{"id":128523,"date":"2024-10-26T14:47:16","date_gmt":"2024-10-26T06:47:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128523\/"},"modified":"2024-10-26T14:47:17","modified_gmt":"2024-10-26T06:47:17","slug":"redis-%e5%af%a6%e7%8f%be%e6%b5%ae%e9%bb%9e%e9%81%8b%e7%ae%97%e7%9a%84%e5%8a%a0%e6%b8%9b%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128523\/","title":{"rendered":"Redis \u5be6\u73fe\u6d6e\u9ede\u904b\u7b97\u7684\u52a0\u6e1b\u64cd\u4f5c"},"content":{"rendered":"

Redis \u5be6\u73fe\u6d6e\u9ede\u904b\u7b97\u7684\u52a0\u6e1b\u64cd\u4f5c<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u8655\u7406\u74b0\u5883\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u3002\u5176\u652f\u6301\u7684\u6578\u64da\u985e\u578b\u548c\u64cd\u4f5c\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u9748\u6d3b\u5730\u8655\u7406\u6578\u64da\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe\u6d6e\u9ede\u904b\u7b97\u7684\u52a0\u6e1b\u64cd\u4f5c\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n

Redis \u7684\u6578\u64da\u985e\u578b<\/h2>\n

Redis \u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u5176\u4e2d\uff0c\u5b57\u7b26\u4e32\u985e\u578b\u662f\u6700\u57fa\u672c\u7684\u6578\u64da\u985e\u578b\uff0c\u4e26\u4e14\u652f\u6301\u6d6e\u9ede\u6578\u7684\u5b58\u5132\u548c\u904b\u7b97\u3002\u9019\u4f7f\u5f97 Redis \u6210\u70ba\u9032\u884c\u6578\u5b78\u8a08\u7b97\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n

\u6d6e\u9ede\u6578\u7684\u5b58\u5132<\/h2>\n

\u5728 Redis \u4e2d\uff0c\u6d6e\u9ede\u6578\u53ef\u4ee5\u4f5c\u70ba\u5b57\u7b26\u4e32\u5b58\u5132\u3002\u9019\u610f\u5473\u8457\u6211\u5011\u53ef\u4ee5\u5c07\u6d6e\u9ede\u6578\u8f49\u63db\u70ba\u5b57\u7b26\u4e32\uff0c\u7136\u5f8c\u4f7f\u7528 Redis \u7684\u547d\u4ee4\u9032\u884c\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5c07\u6d6e\u9ede\u6578\u5b58\u5132\u5230 Redis \u7684\u793a\u4f8b\uff1a<\/p>\n

