{"id":129555,"date":"2024-10-26T22:30:31","date_gmt":"2024-10-26T14:30:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129555\/"},"modified":"2024-10-26T22:30:33","modified_gmt":"2024-10-26T14:30:33","slug":"redis%e8%b7%b3%e8%a1%a8%e5%84%aa%e5%8c%96%e6%9f%a5%e6%89%be%e6%80%a7%e8%83%bd%e7%9a%84%e9%97%9c%e9%8d%b5%e6%8a%80%e8%a1%93%ef%bc%88redis%e8%b7%b3%e8%a1%a8%e6%87%89%e7%94%a8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129555\/","title":{"rendered":"Redis\u8df3\u8868\u512a\u5316\u67e5\u627e\u6027\u80fd\u7684\u95dc\u9375\u6280\u8853\uff08redis\u8df3\u8868\u61c9\u7528\uff09"},"content":{"rendered":"<h1 id=\"redis%e8%b7%b3%e8%a1%a8%e5%84%aa%e5%8c%96%e6%9f%a5%e6%89%be%e6%80%a7%e8%83%bd%e7%9a%84%e9%97%9c%e9%8d%b5%e6%8a%80%e8%a1%93%ef%bc%88redis%e8%b7%b3%e8%a1%a8%e6%87%89%e7%94%a8%ef%bc%89-OkrENqeHiL\">Redis\u8df3\u8868\u512a\u5316\u67e5\u627e\u6027\u80fd\u7684\u95dc\u9375\u6280\u8853\uff08redis\u8df3\u8868\u61c9\u7528\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5b58\u5132\u548c\u6aa2\u7d22\u7684\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5176\u4e2d\u8df3\u8868\uff08Skip List\uff09\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u6578\u64da\u7d50\u69cb\uff0c\u80fd\u5920\u986f\u8457\u63d0\u5347\u67e5\u627e\u6027\u80fd\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u4e2d\u8df3\u8868\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u512a\u5316\u67e5\u627e\u6027\u80fd\u7684\u95dc\u9375\u6280\u8853\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%b7%b3%e8%a1%a8%ef%bc%9f-OkrENqeHiL\">\u4ec0\u9ebc\u662f\u8df3\u8868\uff1f<\/h2>\n<p>\u8df3\u8868\u662f\u4e00\u7a2e\u57fa\u65bc\u93c8\u8868\u7684\u6578\u64da\u7d50\u69cb\uff0c\u901a\u904e\u591a\u5c64\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u627e\u904e\u7a0b\u3002\u5b83\u7684\u57fa\u672c\u601d\u60f3\u662f\u5c07\u4e00\u500b\u6709\u5e8f\u7684\u93c8\u8868\u5206\u5c64\uff0c\u6bcf\u4e00\u5c64\u90fd\u662f\u5c0d\u4e0b\u5c64\u93c8\u8868\u7684\u5b50\u96c6\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u67e5\u627e\u6642\u8df3\u904e\u591a\u500b\u5143\u7d20\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u627e\u6548\u7387\u3002\u8df3\u8868\u7684\u6642\u9593\u8907\u96dc\u5ea6\u70baO(log n)\uff0c\u800c\u7a7a\u9593\u8907\u96dc\u5ea6\u70baO(n)\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u9700\u8981\u983b\u7e41\u67e5\u627e\u7684\u5834\u666f\u4e2d\u8868\u73fe\u512a\u7570\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84%e8%b7%b3%e8%a1%a8%e5%af%a6%e7%8f%be-OkrENqeHiL\">Redis\u4e2d\u7684\u8df3\u8868\u5be6\u73fe<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u8df3\u8868\u88ab\u7528\u4f86\u5be6\u73fe\u6709\u5e8f\u96c6\u5408\uff08Sorted