u689d\u4ef6<\/a><\/li><\/ul><\/nav><\/div>\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21%E9%BB%9E%E4%BA%94%E5%A4%A7%E7%B4%84%E6%9D%9F%E6%A2%9D%E4%BB%B6%E6%8E%A3%E8%82%98%E8%81%B7%E6%A5%AD%E8%B3%AD%E5%BE%92%E6%8A%80%E7%AA%AE\"><\/span><strong>21<\/strong><strong>\u9ede\u4e94\u5927\u7d04\u675f\u689d\u4ef6\u63a3\u8098\u8077\u696d\u8ced\u5f92\u6280\u7aae<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<div class=\"wp-block-image is-style-default\">\r\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"667\" data-attachment-id=\"2774\" data-permalink=\"https:\/\/queen166.net\/21%e9%bb%9e%e6%92%b2%e5%85%8b%e7%89%8c%e8%a8%98%e6%86%b6%e6%8a%80%e5%b7%a7%e8%a8%93%e7%b7%b4%e4%b8%8d%e8%97%8f%e7%a7%81%e5%88%86%e4%ba%ab\/1518-11030214130197-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/queen166.net\/wp-content\/uploads\/2020\/09\/1518-11030214130197.jpg?fit=1000%2C667&amp;ssl=1\" data-orig-size=\"1000,667\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"21\u9ede\u4e94\u5927\u7d04\u675f\u689d\u4ef6\u63a3\u8098\u8077\u696d\u8ced\u5f92\u6280\u7aae\" data-image-description=\"&lt;p&gt;21\u9ede\u4e94\u5927\u7d04\u675f\u689d\u4ef6\u63a3\u8098 \u4e8c\u5341\u4e00\u9ede\u8077\u696d\u8ced\u5f92\u6280\u7aae&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;21\u9ede\u4e94\u5927\u7d04\u675f\u689d\u4ef6\u63a3\u8098\u8077\u696d\u8ced\u5f92\u6280\u7aae&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/queen166.net\/wp-content\/uploads\/2020\/09\/1518-11030214130197.jpg?fit=300%2C200&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/queen166.net\/wp-content\/uploads\/2020\/09\/1518-11030214130197.jpg?fit=1000%2C667&amp;ssl=1\" class=\"wp-image-2774\" src=\"https:\/\/i0.wp.com\/queen166.net\/wp-content\/uploads\/2020\/09\/1518-11030214130197.jpg?resize=1000%2C667&#038;ssl=1\" alt=\"21\u9ede\u4e94\u5927\u7d04\u675f\u689d\u4ef6\u63a3\u8098 \u4e8c\u5341\u4e00\u9ede\u8077\u696d\u8ced\u5f92\u6280\u7aae\" srcset=\"https:\/\/i0.wp.com\/queen166.net\/wp-content\/uploads\/2020\/09\/1518-11030214130197.jpg?w=1000&amp;ssl=1 1000w, https:\/\/i0.wp.com\/queen166.net\/wp-content\/uploads\/2020\/09\/1518-11030214130197.