SET myfloat 3.14<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u5c07\u6d6e\u9ede\u6578 3.14 \u5b58\u5132\u5728\u9375\u540d\u70ba myfloat<\/code> \u7684\u4f4d\u7f6e\u3002<\/p>\n
\u6d6e\u9ede\u904b\u7b97\u7684\u52a0\u6e1b\u64cd\u4f5c<\/h2>\n
Redis \u63d0\u4f9b\u4e86 INCRBYFLOAT<\/code> \u547d\u4ee4\u4f86\u5be6\u73fe\u6d6e\u9ede\u6578\u7684\u52a0\u6cd5\u64cd\u4f5c\u3002\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u5c07\u6307\u5b9a\u9375\u7684\u503c\u589e\u52a0\u4e00\u500b\u6d6e\u9ede\u6578\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 INCRBYFLOAT<\/code> \u9032\u884c\u52a0\u6cd5\u64cd\u4f5c\u7684\u793a\u4f8b\uff1a<\/p>\n
INCRBYFLOAT myfloat 1.5<\/code><\/pre>\n
\u57f7\u884c\u9019\u689d\u547d\u4ee4\u5f8c\uff0cmyfloat<\/code> \u7684\u503c\u5c07\u8b8a\u70ba 4.64\uff083.14 + 1.5\uff09\u3002<\/p>\n
\u540c\u6a23\u5730\uff0cRedis \u4e5f\u652f\u6301\u6d6e\u9ede\u6578\u7684\u6e1b\u6cd5\u64cd\u4f5c\u3002\u96d6\u7136 Redis \u6c92\u6709\u76f4\u63a5\u7684\u6e1b\u6cd5\u547d\u4ee4\uff0c\u4f46\u6211\u5011\u53ef\u4ee5\u901a\u904e\u5c07\u8ca0\u6578\u52a0\u5230\u539f\u6578\u4e0a\u4f86\u5be6\u73fe\u6e1b\u6cd5\u3002\u4ee5\u4e0b\u662f\u6e1b\u6cd5\u64cd\u4f5c\u7684\u793a\u4f8b\uff1a<\/p>\n
INCRBYFLOAT myfloat -2.0<\/code><\/pre>\n
\u57f7\u884c\u9019\u689d\u547d\u4ee4\u5f8c\uff0cmyfloat<\/code> \u7684\u503c\u5c07\u8b8a\u70ba 2.64\uff084.64 – 2.0\uff09\u3002<\/p>\n
\u793a\u4f8b\u4ee3\u78bc<\/h2>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u793a\u4f8b\u4ee3\u78bc\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5728 Redis \u4e2d\u9032\u884c\u6d6e\u9ede\u904b\u7b97\u7684\u52a0\u6e1b\u64cd\u4f5c\uff1a<\/p>\n
\n# \u9023\u63a5\u5230 Redis\nimport redis\n\n# \u5275\u5efa Redis \u5ba2\u6236\u7aef\nclient = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u5b58\u5132\u6d6e\u9ede\u6578\nclient.set('myfloat', 3.14)\n\n# \u52a0\u6cd5\u64cd\u4f5c\nclient.incrbyfloat('myfloat', 1.5)\nprint(client.get('myfloat'))  # \u8f38\u51fa: 4.64\n\n# \u6e1b\u6cd5\u64cd\u4f5c\nclient.incrbyfloat('myfloat', -2.0)\nprint(client.get('myfloat'))  # \u8f38\u51fa: 2.64\n<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
Redis \u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u9ad8\u6548\u7684\u65b9\u5f0f\u4f86\u9032\u884c\u6d6e\u9ede\u904b\u7b97\u7684\u52a0\u6e1b\u64cd\u4f5c\u3002\u901a\u904e\u4f7f\u7528 INCRBYFLOAT<\/code> \u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5c0d\u6d6e\u9ede\u6578\u9032\u884c\u52a0\u6e1b\u8a08\u7b97\uff0c\u9019\u5728\u8a31\u591a\u61c9\u7528\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\u3002\u7121\u8ad6\u662f\u8a08\u7b97\u7d71\u8a08\u6578\u64da\u9084\u662f\u8655\u7406\u5be6\u6642\u6578\u64da\uff0cRedis \u90fd\u80fd\u5920\u63d0\u4f9b\u5feb\u901f\u7684\u97ff\u61c9\u548c\u9ad8\u6548\u7684\u6027\u80fd\u3002<\/p>\n
\u5982\u679c\u60a8\u5c0d\u65bc \u9999\u6e2f VPS<\/a> \u670d\u52d9\u6709\u8208\u8da3\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u89e3\u6c7a\u65b9\u6848\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\uff0c\u7121\u8ad6\u662f\u6578\u64da\u5b58\u5132\u9084\u662f\u61c9\u7528\u90e8\u7f72\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe\u6d6e\u9ede\u904b\u7b97\u7684\u52a0\u6e1b\u64cd\u4f5c\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u7c21\u5316\u8a08\u7b97\u904e\u7a0b\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-128523","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128523","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=128523"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128523\/revisions"}],"predecessor-version":[{"id":128524,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128523\/revisions\/128524"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}