{"id":129537,"date":"2024-10-26T22:22:19","date_gmt":"2024-10-26T14:22:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129537\/"},"modified":"2024-10-26T22:22:21","modified_gmt":"2024-10-26T14:22:21","slug":"redis%e8%b7%b3%e8%a1%a8-%e6%8f%90%e5%8d%87%e6%88%90%e5%8a%9f%e7%8e%87%e7%9a%84%e5%88%a9%e5%99%a8%ef%bc%88redis%e8%b7%b3%e8%a1%a8%e4%b8%8a%e5%8d%87%e6%a6%82%e7%8e%87%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129537\/","title":{"rendered":"Redis\u8df3\u8868 \u63d0\u5347\u6210\u529f\u7387\u7684\u5229\u5668\uff08redis\u8df3\u8868\u4e0a\u5347\u6982\u7387\uff09"},"content":{"rendered":"<h1 id=\"redis%e8%b7%b3%e8%a1%a8-%e6%8f%90%e5%8d%87%e6%88%90%e5%8a%9f%e7%8e%87%e7%9a%84%e5%88%a9%e5%99%a8%ef%bc%88redis%e8%b7%b3%e8%a1%a8%e4%b8%8a%e5%8d%87%e6%a6%82%e7%8e%87%ef%bc%89-iZvNHvZoAB\">Redis\u8df3\u8868 \u63d0\u5347\u6210\u529f\u7387\u7684\u5229\u5668\uff08redis\u8df3\u8868\u4e0a\u5347\u6982\u7387\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u8655\u7406\u548c\u5b58\u5132\u9700\u6c42\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u958b\u767c\u8005\u7684\u9996\u9078\u3002\u5176\u5167\u90e8\u6578\u64da\u7d50\u69cb\u7684\u591a\u6a23\u6027\u4f7f\u5f97Redis\u80fd\u5920\u5728\u4e0d\u540c\u7684\u5834\u666f\u4e2d\u63d0\u4f9b\u512a\u5316\u7684\u6027\u80fd\u3002\u5176\u4e2d\uff0c\u8df3\u8868\uff08Skip List\uff09\u4f5c\u70baRedis\u7684\u4e00\u7a2e\u91cd\u8981\u6578\u64da\u7d50\u69cb\uff0c\u56e0\u5176\u7368\u7279\u7684\u7279\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u95dc\u6ce8\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%b7%b3%e8%a1%a8%ef%bc%9f-iZvNHvZoAB\">\u4ec0\u9ebc\u662f\u8df3\u8868\uff1f<\/h2>\n<p>\u8df3\u8868\u662f\u4e00\u7a2e\u96a8\u6a5f\u5316\u7684\u6578\u64da\u7d50\u69cb\uff0c\u65e8\u5728\u63d0\u9ad8\u6709\u5e8f\u93c8\u8868\u7684\u67e5\u627e\u6548\u7387\u3002\u5b83\u901a\u904e\u5728\u591a\u5c64\u93c8\u8868\u4e2d\u5efa\u7acb\u7d22\u5f15\uff0c\u4f86\u5be6\u73fe\u5feb\u901f\u7684\u67e5\u627e\u3001\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u3002\u8df3\u8868\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\u901f\u5ea6\u3002<\/p>\n<h2 id=\"%e8%b7%b3%e8%a1%a8%e7%9a%84%e7%b5%90%e6%a7%8b-iZvNHvZoAB\">\u8df3\u8868\u7684\u7d50\u69cb<\/h2>\n<p>\u8df3\u8868\u7684\u7d50\u69cb\u53ef\u4ee5\u8996\u70ba\u4e00\u500b\u591a\u5c64\u7684\u93c8\u8868\u3002\u6bcf\u4e00\u5c64\u7684\u5143\u7d20\u90fd\u662f\u4e0b\u5c64\u5143\u7d20\u7684\u5b50\u96c6\uff0c\u9019\u6a23\u5728\u67e5\u627e\u6642\u53ef\u4ee5\u901a\u904e\u8df3\u904e\u591a\u500b\u5143\u7d20\u4f86\u52a0\u5feb\u901f\u5ea6\u3002\u5177\u9ad4\u4f86\u8aaa\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u6709\u5e8f\u93c8\u8868\uff0c\u7576\u6211\u5011\u63d2\u5165\u4e00\u500b\u65b0\u5143\u7d20\u6642\uff0c\u6703\u96a8\u6a5f\u6c7a\u5b9a\u9019\u500b\u5143\u7d20\u5728\u8df3\u8868\u4e2d\u7684\u5c64\u6578\u3002\u9019\u6a23\u7684\u96a8\u6a5f\u6027\u4f7f\u5f97\u8df3\u8868\u5728\u5e73\u5747\u60c5\u6cc1\u4e0b\u80fd\u5920\u9054\u5230 