{"id":152543,"date":"2024-11-01T23:59:21","date_gmt":"2024-11-01T15:59:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152543\/"},"modified":"2024-11-01T23:59:22","modified_gmt":"2024-11-01T15:59:22","slug":"%e6%9f%a5%e7%9c%8b-redis-%e5%88%97%e8%a1%a8%e9%95%b7%e5%ba%a6%e7%9a%84%e5%af%a6%e8%b8%90%e6%96%b9%e6%b3%95%ef%bc%88%e6%b1%82-redis-%e7%9a%84%e5%88%97%e8%a1%a8%e9%95%b7%e5%ba%a6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152543\/","title":{"rendered":"\u67e5\u770b Redis \u5217\u8868\u9577\u5ea6\u7684\u5be6\u8e10\u65b9\u6cd5\uff08\u6c42 Redis \u7684\u5217\u8868\u9577\u5ea6\uff09"},"content":{"rendered":"<h1 id=\"%e6%9f%a5%e7%9c%8b-redis-%e5%88%97%e8%a1%a8%e9%95%b7%e5%ba%a6%e7%9a%84%e5%af%a6%e8%b8%90%e6%96%b9%e6%b3%95%ef%bc%88%e6%b1%82-redis-%e7%9a%84%e5%88%97%e8%a1%a8%e9%95%b7%e5%ba%a6%ef%bc%89-KQaMmfWAZk\">\u67e5\u770b Redis \u5217\u8868\u9577\u5ea6\u7684\u5be6\u8e10\u65b9\u6cd5\uff08\u6c42 Redis \u7684\u5217\u8868\u9577\u5ea6\uff09<\/h1>\n<p>Redis \u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u5b58\u53d6\u6578\u64da\u7684\u61c9\u7528\u4e2d\u3002\u4f5c\u70ba\u4e00\u7a2e\u6578\u64da\u7d50\u69cb\u670d\u52d9\uff0cRedis \u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5176\u4e2d\u5217\u8868\uff08List\uff09\u662f\u4e00\u7a2e\u975e\u5e38\u5e38\u7528\u7684\u6578\u64da\u7d50\u69cb\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u67e5\u770b Redis \u5217\u8868\u7684\u9577\u5ea6\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u8e10\u65b9\u6cd5\u548c\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"redis-%e5%88%97%e8%a1%a8%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-KQaMmfWAZk\">Redis \u5217\u8868\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u5217\u8868\u662f\u4e00\u500b\u6709\u5e8f\u7684\u5b57\u7b26\u4e32\u96c6\u5408\uff0c\u5141\u8a31\u91cd\u8907\u7684\u5143\u7d20\u3002\u5217\u8868\u7684\u5143\u7d20\u53ef\u4ee5\u901a\u904e\u7d22\u5f15\u9032\u884c\u8a2a\u554f\uff0c\u4e26\u4e14\u652f\u6301\u5728\u5217\u8868\u7684\u5169\u7aef\u9032\u884c\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u3002\u9019\u4f7f\u5f97\u5217\u8868\u975e\u5e38\u9069\u5408\u7528\u65bc\u5be6\u73fe\u968a\u5217\u548c\u68e7\u7b49\u6578\u64da\u7d50\u69cb\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8b-redis-%e5%88%97%e8%a1%a8%e9%95%b7%e5%ba%a6%e7%9a%84%e5%91%bd%e4%bb%a4-KQaMmfWAZk\">\u67e5\u770b Redis \u5217\u8868\u9577\u5ea6\u7684\u547d\u4ee4<\/h2>\n<p>\u8981\u67e5\u770b Redis \u5217\u8868\u7684\u9577\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>LLEN<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u6307\u5b9a\u5217\u8868\u7684\u5143\u7d20\u6578\u91cf\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>LLEN key<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>key<\/code> \u662f\u4f60\u8981\u67e5\u8a62\u7684\u5217\u8868\u7684\u9375\u540d\u3002\u5982\u679c\u8a72\u9375\u4e0d\u5b58\u5728\uff0c\u5247\u8fd4\u56de 0\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-KQaMmfWAZk\">\u793a\u4f8b<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>mylist<\/code> \u7684\u5217\u8868\uff0c\u4e26\u4e14\u5df2\u7d93\u5411\u5176\u4e2d\u6dfb\u52a0\u4e86\u4e00\u4e9b\u5143\u7d20\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528 <code>LLEN<\/code> \u547d\u4ee4\u4f86\u67e5\u770b\u8a72\u5217\u8868\u7684\u9577\u5ea6\uff1a<\/p>\n<pre><code>127.0.0.1:6379&gt; LPUSH