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/queen166.net\/wp-content\/uploads\/2020\/09\/1518-11030214130197.jpg?resize=768%2C512&amp;ssl=1 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" data-recalc-dims=\"1\" \/>\r\n<figcaption><strong>21\u9ede\u4e94\u5927\u7d04\u675f\u689d\u4ef6\u63a3\u8098\u8077\u696d\u8ced\u5f92\u6280\u7aae<\/strong><\/figcaption>\r\n<\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>DC\u5728\u6539\u8b8a\u904e\u5f80\u7684\u724c\u898f\u3001\u6d17\u724c\u3001\u5207\u724c\u65b9\u5f0f\u7b49\u7d04\u675f\u689d\u4ef6\u4e0b\uff0c\u7e31\u7136\u662f\u201c\u7b97\u724c\u5ba2\u201d\u4e5f\u4e0d\u53ef\u80fd\u5728\u4e8c\u5341\u4e00\u9ede\u724c\u6232\u4e2d\u505a\u5230\u5e73\u5747\u8d0f\u3002\u4f46\u7531\u65bc\u89e3\u91cb\u4e0d\u5920\u8a73\u7d30\u4ee5\u53ca\u6b20\u7f3a\u6578\u5b78\u4e0a\u7684\u7406\u7531\uff0c\u6545\u6709\u8b80\u8005\u8868\u793a\u201c\u4e0d\u660e\u6240\u4ee5\u201d\u4e5f\u53ef\u4ee5\u7406\u89e3\u3002\u6545\u6b64\u5728\u5c55\u958b\u201c\u57fa\u672c\u7b56\u7565\u201d\u63a2\u8a0e\u4e4b\u524d\uff0c\u88dc\u4e0a\u4e00\u7b46\u89e3\u91cb\u548c\u8aaa\u660e\u3002<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21%E9%BB%9E%E4%BA%94%E9%BB%9E%E7%B4%84%E6%9D%9F%E6%A2%9D%E4%BB%B6\"><\/span><strong>21<\/strong><strong>\u9ede\u4e94\u9ede\u7d04\u675f\u689d\u4ef6<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<p>\u5224\u65b7\u201c\u7b97\u724c\u5ba2\u201d\u4e0d\u80fd\u5728\u4e8c\u5341\u4e00\u9ede\u724c\u6232\u4e2d\u505a\u5230\u201c\u5e73\u5747\u8d0f\u201d\u7684\u4e94\u9ede\u7406\u7531\u662f\uff1a<\/p>\r\n\r\n\r\n\r\n<p>\uff11\u4e0a\u9774\u7528\u5269\u724c\u4e0d\u6df7\u5728\u4e0b\u9774\u4f7f\u7528\uff1b<\/p>\r\n\r\n\r\n\r\n<p>\uff12DC\u63a1\u7528\u516d\u526f\u6216\u516b\u526f\u724c\u6df7\u6210\u4e00\u9774\u724c\uff1b<\/p>\r\n\r\n\r\n\r\n<p>\uff13\u63a1\u7528\u5faa\u74b0\u6d17\u724c\u6a5f\uff08\u4f8b\u5982shuffle star\uff09\u6d17\u724c\uff1b<\/p>\r\n\r\n\r\n\r\n<p>\uff14\u5207\u724c\u52a0\u539a\uff08\u5207\u53bb\u7684\u724c\u6578\u9054100\u5f35\u6216\u4ee5\u4e0a\uff09\uff1b<\/p>\r\n\r\n\r\n\r\n<p>\uff15\u8377\u5b98\u6d88\u724c\u7684\u9ede\u6578\u4e0d\u8b93\u8ced\u5ba2\u770b\u5230\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u904e\u5f80\uff0c\u7279\u5225\u662f\u5728\u7d22\u666e\uff08Edward