{"id":1289317,"date":"2025-02-25T00:07:55","date_gmt":"2025-02-24T16:07:55","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1289317.html"},"modified":"2025-02-25T00:07:57","modified_gmt":"2025-02-24T16:07:57","slug":"%e9%a1%b9%e7%9b%ae%e7%ae%a1%e7%90%86lf%e6%80%8e%e4%b9%88%e7%ae%97","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1289317.html","title":{"rendered":"\u9879\u76ee\u7ba1\u7406lf\u600e\u4e48\u7b97"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2025\/02\/fafd282f-0a1c-42ee-86aa-e414296c6965.webp?x-oss-process=image\/auto-orient,1\/format,webp\" alt=\"\u9879\u76ee\u7ba1\u7406lf\u600e\u4e48\u7b97\" \/><\/p>\n<p><p> <a href=\"https:\/\/docs.pingcode.com\/blog\/project-management\/23316.html\" target=\"_blank\">\u9879\u76ee\u7ba1\u7406<\/a>\u4e2d\u7684LF\uff08Latest Finish\uff09\u662f\u6307\u67d0\u9879\u4efb\u52a1\u6216\u6d3b\u52a8\u53ef\u4ee5\u6700\u665a\u5b8c\u6210\u7684\u65f6\u95f4\uff0c\u800c\u4e0d\u5f71\u54cd\u6574\u4e2a\u9879\u76ee\u7684\u5b8c\u6210\u65f6\u95f4\u3002<strong>\u9879\u76ee\u7ba1\u7406\u4e2dLF\u7684\u8ba1\u7b97\u5173\u952e\u5728\u4e8e\u8fdb\u884c\u540e\u63a8\u6cd5\u3001\u660e\u786e\u5173\u952e\u8def\u5f84\u3001\u8003\u8651\u9879\u76ee\u603b\u5de5\u671f\u548c\u6d3b\u52a8\u6301\u7eed\u65f6\u95f4<\/strong>\u3002\u63a5\u4e0b\u6765\u5c06\u8be6\u7ec6\u63cf\u8ff0\u5982\u4f55\u8ba1\u7b97LF\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4e86\u89e3\u9879\u76ee\u7684\u603b\u5de5\u671f<\/h3>\n<\/p>\n<p><p>\u5728\u8ba1\u7b97LF\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u660e\u786e\u9879\u76ee\u7684\u603b\u5de5\u671f\u3002\u603b\u5de5\u671f\u662f\u6307\u9879\u76ee\u4ece\u5f00\u59cb\u5230\u7ed3\u675f\u6240\u9700\u8981\u7684\u65f6\u95f4\u3002\u901a\u8fc7\u9879\u76ee\u603b\u5de5\u671f\uff0c\u53ef\u4ee5\u786e\u5b9a\u6bcf\u4e2a\u6d3b\u52a8\u7684\u6700\u65e9\u5f00\u59cb\u65f6\u95f4\uff08ES\uff09\u548c\u6700\u65e9\u5b8c\u6210\u65f6\u95f4\uff08EF\uff09\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528\u540e\u63a8\u6cd5\u8ba1\u7b97LF<\/h3>\n<\/p>\n<p><p>\u540e\u63a8\u6cd5\uff08Backward Pass\uff09\u662f\u8ba1\u7b97\u6d3b\u52a8\u7684\u6700\u665a\u5f00\u59cb\u65f6\u95f4\uff08LS\uff09\u548c\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u7684\u5173\u952e\u65b9\u6cd5\u3002\u540e\u63a8\u6cd5\u7684\u57fa\u672c\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<ol>\n<li>\u4ece\u9879\u76ee\u7ec8\u70b9\u5f00\u59cb\uff0c\u9010\u6b65\u5411\u9879\u76ee\u8d77\u70b9\u65b9\u5411\u8ba1\u7b97\u3002<\/li>\n<li>\u7ec8\u70b9\u6d3b\u52a8\u7684\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u7b49\u4e8e\u9879\u76ee\u7684\u603b\u5de5\u671f\u3002<\/li>\n<li>\u9010\u4e2a\u5411\u524d\u63a8\uff0c\u8ba1\u7b97\u6bcf\u4e2a\u6d3b\u52a8\u7684\u6700\u665a\u5f00\u59cb\u65f6\u95f4\uff08LS\uff09\u