{"id":204922,"date":"2025-05-29T12:08:32","date_gmt":"2025-05-29T04:08:32","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204922\/"},"modified":"2025-05-29T12:08:32","modified_gmt":"2025-05-29T04:08:32","slug":"python%e6%9c%ac%e5%9c%b0%e7%bc%93%e5%ad%98%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0ttl%e5%8a%9f%e8%83%bd%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204922\/","title":{"rendered":"Python\u672c\u5730\u7f13\u5b58\u5982\u4f55\u5b9e\u73b0TTL\u529f\u80fd\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Python\u672c\u5730\u7f13\u5b58\u5982\u4f55\u5b9e\u73b0TTL\u529f\u80fd\uff1f <\/h1>\n<p>\u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300aPython\u672c\u5730\u7f13\u5b58\u5982\u4f55\u5b9e\u73b0TTL\u529f\u80fd\uff1f \u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241119\/1732000916673c3c94c2ce9.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>python \u5b9e\u7528\u5e26 ttl \u672c\u5730\u7f13\u5b58\u5e93\u63a8\u8350<\/strong><\/p>\n<p>\u5728 python \u5f00\u53d1\u4e2d\uff0c\u5f00\u53d1\u8005\u5e38\u5e38\u9700\u8981\u4f7f\u7528\u672c\u5730\u7f13\u5b58\u6765\u63d0\u5347\u6027\u80fd\u3002\u5982\u679c\u5e0c\u671b\u6784\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u5e26 ttl\uff08\u751f\u5b58\u65f6\u95f4\uff09\u529f\u80fd\u7684\u7f13\u5b58\uff0c\u800c\u4e0d\u501f\u52a9\u4e8e redis \u7b49\u5916\u90e8\u670d\u52a1\uff0c\u90a3\u4e48\u53ef\u4ee5\u8003\u8651\u4ee5\u4e0b\u8f7b\u91cf\u7ea7\u7684\u7f13\u5b58\u5e93\uff1a<\/p>\n<p><strong>cachetools<\/strong><\/p>\n<p>cachetools \u662f\u4e00\u4e2a\u529f\u80fd\u4e30\u5bcc\u7684 python \u7f13\u5b58\u5e93\uff0c\u63d0\u4f9b\u4e86\u591a\u79cd\u7f13\u5b58\u7b56\u7565\uff0c\u5176\u4e2d\u5c31\u5305\u62ec\u5e26 ttl \u529f\u80fd\u7684\u7f13\u5b58\u3002\u5b83\u652f\u6301\u5982\u4e0b\u7279\u6027\uff1a<\/p>\n<ul>\n<li>\u81ea\u5b9a\u4e49 ttl \u8fc7\u671f\u65f6\u95f4<\/li>\n<li>\u6700\u8fd1\u6700\u5c11\u4f7f\u7528 (lru) \u66ff\u6362\u7b56\u7565<\/li>\n<li>\u65f6\u95f4\u9a71\u9010\u7b56\u7565<\/li>\n<\/ul>\n<p>\u8981\u4f7f\u7528 cachetools \u4e2d\u7684 ttl \u529f\u80fd\uff0c\u53ef\u4ee5\u4f7f\u7528 ttlcache \u7c7b\uff1a<\/p>\n<pre>from cachetools import TTLCache\n\n# \u521b\u5efa\u4e00\u4e2a\u5177\u6709 30 \u79d2 TTL \u7684\u7f13\u5b58\ncache = TTLCache(maxsize=100, ttl=30)\n\n# \u8bbe\u7f6e\u5177\u6709 60 \u79d2 TTL \u7684\u7f13\u5b58\u9879\ncache[\"key\"] = \"value\"<\/pre>\n<p>cachetools \u4f7f\u7528\u65f6\u95f4\u6233\u6765\u8ddf\u8e2a\u7f13\u5b58\u9879\u7684\u751f\u5b58\u65f6\u95f4\uff0c\u63d0\u4f9b\u4e86\u7075\u6d3b\u4e14\u6613\u4e8e\u4f7f\u7528\u7684\u672c\u5730\u7f13\u5b58\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python\u672c\u5730\u7f13\u5b58\u5982\u4f55\u5b9e\u73b0TT&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204922","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204922","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204922"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204922\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204922"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204922"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204922"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}