O(log n) \u7684\u67e5\u627e\u6642\u9593\u8907\u96dc\u5ea6\u3002<\/p>\n<h2 id=\"%e8%b7%b3%e8%a1%a8%e7%9a%84%e4%b8%8a%e5%8d%87%e6%a6%82%e7%8e%87-iZvNHvZoAB\">\u8df3\u8868\u7684\u4e0a\u5347\u6982\u7387<\/h2>\n<p>\u5728\u8df3\u8868\u4e2d\uff0c\u6bcf\u500b\u5143\u7d20\u7684\u4e0a\u5347\u6982\u7387\u662f\u6c7a\u5b9a\u5176\u5c64\u6578\u7684\u95dc\u9375\u3002\u901a\u5e38\uff0c\u7576\u63d2\u5165\u4e00\u500b\u65b0\u5143\u7d20\u6642\uff0c\u6703\u4ee5 50% \u7684\u6982\u7387\u6c7a\u5b9a\u662f\u5426\u5c07\u5176\u63d0\u5347\u5230\u4e0a\u4e00\u5c64\u3002\u9019\u610f\u5473\u8457\uff0c\u82e5\u4e00\u500b\u5143\u7d20\u5728\u7b2c k \u5c64\uff0c\u5247\u5b83\u5728\u7b2c k+1 \u5c64\u7684\u6982\u7387\u70ba 0.5\uff0c\u9019\u6a23\u7684\u8a2d\u8a08\u4f7f\u5f97\u8df3\u8868\u7684\u9ad8\u5ea6\u4fdd\u6301\u5728 O(log n) \u7684\u7bc4\u570d\u5167\u3002<\/p>\n<h3 id=\"%e4%b8%8a%e5%8d%87%e6%a6%82%e7%8e%87%e7%9a%84%e5%bd%b1%e9%9f%bf-iZvNHvZoAB\">\u4e0a\u5347\u6982\u7387\u7684\u5f71\u97ff<\/h3>\n<p>\u4e0a\u5347\u6982\u7387\u7684\u8a2d\u8a08\u5c0d\u8df3\u8868\u7684\u6027\u80fd\u6709\u8457\u76f4\u63a5\u7684\u5f71\u97ff\u3002\u82e5\u4e0a\u5347\u6982\u7387\u904e\u9ad8\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u8df3\u8868\u7684\u9ad8\u5ea6\u904e\u9ad8\uff0c\u5f9e\u800c\u5f71\u97ff\u67e5\u627e\u6548\u7387\uff1b\u53cd\u4e4b\uff0c\u82e5\u4e0a\u5347\u6982\u7387\u904e\u4f4e\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u8df3\u8868\u7684\u5c64\u6578\u904e\u5c11\uff0c\u7121\u6cd5\u5145\u5206\u5229\u7528\u8df3\u8868\u7684\u512a\u52e2\u3002\u56e0\u6b64\uff0c\u5408\u7406\u7684\u4e0a\u5347\u6982\u7387\u8a2d\u8a08\u662f\u78ba\u4fdd\u8df3\u8868\u6027\u80fd\u7684\u95dc\u9375\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84%e8%b7%b3%e8%a1%a8%e5%af%a6%e7%8f%be-iZvNHvZoAB\">Redis\u4e2d\u7684\u8df3\u8868\u5be6\u73fe<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u8df3\u8868\u4e3b\u8981\u7528\u65bc\u5be6\u73fe\u6709\u5e8f\u96c6\u5408\uff08Sorted Set\uff09\u3002\u6709\u5e8f\u96c6\u5408\u662f\u4e00\u7a2e\u53ef\u4ee5\u6839\u64da\u5206\u6578\uff08score\uff09\u9032\u884c\u6392\u5e8f\u7684\u6578\u64da\u7d50\u69cb\uff0c\u4e26\u4e14\u652f\u6301\u5feb\u901f\u7684\u67e5\u627e\u548c\u7bc4\u570d\u67e5\u8a62\u3002Redis\u7684\u6709\u5e8f\u96c6\u5408\u4f7f\u7528\u8df3\u8868\u4f86\u5be6\u73fe\u5176\u5e95\u5c64\u6578\u64da\u7d50\u69cb\uff0c\u9019\u4f7f\u5f97\u5176\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u4ecd\u80fd\u4fdd\u6301\u9ad8\u6548\u7684\u6027\u80fd\u3002<\/p>\n<pre><code>\n# Redis\u4e2d\u6709\u5e8f\u96c6\u5408\u7684\u57fa\u672c\u64cd\u4f5c\u793a\u4f8b\nZADD