548c\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u3002<\/li>\n<\/ol>\n<p><h3>\u4e09\u3001\u660e\u786e\u5173\u952e\u8def\u5f84<\/h3>\n<\/p>\n<p><p>\u5173\u952e\u8def\u5f84\u662f\u6307\u9879\u76ee\u4e2d\u4ece\u8d77\u70b9\u5230\u7ec8\u70b9\uff0c\u6301\u7eed\u65f6\u95f4\u6700\u957f\u7684\u4e00\u6761\u8def\u5f84\u3002\u5173\u952e\u8def\u5f84\u4e0a\u7684\u6d3b\u52a8\u76f4\u63a5\u5f71\u54cd\u9879\u76ee\u7684\u603b\u5de5\u671f\uff0c\u56e0\u6b64\u8fd9\u4e9b\u6d3b\u52a8\u7684\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<\/p>\n<p><p>\u901a\u8fc7<a href=\"https:\/\/docs.pingcode.com\/blog\/project-management\/60014.html\" target=\"_blank\">\u5173\u952e\u8def\u5f84\u6cd5<\/a>\uff08CPM\uff09\uff0c\u53ef\u4ee5\u786e\u5b9a\u9879\u76ee\u4e2d\u7684\u5173\u952e\u6d3b\u52a8\u548c\u975e\u5173\u952e\u6d3b\u52a8\u3002\u5173\u952e\u6d3b\u52a8\u7684\u6d6e\u52a8\u65f6\u95f4\uff08Float\uff09\u4e3a\u96f6\uff0c\u975e\u5173\u952e\u6d3b\u52a8\u7684\u6d6e\u52a8\u65f6\u95f4\u5219\u5927\u4e8e\u96f6\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u8003\u8651\u6d3b\u52a8\u7684\u6301\u7eed\u65f6\u95f4<\/h3>\n<\/p>\n<p><p>\u6bcf\u4e2a\u6d3b\u52a8\u7684\u6301\u7eed\u65f6\u95f4\u662f\u8ba1\u7b97LF\u7684\u91cd\u8981\u56e0\u7d20\u3002\u6d3b\u52a8\u7684\u6301\u7eed\u65f6\u95f4\u662f\u6307\u5b8c\u6210\u8be5\u6d3b\u52a8\u6240\u9700\u7684\u65f6\u95f4\u3002\u901a\u8fc7\u540e\u63a8\u6cd5\u548c\u5173\u952e\u8def\u5f84\u6cd5\uff0c\u53ef\u4ee5\u9010\u6b65\u8ba1\u7b97\u6bcf\u4e2a\u6d3b\u52a8\u7684\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u5b9e\u4f8b\u89e3\u6790<\/h3>\n<\/p>\n<p><p>\u5047\u8bbe\u6709\u4e00\u4e2a\u9879\u76ee\uff0c\u5176\u603b\u5de5\u671f\u4e3a20\u5929\uff0c\u5305\u542b\u4e09\u4e2a\u6d3b\u52a8A\u3001B\u548cC\u3002\u6d3b\u52a8A\u7684\u6301\u7eed\u65f6\u95f4\u4e3a5\u5929\uff0c\u6d3b\u52a8B\u7684\u6301\u7eed\u65f6\u95f4\u4e3a10\u5929\uff0c\u6d3b\u52a8C\u7684\u6301\u7eed\u65f6\u95f4\u4e3a5\u5929\u3002\u6d3b\u52a8A\u662f\u9879\u76ee\u7684\u8d77\u70b9\uff0c\u6d3b\u52a8C\u662f\u9879\u76ee\u7684\u7ec8\u70b9\uff0c\u6d3b\u52a8B\u4f4d\u4e8e\u6d3b\u52a8A\u548c\u6d3b\u52a8C\u4e4b\u95f4\u3002<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u6b65\u9aa4\u4e00\uff1a\u8ba1\u7b97\u9879\u76ee\u7684\u603b\u5de5\u671f<\/strong><\/p>\n<p>\u9879\u76ee\u7684\u603b\u5de5\u671f\u4e3a20\u5929\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u6b65\u9aa4\u4e8c\uff1a\u4f7f\u7528\u540e\u63a8\u6cd5\u8ba1\u7b97LF<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u6d3b\u52a8C\u7684\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u7b49\u4e8e\u9879\u76ee\u7684\u603b\u5de5\u671f\uff0c\u537320\u5929\u3002<\/li>\n<li>\u6d3b\u52a8C\u7684\u6700\u665a\u5f00\u59cb\u65f6\u95f4\uff08LS\uff09\u7b49\u4e8e\u5176\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