Thorp\uff09\u767c\u8868\u4e86\u4ed6\u7684\u8457\u4f5c\u300a\u6253\u6557\u838a\u5bb6\u300b\u4e4b\u524d\uff0cDC\u7684\u4e8c\u5341\u4e00\u9ede\u724c\u6232\u662f\u63a1\u7528\u5169\u526f\u724c\uff0c\u6df7\u6210\u4e00\u9774\uff0c\u4ee5\u4eba\u624b\u6d17\u724c\uff0c\u5207\u724c\u8584\uff08\u5927\u7d04\u5207\u53bb\u56db\u5206\u4e4b\u4e00\u7d0426\u5f35\uff09\uff0c\u4e0a\u9774\u7528\u5269\u7684\u724c\uff08\u7d04\u56db\u5206\u4e00\u7d0426\u5f35\uff09\u6df7\u5728\u4e0b\u9774\u4f7f\u7528\uff0c\u4e14\u8377\u5b98\u6bcf\u6d88\u53bb\u4e00\u5f35\u724c\u8b93\u8ced\u5ba2\u770b\u6e05\u695a\u6d88\u9ede\u6578\u3002\u9019\u6a23\u201c\u7b97\u724c\u5ba2\u201d\u5c31\u6709\u53ef\u80fd\u6982\u7b97\u51fa\u4ed6\u62bc\u6ce8\u90a3\u9774\u724c\u7684\u5927\u5c0f\u724c\u5206\u4f48\u60c5\u6cc1\u3002\u7576\u201c\u7b97\u724c\u5ba2\u201d\u8a08\u7b97\u51fa\u4ed6\u4e0b\u6ce8\u9774\u724c\u7684\u5927\u724c\uff08\u5373A\u3001K\u3001Q\u3001J\u300110\uff09\u660e\u986f\u504f\u591a\uff0c\u5c31\u53ef\u4ee5\u62bc\u5927\u6ce8\uff0c\u9047\u9069\u7576\u6642\u6a5f\u4fbf\u8ced\u500d\u3001\u5206\u724c\u3001\u6216\u8005\u662f\u6c7a\u5b9a\u662f\u5426\u201c\u8cb7\u4fdd\u96aa\u201d\u7b49\uff0c\u4ee5\u64f4\u5927\u8d0f\u9762\u3002\u96d6\u7136\u9019\u6a23\u505a\u4e0d\u662f\u6bcf\u4e00\u628a\u7686\u8d0f\uff0c\u4f46\u591a\u6578\u6703\u8d0f\uff0c\u6545\u201c\u7b97\u724c\u5ba2\u201d\u80fd\u5920\u505a\u5230\u201c\u5e73\u5747\u8d0f\u201d\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u5169\u526f\u724c\u6df7\u6210\u4e00\u9774\u724c\uff0c\u5927\u5c0f\u724c\u662f\u6709\u5b9a\u91cf\u7684\uff0c\u5373\u5927\u724c\uff08A\u3001K\u3001Q\u3001J\u300110\uff09\u662f40\u5f35\uff0c\u4e2d\u724c\uff089\u30018\u30017\uff09\u662f24\u5f35\uff0c\u5c0f\u724c\uff086\u3001 5\u30014\u30013\u30012\uff0940\u5f35\uff0c\u5408\u5171104\u5f35\u3002\u4f9d\u7167\u724c\u4f8b\uff0c\u535a\u724c\u898f\u5247\uff0c\u5018\u4e00\u9774\u724c\u7684\u5927\u3001\u4e2d\u3001\u5c0f\u724c\u4f5c\u6b63\u614b\u5206\u4f48\uff08normal distribution\uff09\uff0c\u838a\u5bb6\u7684\u512a\u52e2\u8f03\u591a\uff0c\u8d0f\u9762\u8f03\u5927\uff0c\u7e31\u7136\u662f\u719f\u6089\u201c\u57fa\u672c\u7b56\u7565\u201d\u7684\u8ced\u5ba2\uff0c\u5e73\u5747\u800c\u8a00\u4ed6\u6295\u6ce8\u56de\u5831\uff08\u6536\u76ca\uff09\u662f\uff0d0.5\uff05\uff0c\u5373\u4ed6\u7684\u671f\u671b\u56de\u5831\u7387\u662f\u4e00\u500b\u8ca0\u6578\uff0c\u4e5f\u5c31\u662f\u8aaa\uff0c\u5e73\u5747\u6bcf\u628a\u8f380.5\uff05\uff0c\u5373\u6bcf\u628a\u6295\u6ce81000\u5143\uff0c\u6bcf\u628a\u8f385\u5143\uff0c\u800c\u4e0d\u61c2\u201c\u57fa\u672c\u7b56\u7565\u201d\u7684\u666e\u901a\u8ced\u5ba2\uff0c\u5e73\u5747\u6bcf\u628a\u8f381.5\uff05\uff0c\u6216\u66f4\u591a\u3002<br 