Set\uff09\u3002\u6bcf\u500b\u6709\u5e8f\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u90fd\u6709\u4e00\u500b\u5206\u6578\uff08score\uff09\uff0c\u6839\u64da\u5206\u6578\u9032\u884c\u6392\u5e8f\u3002Redis\u7684\u8df3\u8868\u7531\u591a\u500b\u5c64\u7d1a\u7d44\u6210\uff0c\u6bcf\u4e00\u5c64\u90fd\u5305\u542b\u6307\u5411\u4e0b\u5c64\u5143\u7d20\u7684\u6307\u91dd\uff0c\u9019\u6a23\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u5230\u76ee\u6a19\u5143\u7d20\u3002<\/p>\n<h3 id=\"%e8%b7%b3%e8%a1%a8%e7%9a%84%e7%b5%90%e6%a7%8b-OkrENqeHiL\">\u8df3\u8868\u7684\u7d50\u69cb<\/h3>\n<ul>\n<li>\u6bcf\u500b\u7bc0\u9ede\u5305\u542b\u4e09\u500b\u90e8\u5206\uff1a\u5143\u7d20\u7684\u503c\u3001\u5206\u6578\u548c\u6307\u5411\u4e0b\u4e00\u500b\u7bc0\u9ede\u7684\u6307\u91dd\u3002<\/li>\n<li>\u8df3\u8868\u7684\u5c64\u6578\u662f\u96a8\u6a5f\u751f\u6210\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u4fdd\u8b49\u5728\u5e73\u5747\u60c5\u6cc1\u4e0b\u67e5\u627e\u7684\u6548\u7387\u3002<\/li>\n<li>\u7576\u63d2\u5165\u65b0\u5143\u7d20\u6642\uff0c\u6839\u64da\u96a8\u6a5f\u7b97\u6cd5\u6c7a\u5b9a\u5176\u5c64\u6578\uff0c\u4e26\u5728\u76f8\u61c9\u5c64\u7d1a\u4e2d\u63d2\u5165\u3002<\/li>\n<\/ul>\n<h3 id=\"%e6%9f%a5%e6%89%be%e6%93%8d%e4%bd%9c-OkrENqeHiL\">\u67e5\u627e\u64cd\u4f5c<\/h3>\n<p>\u67e5\u627e\u64cd\u4f5c\u5f9e\u6700\u9ad8\u5c64\u958b\u59cb\uff0c\u901a\u904e\u6bd4\u8f03\u7576\u524d\u7bc0\u9ede\u7684\u5206\u6578\u4f86\u6c7a\u5b9a\u662f\u5426\u5411\u4e0b\u79fb\u52d5\u5230\u4e0b\u4e00\u5c64\u3002\u9019\u6a23\u7684\u67e5\u627e\u904e\u7a0b\u80fd\u5920\u5feb\u901f\u7e2e\u5c0f\u67e5\u627e\u7bc4\u570d\uff0c\u6700\u7d42\u5b9a\u4f4d\u5230\u76ee\u6a19\u5143\u7d20\u3002\u4ee5\u4e0b\u662f\u67e5\u627e\u64cd\u4f5c\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nfunction search(value):\n    current = highest_level_node\n    for level in range(max_level, -1, -1):\n        while current.next[level] and current.next[level].score &lt; value.score:\n            current = current.next[level]\n    current = current.next[0]\n    if current and current.value == value:\n        return current\n    return None\n<\/code><\/pre>\n<h2 id=\"%e8%b7%b3%e8%a1%a8%e7%9a%84%e5%84%aa%e5%8c%96%e6%8a%80%e8%a1%93-OkrENqeHiL\">\u8df3\u8868\u7684\u512a\u5316\u6280\u8853<\/h2>\n<p>\u70ba\u4e86\u9032\u4e00\u6b65\u63d0\u5347\u67e5\u627e\u6027\u80fd\uff0cRedis\u5728\u8df3\u8868\u7684\u5be6\u73fe\u4e2d\u63a1\u7528\u4e86\u5e7e\u7a2e\u512a\u5316\u6280\u8853\uff1a<\/p>\n<ul>\n<li><strong>\u96a8\u6a5f\u5316\u5c64\u6578\uff1a<\/strong>\u901a\u904e\u96a8\u6a5f\u7b97\u6cd5\u6c7a\u5b9a\u6bcf\u500b\u7bc0\u9ede\u7684\u5c64\u6578\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u6700\u58de