{"id":170167,"date":"2024-11-06T21:42:19","date_gmt":"2024-11-06T13:42:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/170167\/"},"modified":"2024-11-06T21:42:19","modified_gmt":"2024-11-06T13:42:19","slug":"%e6%8e%92%e5%ba%8fredis%e5%af%a6%e7%8f%be%e5%80%bc%e9%99%8d%e5%ba%8f%e6%8e%92%e5%ba%8f%e7%9a%84%e5%af%a6%e6%88%b0%ef%bc%88redis%e6%a0%b9%e6%93%9a%e5%80%bc%e4%be%86%e9%99%8d%e5%ba%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/170167\/","title":{"rendered":"\u6392\u5e8fRedis\u5be6\u73fe\u503c\u964d\u5e8f\u6392\u5e8f\u7684\u5be6\u6230\uff08redis\u6839\u64da\u503c\u4f86\u964d\u5e8f\uff09"},"content":{"rendered":"<h1 id=\"%e6%8e%92%e5%ba%8fredis%e5%af%a6%e7%8f%be%e5%80%bc%e9%99%8d%e5%ba%8f%e6%8e%92%e5%ba%8f%e7%9a%84%e5%af%a6%e6%88%b0%ef%bc%88redis%e6%a0%b9%e6%93%9a%e5%80%bc%e4%be%86%e9%99%8d%e5%ba%8f%ef%bc%89-EgDPGyheSu\">\u6392\u5e8fRedis\u5be6\u73fe\u503c\u964d\u5e8f\u6392\u5e8f\u7684\u5be6\u6230\uff08redis\u6839\u64da\u503c\u4f86\u964d\u5e8f\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u67e5\u8a62\u548c\u6392\u5e8f\u7684\u60c5\u6cc1\u4e0b\uff0cRedis\u7684\u6027\u80fd\u8868\u73fe\u5c24\u70ba\u7a81\u51fa\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u6839\u64da\u503c\u9032\u884c\u964d\u5e8f\u6392\u5e8f\u7684\u5177\u9ad4\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u5be6\u969b\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"redis%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b%e6%a6%82%e8%bf%b0-EgDPGyheSu\">Redis\u6578\u64da\u7d50\u69cb\u6982\u8ff0<\/h2>\n<p>Redis\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u7b49\u3002\u5728\u9032\u884c\u503c\u7684\u6392\u5e8f\u6642\uff0c\u6700\u5e38\u7528\u7684\u6578\u64da\u7d50\u69cb\u662f\u6709\u5e8f\u96c6\u5408\uff08Sorted Set\uff09\u3002\u6709\u5e8f\u96c6\u5408\u4e2d\u7684\u6bcf\u500b\u5143\u7d20\u90fd\u6709\u4e00\u500b\u5206\u6578\uff08score\uff09\uff0c\u6839\u64da\u9019\u500b\u5206\u6578\uff0cRedis\u80fd\u5920\u81ea\u52d5\u5c0d\u5143\u7d20\u9032\u884c\u6392\u5e8f\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%9c%89%e5%ba%8f%e9%9b%86%e5%90%88%e9%80%b2%e8%a1%8c%e9%99%8d%e5%ba%8f%e6%8e%92%e5%ba%8f-EgDPGyheSu\">\u4f7f\u7528\u6709\u5e8f\u96c6\u5408\u9032\u884c\u964d\u5e8f\u6392\u5e8f<\/h2>\n<p>\u8981\u5be6\u73fe\u6839\u64da\u503c\u7684\u964d\u5e8f\u6392\u5e8f\uff0c\u9996\u5148\u9700\u8981\u5c07\u6578\u64da\u5b58\u5132\u5728\u6709\u5e8f\u96c6\u5408\u4e2d\u3002\u4ee5\u4e0b\u662f\u5c07\u6578\u64da\u6dfb\u52a0\u5230\u6709\u5e8f\u96c6\u5408\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>ZADD key score member<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u7d44\u7528\u6236\u53ca\u5176\u5c0d\u61c9\u7684\u5206\u6578\uff0c\u6211\u5011\u53ef\u4ee5\u9019\u6a23\u6dfb\u52a0\u6578\u64da\uff1a<\/p>\n<pre><code>ZADD user_scores 100 \"Alice\"\nZADD user_scores 200 \"Bob\"\nZADD user_scores 150 \"Charlie\"<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6211\u5011\u5c31\u5c07\u4e09\u500b\u7528\u6236\u53ca\u5176\u5206\u6578\u5b58\u5132\u5728\u540d\u70ba <code>user_scores<\/code> \u7684\u6709\u5e8f\u96c6\u5408\u4e2d\u3002<\/p>\n<h2 id=\"%e7%8d%b2%e5%8f%96%e9%99%8d%e5%ba%8f%e6%8e%92%e5%ba%8f%e7%9a%84%e7%b5%90%e6%9e%9c-EgDPGyheSu\">\u7372\u53d6\u964d\u5e8f\u6392\u5e8f\u7684\u7d50\u679c<\/h2>\n<p>\u8981\u6839\u64da\u5206\u6578\u9032\u884c\u964d\u5e8f\u6392\u5e8f\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 <code>ZREVRANGE<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u6307\u5b9a\u7bc4\u570d\u5167\u7684\u6210\u54e1\uff0c\u4e26\u6309\u7167\u5206\u6578\u7684\u964d\u5e8f\u6392\u5217\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>ZREVRANGE key start stop [WITHSCORES]<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u7372\u53d6\u6240\u6709\u7528\u6236\u7684\u5206\u6578\uff0c\u4e26\u6309\u7167\u964d\u5e8f\u6392\u5217\uff0c\u53ef\u4ee5\u9019\u6a23\u57f7\u884c\uff1a<\/p>\n<pre><code>ZREVRANGE user_scores 0 -1 WITHSCORES<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u8fd4\u56de\u6240\u6709\u7528\u6236\u53ca\u5176\u5206\u6578\uff0c\u4e26\u6309\u7167\u5206\u6578\u5f9e\u9ad8\u5230\u4f4e\u7684\u9806\u5e8f\u6392\u5217\u3002<\/p>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e5%ae%8c%e6%95%b4%e7%9a%84%e5%af%a6%e7%8f%be-EgDPGyheSu\">\u7bc4\u4f8b\uff1a\u5b8c\u6574\u7684\u5be6\u73fe<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u6839\u64da\u503c\u7684\u964d\u5e8f\u6392\u5e8f\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u6dfb\u52a0\u6578\u64da\u5230\u6709\u5e8f\u96c6\u5408\nr.zadd('user_scores', {'Alice': 100, 'Bob': 200, 'Charlie': 150})\n\n# \u7372\u53d6\u964d\u5e8f\u6392\u5e8f\u7684\u7d50\u679c\nsorted_users = r.zrevrange('user_scores', 0, -1, withscores=True)\n\n# \u8f38\u51fa\u7d50\u679c\nfor user, score in sorted_users:\n    print(f'{user.decode(\"utf-8\")}: {score}')  # \u89e3\u78bc\u70ba\u5b57\u7b26\u4e32<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0\u4ee3\u78bc\u5f8c\uff0c\u5c07\u8f38\u51fa\uff1a<\/p>\n<pre><code>Bob: 200.0\nCharlie: 150.0\nAlice: 100.0<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-EgDPGyheSu\">\u7d50\u8ad6<\/h2>\n<p>\u901a\u904e\u4f7f\u7528Redis\u7684\u6709\u5e8f\u96c6\u5408\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u6839\u64da\u503c\u7684\u964d\u5e8f\u6392\u5e8f\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u9ad8\u6548\uff0c\u800c\u4e14\u80fd\u5920\u5feb\u901f\u97ff\u61c9\u67e5\u8a62\u9700\u6c42\uff0c\u9069\u5408\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u5834\u666f\u3002\u7121\u8ad6\u662f\u7528\u65bc\u6392\u884c\u699c\u3001\u7d71\u8a08\u6578\u64da\u9084\u662f\u5176\u4ed6\u9700\u8981\u6392\u5e8f\u7684\u5834\u666f\uff0cRedis\u90fd\u80fd\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684Redis\u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u4e86\u7a69\u5b9a\u4e14\u9ad8\u6027\u80fd\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u64f4\u5c55\u60a8\u7684\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u503c\u7684\u964d\u5e8f\u6392\u5e8f\uff0c\u638c\u63e1\u5be6\u6230\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\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-170167","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170167","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=170167"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170167\/revisions"}],"predecessor-version":[{"id":170168,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170167\/revisions\/170168"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=170167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=170167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=170167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}