{"id":201145,"date":"2025-05-10T08:01:32","date_gmt":"2025-05-10T00:01:32","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201145\/"},"modified":"2025-05-10T08:01:32","modified_gmt":"2025-05-10T00:01:32","slug":"%e8%af%a6%e8%a7%a3redis%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e5%ae%9e%e7%8e%b0%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201145\/","title":{"rendered":"\u8be6\u89e3Redis\u6570\u636e\u7c7b\u578b\u5b9e\u73b0\u539f\u7406"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u8be6\u89e3Redis\u6570\u636e\u7c7b\u578b\u5b9e\u73b0\u539f\u7406<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300a\u8be6\u89e3Redis\u6570\u636e\u7c7b\u578b\u5b9e\u73b0\u539f\u7406\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~<\/p>\n<h2>1. \u5bf9\u8c61\u7684\u7c7b\u578b\u4e0e\u7f16\u7801<\/h2>\n<p>\u3000\u3000Redis\u4f7f\u7528\u524d\u9762\u8bf4\u7684\u4e94\u5927\u6570\u636e\u7c7b\u578b\u6765\u8868\u793a\u952e\u548c\u503c\uff0c\u6bcf\u6b21\u5728Redis\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u4e00\u4e2a\u952e\u503c\u5bf9\u65f6\uff0c\u81f3\u5c11\u4f1a\u521b\u5efa\u4e24\u4e2a\u5bf9\u8c61\uff0c\u4e00\u4e2a\u662f\u952e\u5bf9\u8c61\uff0c\u4e00\u4e2a\u662f\u503c\u5bf9\u8c61\uff0c\u800cRedis\u4e2d\u7684\u6bcf\u4e2a\u5bf9\u8c61\u90fd\u662f\u7531 redisObject \u7ed3\u6784\u6765\u8868\u793a\uff1a<\/p>\n<pre>\ntypedef struct redisObject{\n     \/\/\u7c7b\u578b\n     unsigned type:4;\n     \/\/\u7f16\u7801\n     unsigned encoding:4;\n     \/\/\u6307\u5411\u5e95\u5c42\u6570\u636e\u7ed3\u6784\u7684\u6307\u9488\n     void *ptr;\n     \/\/\u5f15\u7528\u8ba1\u6570\n     int refcount;\n     \/\/\u8bb0\u5f55\u6700\u540e\u4e00\u6b21\u88ab\u7a0b\u5e8f\u8bbf\u95ee\u7684\u65f6\u95f4\n     unsigned lru:22;\n \n}robj<\/pre>\n<h3>\u2460 type\u5c5e\u6027<\/h3>\n<p>\u3000\u3000\u5bf9\u8c61\u7684type\u5c5e\u6027\u8bb0\u5f55\u4e86\u5bf9\u8c61\u7684\u7c7b\u578b\uff0c\u8fd9\u4e2a\u7c7b\u578b\u5c31\u662f\u524d\u9762\u8bb2\u7684\u4e94\u5927\u6570\u636e\u7c7b\u578b\uff1a<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238362663ae8c8ac10f3.png\" class=\"aligncenter\"><\/p>\n<p>\u3000\u3000\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u547d\u4ee4\u6765\u5224\u65ad\u5bf9\u8c61\u7c7b\u578b\uff1a<\/p>\n<pre>\ntype key<\/pre>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238362763ae8c8b3c533.png\" class=\"aligncenter\"><\/p>\n<p style=\"text-align: left\">\u3000\u3000\u6ce8\u610f\uff1a\u5728Redis\u4e2d\uff0c\u952e\u603b\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\u5bf9\u8c61\uff0c\u800c\u503c\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u5bf9\u8c61\uff0c\u6240\u4ee5\u6211\u4eec\u901a\u5e38\u8bf4\u7684\u952e\u4e3a\u5b57\u7b26\u4e32\u952e\uff0c\u8868\u793a\u7684\u662f\u8fd9\u4e2a\u952e\u5bf9\u5e94\u7684\u503c\u4e3a\u5b57\u7b26\u4e32\u5bf9\u8c61\uff0c\u6211\u4eec\u8bf4\u4e00\u4e2a\u952e\u4e3a\u96c6\u5408\u952e\u65f6\uff0c\u8868\u793a\u7684\u662f\u8fd9\u4e2a\u952e\u5bf9\u5e94\u7684\u503c\u4e3a\u96c6\u5408\u5bf9\u8c61\u3002<\/p>\n<h3>\u2461 encoding \u5c5e\u6027\u548c *prt \u6307\u9488<\/h3>\n<p>\u3000\u3000\u5bf9\u8c61\u7684 prt \u6307\u9488\u6307\u5411\u5bf9\u8c61\u5e95\u5c42\u7684\u6570\u636e\u7ed3\u6784\uff0c\u800c\u6570\u636e\u7ed3\u6784\u7531 encoding \u5c5e\u6027\u6765\u51b3\u5b9a\u3002<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238362863ae8c8c314cf.png\" class=\"aligncenter\"><\/p>\n<p>\u3000\u3000\u800c\u6bcf\u79cd\u7c7b\u578b\u7684\u5bf9\u8c61\u90fd\u81f3\u5c11\u4f7f\u7528\u4e86\u4e24\u79cd\u4e0d\u540c\u7684\u7f16\u7801\uff1a<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238362863ae8c8ca5ed1.png\" class=\"aligncenter\"><\/p>\n<p>\u3000\u3000\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u547d\u4ee4\u67e5\u770b\u503c\u5bf9\u8c61\u7684\u7f16\u7801\uff1a<\/p>\n<pre>\nOBJECT ENCODING  key<\/pre>\n<p>\u3000\u3000\u6bd4\u5982 string \u7c7b\u578b\uff1a<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238362963ae8c8d33cbb.png\" class=\"aligncenter\"><\/p>\n<h2>2. \u5b57\u7b26\u4e32\u5bf9\u8c61<\/h2>\n<p>\u3000\u3000\u5b57\u7b26\u4e32\u662fRedis\u6700\u57fa\u672c\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4e0d\u4ec5\u6240\u6709key\u90fd\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\uff0c\u5176\u5b83\u51e0\u79cd\u6570\u636e\u7c7b\u578b\u6784\u6210\u7684\u5143\u7d20\u4e5f\u662f\u5b57\u7b26\u4e32\u3002\u6ce8\u610f\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u4e0d\u80fd\u8d85\u8fc7512M\u3002<\/p>\n<h3>\u2460 \u7f16\u7801<\/h3>\n<p>\u3000\u3000\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u7f16\u7801\u53ef\u4ee5\u662fint\uff0craw\u6216\u8005embstr\u3002<\/p>\n<p>\u3000\u30001\u3001int \u7f16\u7801\uff1a\u4fdd\u5b58\u7684\u662f\u53ef\u4ee5\u7528 long \u7c7b\u578b\u8868\u793a\u7684\u6574\u6570\u503c\u3002<\/p>\n<p>\u3000\u30002\u3001raw \u7f16\u7801\uff1a\u4fdd\u5b58\u957f\u5ea6\u5927\u4e8e44\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<p>\u3000\u30003\u3001embstr \u7f16\u7801\uff1a\u4fdd\u5b58\u957f\u5ea6\u5c0f\u4e8e44\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u3002\u3001<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363063ae8c8ecdbe0.png\" class=\"aligncenter\"><\/p>\n<p>\u3000\u3000\u7531\u4e0a\u53ef\u4ee5\u770b\u51fa\uff0cint \u7f16\u7801\u662f\u7528\u6765\u4fdd\u5b58\u6574\u6570\u503c\uff0craw\u7f16\u7801\u662f\u7528\u6765\u4fdd\u5b58\u957f\u5b57\u7b26\u4e32\uff0c\u800cembstr\u662f\u7528\u6765\u4fdd\u5b58\u77ed\u5b57\u7b26\u4e32\u3002\u5176\u5b9e