u51cf\u53bb\u5176\u6301\u7eed\u65f6\u95f4\uff0c\u537320\u5929-5\u5929=15\u5929\u3002<\/li>\n<li>\u6d3b\u52a8B\u7684\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u7b49\u4e8e\u6d3b\u52a8C\u7684\u6700\u665a\u5f00\u59cb\u65f6\u95f4\uff08LS\uff09\uff0c\u537315\u5929\u3002<\/li>\n<li>\u6d3b\u52a8B\u7684\u6700\u665a\u5f00\u59cb\u65f6\u95f4\uff08LS\uff09\u7b49\u4e8e\u5176\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u51cf\u53bb\u5176\u6301\u7eed\u65f6\u95f4\uff0c\u537315\u5929-10\u5929=5\u5929\u3002<\/li>\n<li>\u6d3b\u52a8A\u7684\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u7b49\u4e8e\u6d3b\u52a8B\u7684\u6700\u665a\u5f00\u59cb\u65f6\u95f4\uff08LS\uff09\uff0c\u53735\u5929\u3002<\/li>\n<li>\u6d3b\u52a8A\u7684\u6700\u665a\u5f00\u59cb\u65f6\u95f4\uff08LS\uff09\u7b49\u4e8e\u5176\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\u51cf\u53bb\u5176\u6301\u7eed\u65f6\u95f4\uff0c\u53735\u5929-5\u5929=0\u5929\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6b65\u9aa4\u4e09\uff1a\u660e\u786e\u5173\u952e\u8def\u5f84<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u9879\u76ee\u4e2d\u7684\u5173\u952e\u8def\u5f84\u4e3aA-B-C\u3002<\/li>\n<li>\u5173\u952e\u8def\u5f84\u4e0a\u7684\u6d3b\u52a8\u7684\u6d6e\u52a8\u65f6\u95f4\uff08Float\uff09\u4e3a\u96f6\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6b65\u9aa4\u56db\uff1a\u8003\u8651\u6d3b\u52a8\u7684\u6301\u7eed\u65f6\u95f4<\/strong><\/p>\n<\/p>\n<ul>\n<li>\u6d3b\u52a8A\u7684\u6301\u7eed\u65f6\u95f4\u4e3a5\u5929\u3002<\/li>\n<li>\u6d3b\u52a8B\u7684\u6301\u7eed\u65f6\u95f4\u4e3a10\u5929\u3002<\/li>\n<li>\u6d3b\u52a8C\u7684\u6301\u7eed\u65f6\u95f4\u4e3a5\u5929\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><h3>\u516d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u53ef\u4ee5\u8ba1\u7b97\u51fa\u6bcf\u4e2a\u6d3b\u52a8\u7684\u6700\u665a\u5b8c\u6210\u65f6\u95f4\uff08LF\uff09\uff0c\u5e76\u660e\u786e\u9879\u76ee\u7684\u5173\u952e\u8def\u5f84\u3002\u5173\u952e\u8def\u5f84\u4e0a\u7684\u6d3b\u52a8\u76f4\u63a5\u5f71\u54cd\u9879\u76ee\u7684\u603b\u5de5\u671f\uff0c\u56e0\u6b64\u5728\u9879\u76ee\u7ba1\u7406\u4e2d\u5c24\u4e3a\u91cd\u8981\u3002\u901a\u8fc7\u5408\u7406\u7684\u9879\u76ee\u7ba1\u7406\u65b9\u6cd5\uff0c\u53ef\u4ee5\u786e\u4fdd\u9879\u76ee\u6309\u65f6\u5b8c\u6210\uff0c\u63d0\u9ad8\u9879\u76ee\u7684\u6574\u4f53\u6548\u7387\u548c\u8d28\u91cf\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u9879\u76ee\u7ba1\u7406\u4e2d\u7684lf\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/strong><br \/>LF\u5728\u9879\u76ee\u7ba1\u7406\u4e2d\u901a\u5e38\u6307\u7684\u662f\u201cLate