\u60c5\u6cc1\u7684\u51fa\u73fe\uff0c\u4fdd\u8b49\u67e5\u627e\u6548\u7387\u3002<\/li>\n<li><strong>\u61f6\u60f0\u522a\u9664\uff1a<\/strong>\u5728\u522a\u9664\u5143\u7d20\u6642\uff0c\u4e26\u4e0d\u7acb\u5373\u5f9e\u8df3\u8868\u4e2d\u79fb\u9664\uff0c\u800c\u662f\u6a19\u8a18\u70ba\u522a\u9664\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u7d50\u69cb\u8abf\u6574\u7684\u983b\u7387\u3002<\/li>\n<li><strong>\u6279\u91cf\u64cd\u4f5c\uff1a<\/strong>\u652f\u6301\u6279\u91cf\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\uff0c\u6e1b\u5c11\u591a\u6b21\u8abf\u6574\u7d50\u69cb\u7684\u958b\u92b7\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-OkrENqeHiL\">\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u8df3\u8868\u5728Redis\u4e2d\u7684\u61c9\u7528\u5834\u666f\u975e\u5e38\u5ee3\u6cdb\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9ad8\u6548\u67e5\u627e\u548c\u6392\u5e8f\u7684\u60c5\u6cc1\u4e0b\u3002\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u6392\u884c\u699c\uff1a\u53ef\u4ee5\u5feb\u901f\u67e5\u627e\u548c\u66f4\u65b0\u7528\u6236\u7684\u6392\u540d\u3002<\/li>\n<li>\u6642\u9593\u5e8f\u5217\u6578\u64da\uff1a\u80fd\u5920\u9ad8\u6548\u5730\u67e5\u627e\u7279\u5b9a\u6642\u9593\u7bc4\u570d\u5167\u7684\u6578\u64da\u3002<\/li>\n<li>\u5be6\u6642\u6578\u64da\u5206\u6790\uff1a\u652f\u6301\u5feb\u901f\u67e5\u8a62\u548c\u7d71\u8a08\u5206\u6790\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-OkrENqeHiL\">\u7e3d\u7d50<\/h2>\n<p>Redis\u4e2d\u7684\u8df3\u8868\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\uff0c\u901a\u904e\u591a\u5c64\u7d22\u5f15\u4f86\u512a\u5316\u67e5\u627e\u6027\u80fd\u3002\u5176\u96a8\u6a5f\u5316\u5c64\u6578\u3001\u61f6\u60f0\u522a\u9664\u548c\u6279\u91cf\u64cd\u4f5c\u7b49\u6280\u8853\u9032\u4e00\u6b65\u63d0\u5347\u4e86\u67e5\u627e\u6548\u7387\uff0c\u4f7f\u5176\u5728\u5404\u7a2e\u61c9\u7528\u5834\u666f\u4e2d\u8868\u73fe\u51fa\u8272\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u5b58\u5132\u548c\u6aa2\u7d22\u7684\u7528\u6236\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u8df3\u8868\u7684\u95dc\u9375\u6280\u8853\uff0c\u512a\u5316\u67e5\u627e\u6027\u80fd\uff0c\u63d0\u5347\u6578\u64da\u5b58\u53d6\u6548\u7387\uff0c\u5be6\u73fe\u9ad8\u6548\u80fd\u7684\u61c9\u7528\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-129555","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129555","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=129555"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129555\/revisions"}],"predecessor-version":[{"id":129556,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129555\/revisions\/129556"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}