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\/>\u4f9d\u7136\u662f\u9577\u8ced\u5fc5\u8f38<\/p>\r\n\r\n\r\n\r\n<p>\u4f46\u662f\uff0c\u7531\u65bc\u53d7\u5230\u4e94\u9805\u7d04\u675f\u689d\u4ef6\u63a3\u8098\uff0c\u7b97\u724c\u5ba2\u6839\u672c\u4e0d\u53ef\u80fd\u8a08\u7b97\u51fa\u5df2\u51fa\u904e\u7684\u5927\u724c\u3001\u4e2d\u724c\u3001\u5c0f\u724c\u5404\u81ea\u6578\u91cf\u70ba\u82e5\u5e72\uff0c\u4e5f\u5c31\u6839\u672c\u7121\u6cd5\u63a8\u7b97\u51fa\u9918\u4e0b\u5f85\u6d3e\u724c\u4e2d\u7684\u5927\u724c\u3001\u4e2d\u724c\u3001\u5c0f\u724c\u7684\u5206\u4f48\u6578\u91cf\u53ca\u6982\u7387\u3002\u5728\u6b64\u60c5\u4e4b\u4e0b\uff0c\u73a9\u5bb6\u624b\u6301\u5169\u5f35\u724c\u4e0d\u5920\u9ede\uff0c\u838a\u5bb6\u7684\u660e\u724c\u4ea6\u4e0d\u5920\u9ede\u6642\uff0c\u9592\u5bb6\u6700\u4f73\u7b56\u7565\u4e0d\u5916\u4f9d\u9760\u201c\u57fa\u672c\u7b56\u7565\u201d\u884c\u4e8b\u3002\u800c\u4f9d\u64da\u201c\u57fa\u672c\u7b56\u7565\u201d\u6253\u724c\uff0c\u7b97\u724c\u8005\u7684\u6295\u6ce8\u56de\u70ba-0.5\uff05\uff0c\u5373\u9577\u671f\u6216\u5e73\u5747\u8a08\u7b97\u662f\u4e00\u500b\u8ca0\u503c\u3002\u6b64\u5373\u610f\u5473\u8457\uff1a\u7b97\u724c\u5ba2\u5e73\u5747\u8f38\uff0c\u9577\u8ced\u5fc5\u8f38\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u7d04\u675f\u689d\u4ef6\u7684\u7b2c\u4e00\u9ede\uff0c\u662f\u9632\u6b62\u4e86\u201c\u4e0b\u9774\u724c\u201d\u6ef2\u6df7\u8f03\u591a\u5927\u724c\u7684\u60c5\u6cc1\u51fa\u73fe\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u7d04\u675f\u689d\u4ef6\u7684\u7b2c\u4e8c\u9ede\u662f\u589e\u52a0\u4e86\u7b97\u5ba2\u8a18\u4f4f\u5df2\u51fa\u904e\u724c\u7684\u96e3\u5ea6\uff0c\u4ee5\u53ca\u5c0d\u5269\u9918\u724c\u4f30\u7b97\u7684\u96e3\u5ea6\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u7d04\u675f\u689d\u4ef6\u7684\u7b2c\u4e09\u9ede\uff0c\u662f\u4ee4\u6574\u9774\u724c\u7684\u5927\u5c0f\u3001\u724c\u516c\u4f48\u66f4\u70ba\u5747\u52fb\uff0c\u4e0d\u6703\u51fa\u73fe\u524d\u534a\u7a0b\