Finish\u201d\uff0c\u5373\u201c\u6700\u665a\u5b8c\u6210\u65f6\u95f4\u201d\u3002\u8fd9\u662f\u6307\u5728\u9879\u76ee\u8c03\u5ea6\u4e2d\uff0c\u67d0\u9879\u4efb\u52a1\u6216\u6d3b\u52a8\u53ef\u4ee5\u5ef6\u8fdf\u5230\u7684\u6700\u665a\u65f6\u95f4\uff0c\u800c\u4e0d\u4f1a\u5f71\u54cd\u6574\u4e2a\u9879\u76ee\u7684\u4ea4\u4ed8\u65e5\u671f\u3002\u7406\u89e3LF\u5bf9\u4e8e\u6709\u6548\u7684\u65f6\u95f4\u7ba1\u7406\u548c\u8d44\u6e90\u914d\u7f6e\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p><strong>\u5982\u4f55\u8ba1\u7b97\u9879\u76ee\u7684lf\u503c\uff1f<\/strong><br \/>\u8ba1\u7b97LF\u503c\u901a\u5e38\u9700\u8981\u4f7f\u7528\u5173\u952e\u8def\u5f84\u6cd5\uff08CPM\uff09\u3002\u9996\u5148\u9700\u8981\u786e\u5b9a\u9879\u76ee\u7684\u5404\u4e2a\u4efb\u52a1\u3001\u6301\u7eed\u65f6\u95f4\u548c\u4f9d\u8d56\u5173\u7cfb\u3002\u901a\u8fc7\u8bc6\u522b\u5173\u952e\u8def\u5f84\uff0c\u80fd\u591f\u53cd\u5411\u63a8\u7b97\u51fa\u6bcf\u4e2a\u4efb\u52a1\u7684\u6700\u665a\u5b8c\u6210\u65f6\u95f4\u3002LF\u7684\u8ba1\u7b97\u516c\u5f0f\u901a\u5e38\u662f\uff1aLF = LF\uff08\u540e\u7eed\u4efb\u52a1\uff09 &#8211; \u4efb\u52a1\u6301\u7eed\u65f6\u95f4\u3002<\/p>\n<p><strong>LF\u5728\u9879\u76ee\u7ba1\u7406\u4e2d\u7684\u91cd\u8981\u6027\u662f\u4ec0\u4e48\uff1f<\/strong><br \/>LF\u5728\u9879\u76ee\u7ba1\u7406\u4e2d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5b83\u5e2e\u52a9<a href=\"https:\/\/docs.pingcode.com\/blog\/project-management\/61672.html\" target=\"_blank\">\u9879\u76ee\u7ecf\u7406<\/a>\u8bc6\u522b\u4efb\u52a1\u7684\u7075\u6d3b\u6027\uff0c\u5236\u5b9a\u5408\u7406\u7684\u65f6\u95f4\u8868\uff0c\u5e76\u5728\u5fc5\u8981\u65f6\u8fdb\u884c\u8c03\u6574\u3002\u901a\u8fc7\u660e\u786eLF\uff0c\u9879\u76ee\u56e2\u961f\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u5e94\u5bf9\u6f5c\u5728\u7684\u5ef6\u8bef\uff0c\u5e76\u786e\u4fdd\u9879\u76ee\u6309\u65f6\u5b8c\u6210\uff0c\u4ece\u800c\u63d0\u9ad8\u6574\u4f53\u9879\u76ee\u7684\u6210\u529f\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u9879\u76ee\u7ba1\u7406\u4e2d\u7684LF\uff08Latest Finish\uff09\u662f\u6307\u67d0\u9879\u4efb\u52a1\u6216\u6d3b\u52a8\u53ef\u4ee5\u6700\u665a\u5b8c\u6210\u7684\u65f6\u95f4\uff0c\u800c\u4e0d\u5f71\u54cd\u6574\u4e2a\u9879\u76ee\u7684\u5b8c\u6210\u65f6\u95f4 [&hellip;]","protected":false},"author":3,"featured_media":1289321,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1289317"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1289317"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1289317\/revisions"}],"predecessor-version":[{"id":1289322,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1289317\/revisions\/1289322"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1289321"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1289317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1289317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1289317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}