myset 1 \"one\" 2 \"two\" 3 \"three\"\nZRANGE myset 0 -1 WITHSCORES\n<\/code><\/pre>\n<h2 id=\"%e8%b7%b3%e8%a1%a8%e7%9a%84%e5%84%aa%e5%8b%a2-iZvNHvZoAB\">\u8df3\u8868\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u9ad8\u6548\u67e5\u627e\uff1a<\/strong>\u8df3\u8868\u7684\u67e5\u627e\u6642\u9593\u8907\u96dc\u5ea6\u70ba O(log n)\uff0c\u5728\u5927\u6578\u64da\u91cf\u7684\u60c5\u6cc1\u4e0b\u4ecd\u80fd\u4fdd\u6301\u9ad8\u6548\u3002<\/li>\n<li><strong>\u96a8\u6a5f\u6027\uff1a<\/strong>\u8df3\u8868\u7684\u96a8\u6a5f\u6027\u8a2d\u8a08\u4f7f\u5f97\u5176\u5728\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u4e0a\u4e5f\u80fd\u4fdd\u6301\u826f\u597d\u7684\u6027\u80fd\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u5be6\u73fe\uff1a<\/strong>\u76f8\u8f03\u65bc\u5176\u4ed6\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5e73\u8861\u6a39\uff0c\u8df3\u8868\u7684\u5be6\u73fe\u76f8\u5c0d\u7c21\u55ae\uff0c\u6613\u65bc\u7406\u89e3\u548c\u7dad\u8b77\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-iZvNHvZoAB\">\u7e3d\u7d50<\/h2>\n<p>\u8df3\u8868\u4f5c\u70baRedis\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u6578\u64da\u7d50\u69cb\uff0c\u901a\u904e\u5176\u7368\u7279\u7684\u4e0a\u5347\u6982\u7387\u8a2d\u8a08\uff0c\u5be6\u73fe\u4e86\u9ad8\u6548\u7684\u67e5\u627e\u548c\u64cd\u4f5c\u6027\u80fd\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u8df3\u8868\u7684\u512a\u52e2\u6108\u52a0\u660e\u986f\uff0c\u6210\u70ba\u8a31\u591a\u61c9\u7528\u5834\u666f\u4e2d\u7684\u7406\u60f3\u9078\u64c7\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u53d6\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3\u548c\u638c\u63e1\u8df3\u8868\u7684\u7279\u6027\u7121\u7591\u662f\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u91cd\u8981\u4e00\u6b65\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u8df3\u8868\u901a\u8fc7\u4f18\u5316\u4e0a\u5347\u6982\u7387\uff0c\u663e\u8457\u63d0\u5347\u6570\u636e\u68c0\u7d22\u6210\u529f\u7387\uff0c\u662f\u9ad8\u6548\u5b58\u50a8\u4e0e\u5feb\u901f\u8bbf\u95ee\u7684\u7406\u60f3\u9009\u62e9\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-129537","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129537","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=129537"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129537\/revisions"}],"predecessor-version":[{"id":129538,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129537\/revisions\/129538"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}