u5df2\u6d3e\u51fa\u4e86\u5927\u90e8\u5206\u5c0f\u724c\uff08\u6216\u5927\u724c\uff09\u7684\u60c5\u6cc1\uff0c\u4ee4\u7b97\u724c\u5ba2\u6709\u6a5f\u53ef\u4e58\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u7d04\u675f\u689d\u4ef6\u7684\u7b2c\u56db\u9ede\u201c\u5207\u724c\u52a0\u539a\u201d\u662f\u5f4c\u88dc\uff1a\u7e31\u7136\u6d17\u724c\u6a5f\u6d17\u724c\u51fa\u73fe\u504f\u5dee\uff0c\u8b93\u7b97\u724c\u53ef\u4ee5\u8a08\u7b97\u51fa\u5df2\u51fa\u904e\u5927\u3001\u5c0f\u724c\u7684\u6578\u91cf\u53ca\u6bd4\u4f8b\uff0c\u4f46\u4e5f\u4e0d\u80fd\u63a8\u7b97\u5269\u4e0b\u53ef\u7528\uff08\u5f85\u6d3e\uff09\u724c\u7684\u5927\u3001\u5c0f\u724c\u6578\u91cf\u548c\u6bd4\u4f8b\u3002\u56e0\u70ba\u5df2\u5207\u53bb\u7684\u724c\u7576\u4e2d\uff0c\u5927\u3001\u5c0f\u724c\u7684\u6578\u91cf\u6709\u53ef\u80fd\u662f\u5e73\u8861\u4ea6\u6709\u53ef\u80fd\u589e\u52a0\u524d\u534a\u7a0b\u5df2\u51fa\u904e\u724c\u7684\u5927\u5c0f\u6bd4\u4f8b\u4e5f\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u7d04\u675f\u689d\u4ef6\u7684\u7b2c\u4e94\u9ede\u662f\u4ee4\u7b97\u724c\u5ba2\u53ea\u80fd\u77e5\u90e8\u5206\u5df2\u51fa\u73fe\u904e\u724c\u4e4b\u5927\u5c0f\u5206\u4f48\u60c5\u6cc1\uff0c\u4f46\u6709\u53e6\u4e00\u90e8\u5206\u537b\u662f\u4e00\u500b\u672a\u77e5\u6578\u3002\u9019\u5c31\u4ee4\u7b97\u724c\u5ba2\u7121\u5f9e\u63a8\u7b97\u5269\u4e0b\u724c\u7684\u5927\u3001\u5c0f\u724c\u7684\u6578\u91cf\u548c\u5206\u4f48\u4e86\u3002\u904e\u5f80\uff0c\u8377\u5b98\u5728\u5411\u73a9\u5bb6\u767c\u724c\u524d\u6d88\u53bb\u516b\u5f35\u724c\u662f\u7ffb\u958b\u64fa\u653e\u5728\u684c\u9762\u4e0a\uff0c\u8b93\u8ced\u5ba2\u6aa2\u8996\u7684\uff08\u7b97\u724c\u5ba2\u4e5f\u5c31\u53ef\u4ee5\u8a18\u4f4f\u9019\u4e9b\u5df2\u51fa\u904e\u7684\u724c\uff09\uff0c\u9084\u6709\u5728\u6d3e\u724c\u904e\u7a0b\u4e2d\u6bcf\u6d88\u53bb\u4e00\u5f35\u724c\uff0c\u4e5f\u62ff\u51fa\u4f86\u8b93\u8ced\u5ba2\u770b\u6e05\u695a\u624d\u6389\u9032\u6d88\u724c\u76d2\u5167\u7684\uff0c\u73fe\u5728\u8377\u5b98\u8981\u6d88\u53bb\u7684\u724c\u4e4b\u9ede\u6578\u5247\u662f\u4e0d\u8b93\u8ced\u5ba2\u77e5\u9053\u7684\u3002DC\u63a1\u53d6\u9019\u6a23\u7684\u63aa\u65bd\uff0c\u5c31\u80fd\u5835\u4f4f\u7b97\u724c\u5ba2\u5229\u7528\u689d\u4ef6\u6982\u7387\uff08conditional 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