embstr \u7f16\u7801\u662f\u4e13\u95e8\u7528\u6765\u4fdd\u5b58\u77ed\u5b57\u7b26\u4e32\u7684\u4e00\u79cd\u4f18\u5316\u7f16\u7801\uff0craw \u548c embstr \u7684\u533a\u522b\uff1a\u3001<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363163ae8c8f51e69.png\" class=\"aligncenter\"><\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363163ae8c8f9ab74.png\" class=\"aligncenter\"><\/p>\n<p>\u3000\u3000embstr\u4e0eraw\u90fd\u4f7f\u7528redisObject\u548csds\u4fdd\u5b58\u6570\u636e\uff0c\u533a\u522b\u5728\u4e8e\uff0cembstr\u7684\u4f7f\u7528\u53ea\u5206\u914d\u4e00\u6b21\u5185\u5b58\u7a7a\u95f4\uff08\u56e0\u6b64redisObject\u548csds\u662f\u8fde\u7eed\u7684\uff09\uff0c\u800craw\u9700\u8981\u5206\u914d\u4e24\u6b21\u5185\u5b58\u7a7a\u95f4\uff08\u5206\u522b\u4e3aredisObject\u548csds\u5206\u914d\u7a7a\u95f4\uff09\u3002\u56e0\u6b64\u4e0eraw\u76f8\u6bd4\uff0cembstr\u7684\u597d\u5904\u5728\u4e8e\u521b\u5efa\u65f6\u5c11\u5206\u914d\u4e00\u6b21\u7a7a\u95f4\uff0c\u5220\u9664\u65f6\u5c11\u91ca\u653e\u4e00\u6b21\u7a7a\u95f4\uff0c\u4ee5\u53ca\u5bf9\u8c61\u7684\u6240\u6709\u6570\u636e\u8fde\u5728\u4e00\u8d77\uff0c\u5bfb\u627e\u65b9\u4fbf\u3002\u800cembstr\u7684\u574f\u5904\u4e5f\u5f88\u660e\u663e\uff0c\u5982\u679c\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u589e\u52a0\u9700\u8981\u91cd\u65b0\u5206\u914d\u5185\u5b58\u65f6\uff0c\u6574\u4e2aredisObject\u548csds\u90fd\u9700\u8981\u91cd\u65b0\u5206\u914d\u7a7a\u95f4\uff0c\u56e0\u6b64redis\u4e2d\u7684embstr\u5b9e\u73b0\u4e3a\u53ea\u8bfb\u3002<\/p>\n<p>\u3000\u3000<strong>ps\uff1aRedis\u4e2d\u5bf9\u4e8e\u6d6e\u70b9\u6570\u7c7b\u578b\u4e5f\u662f\u4f5c\u4e3a\u5b57\u7b26\u4e32\u4fdd\u5b58\u7684\uff0c\u5728\u9700\u8981\u7684\u65f6\u5019\u518d\u5c06\u5176\u8f6c\u6362\u6210\u6d6e\u70b9\u6570\u7c7b\u578b\u3002<\/strong><\/p>\n<h3>\u2461 \u7f16\u7801\u7684\u8f6c\u6362<\/h3>\n<p>\u3000\u3000\u5f53 int \u7f16\u7801\u4fdd\u5b58\u7684\u503c\u4e0d\u518d\u662f\u6574\u6570\uff0c\u6216\u5927\u5c0f\u8d85\u8fc7\u4e86long\u7684\u8303\u56f4\u65f6\uff0c\u81ea\u52a8\u8f6c\u5316\u4e3araw\u3002<\/p>\n<p>\u3000\u3000\u5bf9\u4e8e embstr \u7f16\u7801\uff0c\u7531\u4e8e Redis \u6ca1\u6709\u5bf9\u5176\u7f16\u5199\u4efb\u4f55\u7684\u4fee\u6539\u7a0b\u5e8f\uff08embstr \u662f\u53ea\u8bfb\u7684\uff09\uff0c\u5728\u5bf9embstr\u5bf9\u8c61\u8fdb\u884c\u4fee\u6539\u65f6\uff0c\u90fd\u4f1a\u5148\u8f6c\u5316\u4e3araw\u518d\u8fdb\u884c\u4fee\u6539\uff0c\u56e0\u6b64\uff0c\u53ea\u8981\u662f\u4fee\u6539embstr\u5bf9\u8c61\uff0c\u4fee\u6539\u540e\u7684\u5bf9\u8c61\u4e00\u5b9a\u662fraw\u7684\uff0c\u65e0\u8bba\u662f\u5426\u8fbe\u5230\u4e8644\u4e2a\u5b57\u8282\u3002<\/p>\n<h2>3. \u5217\u8868\u5bf9\u8c61<\/h2>\n<p>\u3000\u3000list \u5217\u8868\uff0c\u5b83\u662f\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u5217\u8868\uff0c\u6309\u7167\u63d2\u5165\u987a\u5e8f\u6392\u5e8f\uff0c\u4f60\u53ef\u4ee5\u6dfb\u52a0\u4e00\u4e2a\u5143\u7d20\u5230\u5217\u8868\u7684\u5934\u90e8\uff08\u5de6\u8fb9\uff09\u6216\u8005\u5c3e\u90e8\uff08\u53f3\u8fb9\uff09\uff0c\u5b83\u7684\u5e95\u5c42\u5b9e\u9645\u4e0a\u662f\u4e2a\u94fe\u8868\u7ed3\u6784\u3002<\/p>\n<h3>\u2460 \u7f16\u7801<\/h3>\n<p>\u3000\u3000\u5217\u8868\u5bf9\u8c61\u7684\u7f16\u7801\u53ef\u4ee5\u662f ziplist(\u538b\u7f29\u5217\u8868) \u548c linkedlist(\u53cc\u7aef\u94fe\u8868)\u3002<\/p>\n<p>\u3000\u3000\u6bd4\u5982\u6211\u4eec\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u521b\u5efa\u4e00\u4e2a key = \u2018numbers&#8217;\uff0cvalue = \u20181 three 5&#8242; \u7684\u4e09\u4e2a\u503c\u7684\u5217\u8868\u3002<\/p>\n<pre>\nrpush numbers 1 \"three\" 5<\/pre>\n<p>\u3000\u3000ziplist \u7f16\u7801\u8868\u793a\u5982\u4e0b<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363263ae8c9007eef.png\" class=\"aligncenter\"><\/p>\n<p>\u3000\u3000linkedlist\u8868\u793a\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363263ae8c9065656.png\" class=\"aligncenter\"><\/p>\n<h3>\u2461 \u7f16\u7801\u8f6c\u6362<\/h3>\n<p>\u3000\u3000\u5f53\u540c\u65f6\u6ee1\u8db3\u4e0b\u9762\u4e24\u4e2a\u6761\u4ef6\u65f6\uff0c\u4f7f\u7528ziplist\uff08\u538b\u7f29\u5217\u8868\uff09\u7f16\u7801\uff1a<\/p>\n<p>\u3000\u30001\u3001\u5217\u8868\u4fdd\u5b58\u5143\u7d20\u4e2a\u6570\u5c0f\u4e8e512\u4e2a<\/p>\n<p>\u3000\u30002\u3001\u6bcf\u4e2a\u5143\u7d20\u957f\u5ea6\u5c0f\u4e8e64\u5b57\u8282<\/p>\n<p>\u3000\u3000\u4e0d\u80fd\u6ee1\u8db3\u8fd9\u4e24\u4e2a\u6761\u4ef6\u7684\u65f6\u5019\u4f7f\u7528 linkedlist \u7f16\u7801\u3002<\/p>\n<p>\u3000\u3000\u4e0a\u9762\u4e24\u4e2a\u6761\u4ef6\u53ef\u4ee5\u5728redis.conf \u914d\u7f6e\u6587\u4ef6\u4e2d\u7684 list-max-ziplist-value\u9009\u9879\u548c list-max-ziplist-entries \u9009\u9879\u8fdb\u884c\u914d\u7f6e\u3002<\/p>\n<h2>4. \u54c8\u5e0c\u5bf9\u8c61<\/h2>\n<p>\u3000\u3000\u54c8\u5e0c\u5bf9\u8c61\u7684\u952e\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\u7c7b\u578b\uff0c\u503c\u662f\u4e00\u4e2a\u952e\u503c\u5bf9\u96c6\u5408\u3002<\/p>\n<h3>\u2460 \u7f16\u7801<\/h3>\n<p>\u3000\u3000\u54c8\u5e0c\u5bf9\u8c61\u7684\u7f16\u7801\u53ef\u4ee5\u662f ziplist \u6216\u8005 hashtable\u3002<\/p>\n<p>\u3000\u3000\u5f53\u4f7f\u7528ziplist\uff0c\u4e5f\u5c31\u662f\u538b\u7f29\u5217\u8868\u4f5c\u4e3a\u5e95\u5c42\u5b9e\u73b0\u65f6\uff0c\u65b0\u589e\u7684\u952e\u503c\u5bf9\u662f\u4fdd\u5b58\u5230\u538b\u7f29\u5217\u8868\u7684\u8868\u5c3e\u3002\u6bd4\u5982\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>\nhset