mylist \"apple\"\n127.0.0.1:6379&gt; LPUSH mylist \"banana\"\n127.0.0.1:6379&gt; LPUSH mylist \"cherry\"\n127.0.0.1:6379&gt; LLEN mylist\n(integer) 3<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5411 <code>mylist<\/code> \u5217\u8868\u4e2d\u6dfb\u52a0\u4e86\u4e09\u500b\u5143\u7d20\uff0c\u7136\u5f8c\u4f7f\u7528 <code>LLEN<\/code> \u547d\u4ee4\u67e5\u8a62\u5217\u8868\u7684\u9577\u5ea6\uff0c\u7d50\u679c\u986f\u793a\u70ba 3\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-redis-%e5%ae%a2%e6%88%b6%e7%ab%af%e6%9f%a5%e7%9c%8b%e5%88%97%e8%a1%a8%e9%95%b7%e5%ba%a6-KQaMmfWAZk\">\u4f7f\u7528 Redis \u5ba2\u6236\u7aef\u67e5\u770b\u5217\u8868\u9577\u5ea6<\/h2>\n<p>\u9664\u4e86\u5728\u547d\u4ee4\u884c\u4e2d\u4f7f\u7528 Redis CLI\uff0c\u9084\u53ef\u4ee5\u901a\u904e\u5404\u7a2e Redis \u5ba2\u6236\u7aef\u4f86\u67e5\u770b\u5217\u8868\u7684\u9577\u5ea6\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 Python \u7684 <code>redis-py<\/code> \u5eab\uff0c\u53ef\u4ee5\u9019\u6a23\u5be6\u73fe\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u6dfb\u52a0\u5143\u7d20\u5230\u5217\u8868\nr.lpush('mylist', 'apple')\nr.lpush('mylist', 'banana')\nr.lpush('mylist', 'cherry')\n\n# \u7372\u53d6\u5217\u8868\u9577\u5ea6\nlength = r.llen('mylist')\nprint(f'\u5217\u8868\u9577\u5ea6: {length}')  # \u8f38\u51fa: \u5217\u8868\u9577\u5ea6: 3<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-KQaMmfWAZk\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 <code>LLEN<\/code> \u547d\u4ee4\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u6307\u5b9a\u7684\u9375\u4e0d\u662f\u5217\u8868\u985e\u578b\uff0c\u5247\u6703\u8fd4\u56de\u932f\u8aa4\u3002<\/li>\n<li>\u5982\u679c\u9375\u4e0d\u5b58\u5728\uff0c\u5247\u8fd4\u56de 0\u3002<\/li>\n<li>\u5217\u8868\u7684\u9577\u5ea6\u662f\u52d5\u614b\u7684\uff0c\u96a8\u8457\u5143\u7d20\u7684\u6dfb\u52a0\u6216\u522a\u9664\u800c\u8b8a\u5316\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KQaMmfWAZk\">\u7e3d\u7d50<\/h2>\n<p>\u67e5\u770b Redis \u5217\u8868\u7684\u9577\u5ea6\u662f\u4e00\u500b\u7c21\u55ae\u800c\u6709\u6548\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u548c\u4f7f\u7528\u6578\u64da\u3002\u901a\u904e\u4f7f\u7528 <code>LLEN<\/code> \u547d\u4ee4\uff0c\u7121\u8ad6\u662f\u5728\u547d\u4ee4\u884c\u9084\u662f\u901a\u904e\u7de8\u7a0b\u8a9e\u8a00\u7684\u5ba2\u6236\u7aef\uff0c\u90fd\u80fd\u8f15\u9b06\u7372\u53d6\u5217\u8868\u7684\u9577\u5ea6\u3002\u9019\u5c0d\u65bc\u9700\u8981\u52d5\u614b\u7ba1\u7406\u6578\u64da\u7684\u61c9\u7528\u5834\u666f\u5c24\u70ba\u91cd\u8981\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\u7684 Redis \u5be6\u4f8b\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u67e5\u770b Redis \u5217\u8868\u7684\u9577\u5ea6\uff0c\u638c\u63e1\u5be6\u8e10\u65b9\u6cd5\uff0c\u8f15\u9b06\u7372\u53d6\u5217\u8868\u9577\u5ea6\u8cc7\u8a0a\uff0c\u63d0\u5347\u6578\u64da\u7ba1\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-152543","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152543","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=152543"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152543\/revisions"}],"predecessor-version":[{"id":152544,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152543\/revisions\/152544"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}