profile name \"Tom\"\nhset profile age 25\nhset profile career \"Programmer\"<\/pre>\n<p>\u3000\u3000\u5982\u679c\u4f7f\u7528ziplist\uff0cprofile \u5b58\u50a8\u5982\u4e0b\uff1a<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363263ae8c90c5b69.png\" class=\"aligncenter\"><\/p>\n<p>\u3000\u3000\u5f53\u4f7f\u7528 hashtable \u7f16\u7801\u65f6\uff0c\u4e0a\u9762\u547d\u4ee4\u5b58\u50a8\u5982\u4e0b\uff1a<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363363ae8c9131a2d.png\" class=\"aligncenter\"><\/p>\n<p>\u3000\u3000hashtable \u7f16\u7801\u7684\u54c8\u5e0c\u8868\u5bf9\u8c61\u5e95\u5c42\u4f7f\u7528\u5b57\u5178\u6570\u636e\u7ed3\u6784\uff0c\u54c8\u5e0c\u5bf9\u8c61\u4e2d\u7684\u6bcf\u4e2a\u952e\u503c\u5bf9\u90fd\u4f7f\u7528\u4e00\u4e2a\u5b57\u5178\u952e\u503c\u5bf9\u3002<\/p>\n<p>\u3000\u3000\u5728\u524d\u9762\u4ecb\u7ecd\u538b\u7f29\u5217\u8868\u65f6\uff0c\u6211\u4eec\u4ecb\u7ecd\u8fc7\u538b\u7f29\u5217\u8868\u662fRedis\u4e3a\u4e86\u8282\u7701\u5185\u5b58\u800c\u5f00\u53d1\u7684\uff0c\u662f\u7531\u4e00\u7cfb\u5217\u7279\u6b8a\u7f16\u7801\u7684\u8fde\u7eed\u5185\u5b58\u5757\u7ec4\u6210\u7684\u987a\u5e8f\u578b\u6570\u636e\u7ed3\u6784\uff0c\u76f8\u5bf9\u4e8e\u5b57\u5178\u6570\u636e\u7ed3\u6784\uff0c\u538b\u7f29\u5217\u8868\u7528\u4e8e\u5143\u7d20\u4e2a\u6570\u5c11\u3001\u5143\u7d20\u957f\u5ea6\u5c0f\u7684\u573a\u666f\u3002\u5176\u4f18\u52bf\u5728\u4e8e\u96c6\u4e2d\u5b58\u50a8\uff0c\u8282\u7701\u7a7a\u95f4\u3002<\/p>\n<h3>\u2461 \u7f16\u7801\u8f6c\u6362<\/h3>\n<p>\u3000\u3000\u548c\u4e0a\u9762\u5217\u8868\u5bf9\u8c61\u4f7f\u7528 ziplist \u7f16\u7801\u4e00\u6837\uff0c\u5f53\u540c\u65f6\u6ee1\u8db3\u4e0b\u9762\u4e24\u4e2a\u6761\u4ef6\u65f6\uff0c\u4f7f\u7528ziplist\uff08\u538b\u7f29\u5217\u8868\uff09\u7f16\u7801\uff1a<\/p>\n<p>\u3000\u30001\u3001\u5217\u8868\u4fdd\u5b58\u5143\u7d20\u4e2a\u6570\u5c0f\u4e8e512\u4e2a<\/p>\n<p>\u3000\u30002\u3001\u6bcf\u4e2a\u5143\u7d20\u957f\u5ea6\u5c0f\u4e8e64\u5b57\u8282<\/p>\n<p>\u3000\u3000\u4e0d\u80fd\u6ee1\u8db3\u8fd9\u4e24\u4e2a\u6761\u4ef6\u7684\u65f6\u5019\u4f7f\u7528 hashtable \u7f16\u7801\u3002\u7b2c\u4e00\u4e2a\u6761\u4ef6\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684 set-max-intset-entries \u8fdb\u884c\u4fee\u6539\u3002<\/p>\n<h2>5. \u96c6\u5408\u5bf9\u8c61<\/h2>\n<p>\u3000\u96c6\u5408\u5bf9\u8c61 set \u662f string \u7c7b\u578b\uff08\u6574\u6570\u4e5f\u4f1a\u8f6c\u6362\u6210string\u7c7b\u578b\u8fdb\u884c\u5b58\u50a8\uff09\u7684\u65e0\u5e8f\u96c6\u5408\u3002\u6ce8\u610f\u96c6\u5408\u548c\u5217\u8868\u7684\u533a\u522b\uff1a\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u662f\u65e0\u5e8f\u7684\uff0c\u56e0\u6b64\u4e0d\u80fd\u901a\u8fc7\u7d22\u5f15\u6765\u64cd\u4f5c\u5143\u7d20\uff1b\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u4e0d\u80fd\u6709\u91cd\u590d\u3002<\/p>\n<h3>\u2460 \u7f16\u7801<\/h3>\n<p>\u3000\u3000\u96c6\u5408\u5bf9\u8c61\u7684\u7f16\u7801\u53ef\u4ee5\u662f intset \u6216\u8005 hashtable\u3002<\/p>\n<p>\u3000\u3000intset \u7f16\u7801\u7684\u96c6\u5408\u5bf9\u8c61\u4f7f\u7528\u6574\u6570\u96c6\u5408\u4f5c\u4e3a\u5e95\u5c42\u5b9e\u73b0\uff0c\u96c6\u5408\u5bf9\u8c61\u5305\u542b\u7684\u6240\u6709\u5143\u7d20\u90fd\u88ab\u4fdd\u5b58\u5728\u6574\u6570\u96c6\u5408\u4e2d\u3002<\/p>\n<p>\u3000\u3000hashtable \u7f16\u7801\u7684\u96c6\u5408\u5bf9\u8c61\u4f7f\u7528 \u5b57\u5178\u4f5c\u4e3a\u5e95\u5c42\u5b9e\u73b0\uff0c\u5b57\u5178\u7684\u6bcf\u4e2a\u952e\u90fd\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\u5bf9\u8c61\uff0c\u8fd9\u91cc\u7684\u6bcf\u4e2a\u5b57\u7b26\u4e32\u5bf9\u8c61\u5c31\u662f\u4e00\u4e2a\u96c6\u5408\u4e2d\u7684\u5143\u7d20\uff0c\u800c\u5b57\u5178\u7684\u503c\u5219\u5168\u90e8\u8bbe\u7f6e\u4e3a null\u3002\u8fd9\u91cc\u53ef\u4ee5\u7c7b\u6bd4Java\u96c6\u5408\u4e2dHashSet \u96c6\u5408\u7684\u5b9e\u73b0\uff0cHashSet \u96c6\u5408\u662f\u7531 HashMap \u6765\u5b9e\u73b0\u7684\uff0c\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u5c31\u662f HashMap \u7684key\uff0c\u800c HashMap \u7684\u503c\u90fd\u8bbe\u4e3a null\u3002<\/p>\n<pre>\nSADD numbers 1 3 5<\/pre>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363363ae8c91c5b37.png\" class=\"aligncenter\"><\/p>\n<pre>\nSADD Dfruits \"apple\" \"banana\" \"cherry\"<\/pre>\n<p style=\"text-align: left\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363463ae8c9230d3b.png\" class=\"aligncenter\"><\/p>\n<h3>\u2461 \u7f16\u7801\u8f6c\u6362<\/h3>\n<p>\u3000\u3000\u5f53\u96c6\u5408\u540c\u65f6\u6ee1\u8db3\u4ee5\u4e0b\u4e24\u4e2a\u6761\u4ef6\u65f6\uff0c\u4f7f\u7528 intset \u7f16\u7801\uff1a<\/p>\n<p>\u3000\u30001\u3001\u96c6\u5408\u5bf9\u8c61\u4e2d\u6240\u6709\u5143\u7d20\u90fd\u662f\u6574\u6570<\/p>\n<p>\u3000\u30002\u3001\u96c6\u5408\u5bf9\u8c61\u6240\u6709\u5143\u7d20\u6570\u91cf\u4e0d\u8d85\u8fc7512<\/p>\n<p>\u3000\u3000\u4e0d\u80fd\u6ee1\u8db3\u8fd9\u4e24\u4e2a\u6761\u4ef6\u7684\u5c31\u4f7f\u7528 hashtable \u7f16\u7801\u3002\u7b2c\u4e8c\u4e2a\u6761\u4ef6\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u7684 set-max-intset-entries \u8fdb\u884c\u914d\u7f6e\u3002<\/p>\n<h2>6. \u6709\u5e8f\u96c6\u5408\u5bf9\u8c61<\/h2>\n<p>\u3000\u3000\u548c\u4e0a\u9762\u7684\u96c6\u5408\u5bf9\u8c61\u76f8\u6bd4\uff0c\u6709\u5e8f\u96c6\u5408\u5bf9\u8c61\u662f\u6709\u5e8f\u7684\u3002\u4e0e\u5217\u8868\u4f7f\u7528\u7d22\u5f15\u4e0b\u6807\u4f5c\u4e3a\u6392\u5e8f\u4f9d\u636e\u4e0d\u540c\uff0c\u6709\u5e8f\u96c6\u5408\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8bbe\u7f6e\u4e00\u4e2a\u5206\u6570\uff08score\uff09\u4f5c\u4e3a\u6392\u5e8f\u4f9d\u636e\u3002<\/p>\n<h3>\u2460 \u7f16\u7801<\/h3>\n<p>\u3000\u3000\u6709\u5e8f\u96c6\u5408\u7684\u7f16\u7801\u53ef\u4ee5\u662f ziplist \u6216\u8005 skiplist\u3002<\/p>\n<p>\u3000\u3000ziplist \u7f16\u7801\u7684\u6709\u5e8f\u96c6\u5408\u5bf9\u8c61\u4f7f\u7528\u538b\u7f29\u5217\u8868\u4f5c\u4e3a\u5e95\u5c42\u5b9e\u73b0\uff0c\u6bcf\u4e2a\u96c6\u5408\u5143\u7d20\u4f7f\u7528\u4e24\u4e2a\u7d27\u6328\u5728\u4e00\u8d77\u7684\u538b\u7f29\u5217\u8868\u8282\u70b9\u6765\u4fdd\u5b58\uff0c\u7b2c\u4e00\u4e2a\u8282\u70b9\u4fdd\u5b58\u5143\u7d20\u7684\u6210\u5458\uff0c\u7b2c\u4e8c\u4e2a\u8282\u70b9\u4fdd\u5b58\u5143\u7d20\u7684\u5206\u503c\u3002\u5e76\u4e14\u538b\u7f29\u5217\u8868\u5185\u7684\u96c6\u5408\u5143\u7d20\u6309\u5206\u503c\u4ece\u5c0f\u5230\u5927\u7684\u987a\u5e8f\u8fdb\u884c\u6392\u5217\uff0c\u5c0f\u7684\u653e\u7f6e\u5728\u9760\u8fd1\u8868\u5934\u7684\u4f4d\u7f6e\uff0c\u5927\u7684\u653e\u7f6e\u5728\u9760\u8fd1\u8868\u5c3e\u7684\u4f4d\u7f6e\u3002<\/p>\n<pre>\nZADD price 8.5 apple 5.0 banana 6.0 cherry<\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363463ae8c92a0cbf.png\" class=\"aligncenter\"><\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167238363563ae8c932045e.png\" class=\"aligncenter\"><\/p>\n<p>\u3000skiplist \u7f16\u7801\u7684\u6709\u5e8f\u96c6\u5408\u5bf9\u8c61\u4f7f\u7528 zet \u7ed3\u6784\u4f5c\u4e3a\u5e95\u5c42\u5b9e\u73b0\uff0c\u4e00\u4e2a zset \u7ed3\u6784\u540c\u65f6\u5305\u542b\u4e00\u4e2a\u5b57\u5178\u548c\u4e00\u4e2a\u8df3\u8dc3\u8868\uff1a<\/p>\n<pre>\ntypedef struct zset{\n     \/\/\u8df3\u8dc3\u8868\n     zskiplist *zsl;\n     \/\/\u5b57\u5178\n     dict *dice;\n} zset;<\/pre>\n<p>\u3000\u3000\u5b57\u5178\u7684\u952e\u4fdd\u5b58\u5143\u7d20\u7684\u503c\uff0c\u5b57\u5178\u7684\u503c\u5219\u4fdd\u5b58\u5143\u7d20\u7684\u5206\u503c\uff1b\u8df3\u8dc3\u8868\u8282\u70b9\u7684 object \u5c5e\u6027\u4fdd\u5b58\u5143\u7d20\u7684\u6210\u5458\uff0c\u8df3\u8dc3\u8868\u8282\u70b9\u7684 score \u5c5e\u6027\u4fdd\u5b58\u5143\u7d20\u7684\u5206\u503c\u3002<\/p>\n<p>\u3000\u3000\u8fd9\u4e24\u79cd\u6570\u636e\u7ed3\u6784\u4f1a\u901a\u8fc7\u6307\u9488\u6765\u5171\u4eab\u76f8\u540c\u5143\u7d20\u7684\u6210\u5458\u548c\u5206\u503c\uff0c\u6240\u4ee5\u4e0d\u4f1a\u4ea7\u751f\u91cd\u590d\u6210\u5458\u548c\u5206\u503c\uff0c\u9020\u6210\u5185\u5b58\u7684\u6d6a\u8d39\u3002<\/p>\n<p>\u3000\u3000\u8bf4\u660e\uff1a\u5176\u5b9e\u6709\u5e8f\u96c6\u5408\u5355\u72ec\u4f7f\u7528\u5b57\u5178\u6216\u8df3\u8dc3\u8868\u5176\u4e2d\u4e00\u79cd\u6570\u636e\u7ed3\u6784\u90fd\u53ef\u4ee5\u5b9e\u73b0\uff0c\u4f46\u662f\u8fd9\u91cc\u4f7f\u7528\u4e24\u79cd\u6570\u636e\u7ed3\u6784\u7ec4\u5408\u8d77\u6765\uff0c\u539f\u56e0\u662f\u5047\u5982\u6211\u4eec\u5355\u72ec\u4f7f\u7528 \u5b57\u5178\uff0c\u867d\u7136\u80fd\u4ee5 O(1) \u7684\u65f6\u95f4\u590d\u6742\u5ea6\u67e5\u627e\u6210\u5458\u7684\u5206\u503c\uff0c\u4f46\u662f\u56e0\u4e3a\u5b57\u5178\u662f\u4ee5\u65e0\u5e8f\u7684\u65b9\u5f0f\u6765\u4fdd\u5b58\u96c6\u5408\u5143\u7d20\uff0c\u6240\u4ee5\u6bcf\u6b21\u8fdb\u884c\u8303\u56f4\u64cd\u4f5c\u7684\u65f6\u5019\u90fd\u8981\u8fdb\u884c\u6392\u5e8f\uff1b\u5047\u5982\u6211\u4eec\u5355\u72ec\u4f7f\u7528\u8df3\u8dc3\u8868\u6765\u5b9e\u73b0\uff0c\u867d\u7136\u80fd\u6267\u884c\u8303\u56f4\u64cd\u4f5c\uff0c\u4f46\u662f\u67e5\u627e\u64cd\u4f5c\u6709 O(1)\u7684\u590d\u6742\u5ea6\u53d8\u4e3a\u4e86O(logN)\u3002\u56e0\u6b64Redis\u4f7f\u7528\u4e86\u4e24\u79cd\u6570\u636e\u7ed3\u6784\u6765\u5171\u540c\u5b9e\u73b0\u6709\u5e8f\u96c6\u5408\u3002<\/p>\n<h3>\u2461 \u7f16\u7801\u8f6c\u6362<\/h3>\n<p>\u3000\u3000\u5f53\u6709\u5e8f\u96c6\u5408\u5bf9\u8c61\u540c\u65f6\u6ee1\u8db3\u4ee5\u4e0b\u4e24\u4e2a\u6761\u4ef6\u65f6\uff0c\u5bf9\u8c61\u4f7f\u7528 ziplist \u7f16\u7801\uff1a<\/p>\n<p>\u3000\u30001\u3001\u4fdd\u5b58\u7684\u5143\u7d20\u6570\u91cf\u5c0f\u4e8e128\uff1b<\/p>\n<p>\u3000\u30002\u3001\u4fdd\u5b58\u7684\u6240\u6709\u5143\u7d20\u957f\u5ea6\u90fd\u5c0f\u4e8e64\u5b57\u8282\u3002<\/p>\n<p>\u3000\u3000\u4e0d\u80fd\u6ee1\u8db3\u4e0a\u9762\u4e24\u4e2a\u6761\u4ef6\u7684\u4f7f\u7528 skiplist \u7f16\u7801\u3002\u4ee5\u4e0a\u4e24\u4e2a\u6761\u4ef6\u4e5f\u53ef\u4ee5\u901a\u8fc7Redis\u914d\u7f6e\u6587\u4ef6zset-max-ziplist-entries \u9009\u9879\u548c zset-max-ziplist-value \u8fdb\u884c\u4fee\u6539\u3002<\/p>\n<h2>7. \u4e94\u5927\u6570\u636e\u7c7b\u578b\u7684\u5e94\u7528\u573a\u666f<\/h2>\n<p>\u3000\u3000\u5bf9\u4e8estring \u6570\u636e\u7c7b\u578b\uff0c\u56e0\u4e3astring \u7c7b\u578b\u662f\u4e8c\u8fdb\u5236\u5b89\u5168\u7684\uff0c\u53ef\u4ee5\u7528\u6765\u5b58\u653e\u56fe\u7247\uff0c\u89c6\u9891\u7b49\u5185\u5bb9\uff0c\u53e6\u5916\u7531\u4e8eRedis\u7684\u9ad8\u6027\u80fd\u8bfb\u5199\u529f\u80fd\uff0c\u800cstring\u7c7b\u578b\u7684value\u4e5f\u53ef\u4ee5\u662f\u6570\u5b57\uff0c\u53ef\u4ee5\u7528\u4f5c\u8ba1\u6570\u5668\uff08INCR,DECR\uff09\uff0c\u6bd4\u5982\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\u7edf\u8ba1\u7cfb\u7edf\u7684\u5728\u7ebf\u4eba\u6570\uff0c\u79d2\u6740\u7b49\u3002<\/p>\n<p>\u3000\u3000\u5bf9\u4e8e hash \u6570\u636e\u7c7b\u578b\uff0cvalue \u5b58\u653e\u7684\u662f\u952e\u503c\u5bf9\uff0c\u6bd4\u5982\u53ef\u4ee5\u505a\u5355\u70b9\u767b\u5f55\u5b58\u653e\u7528\u6237\u4fe1\u606f\u3002<\/p>\n<p>\u3000\u3000\u5bf9\u4e8e list 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