{"id":201527,"date":"2025-05-10T11:11:22","date_gmt":"2025-05-10T03:11:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201527\/"},"modified":"2025-05-10T11:11:22","modified_gmt":"2025-05-10T03:11:22","slug":"%e4%bd%bf%e7%94%a8redis%e5%ae%9e%e7%8e%b0%e5%ae%9e%e6%97%b6%e6%8e%92%e8%a1%8c%e6%a6%9c%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201527\/","title":{"rendered":"\u4f7f\u7528Redis\u5b9e\u73b0\u5b9e\u65f6\u6392\u884c\u699c\u529f\u80fd"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u4f7f\u7528Redis\u5b9e\u73b0\u5b9e\u65f6\u6392\u884c\u699c\u529f\u80fd<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5728\u6570\u636e\u5e93\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u5c31\u6574\u7406\u5206\u4eab\u300a\u4f7f\u7528Redis\u5b9e\u73b0\u5b9e\u65f6\u6392\u884c\u699c\u529f\u80fd\u300b\uff0c\u804a\u804aRedis\u6392\u884c\u699c\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p>\u6e38\u620f\u4e2d\u5b58\u5728\u5404\u79cd\u5404\u6837\u7684\u6392\u884c\u699c\uff0c\u6bd4\u5982\u73a9\u5bb6\u7684\u7b49\u7ea7\u6392\u540d\u3001\u5206\u6570\u6392\u540d\u7b49\u3002\u73a9\u5bb6\u5728\u6392\u884c\u699c\u4e2d\u7684\u540d\u6b21\u662f\u5176\u5b9e\u529b\u7684\u8c61\u5f81\uff0c\u4f4d\u4e8e\u699c\u5355\u524d\u5217\u7684\u73a9\u5bb6\u5728\u865a\u62df\u4e16\u754c\u4e2d\u62e5\u6709\u65e0\u5c1a\u8363\u8000\uff0c\u6240\u4ee5\u540d\u6b21\u4e5f\u5c31\u6210\u4e86\u6838\u5fc3\u73a9\u5bb6\u7684\u8ffd\u6c42\u76ee\u6807\u3002<\/p>\n<p>\u4e00\u4e2a\u5178\u578b\u7684\u6e38\u620f\u6392\u884c\u699c\u5305\u62ec\u4ee5\u4e0b\u5e38\u89c1\u529f\u80fd\uff1a<\/p>\n<p>1. \u80fd\u591f\u8bb0\u5f55\u6bcf\u4e2a\u73a9\u5bb6\u7684\u5206\u6570\uff1b<\/p>\n<p>2. \u80fd\u591f\u5bf9\u73a9\u5bb6\u7684\u5206\u6570\u8fdb\u884c\u66f4\u65b0\uff1b<\/p>\n<p>3. \u80fd\u591f\u67e5\u8be2\u6bcf\u4e2a\u73a9\u5bb6\u7684\u5206\u6570\u548c\u540d\u6b21\uff1b<\/p>\n<p>4. \u80fd\u591f\u6309\u540d\u6b21\u67e5\u8be2\u6392\u540d\u524dN\u540d\u7684\u73a9\u5bb6\uff1b<\/p>\n<p>5. \u80fd\u591f\u67e5\u8be2\u6392\u5728\u6307\u5b9a\u73a9\u5bb6\u524d\u540eM\u540d\u7684\u73a9\u5bb6\u3002<\/p>\n<p>\u66f4\u8fdb\u4e00\u6b65\uff0c\u4e0a\u9762\u7684\u64cd\u4f5c\u90fd\u9700\u8981\u5728\u77ed\u65f6\u95f4\u5185\u5b9e\u65f6\u5b8c\u6210\uff0c\u8fd9\u6837\u624d\u80fd\u6700\u5927\u7a0b\u5ea6\u53d1\u6325\u6392\u884c\u699c\u7684\u6548\u7528\u3002<\/p>\n<p>\u7531\u4e8e\u4e00\u4e2a\u73a9\u5bb6\u540d\u6b21\u4e0a\u5347x\u4f4d\u5c06\u4f1a\u5f15\u8d77x+1\u4f4d\u73a9\u5bb6\u7684\u540d\u6b21\u53d1\u751f\u53d8\u5316\uff08\u5305\u62ec\u8be5\u73a9\u5bb6\uff09\uff0c\u5982\u679c\u91c7\u7528\u4f20\u7edf\u6570\u636e\u5e93\uff08\u6bd4\u5982MySQL\uff09\u6765\u5b9e\u73b0\u6392\u884c\u699c\uff0c\u5f53\u73a9\u5bb6\u4eba\u6570\u8f83\u591a\u65f6\uff0c\u5c06\u4f1a\u5bfc\u81f4\u5bf9\u6570\u636e\u5e93\u7684\u9891\u7e41\u4fee\u6539\uff0c\u6027\u80fd\u5f97\u4e0d\u5230\u6ee1\u8db3\uff0c\u6240\u4ee5\u6211\u4eec\u53ea\u80fd\u53e6\u60f3\u5b83\u6cd5\u3002<\/p>\n<p>Redis\u4f5c\u4e3aNoSQL\u4e2d\u7684\u4e00\u5458\uff0c\u8fd1\u5e74\u6765\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002\u4e0eMemcached\u76f8\u6bd4\uff0cRedis\u62e5\u6709\u66f4\u591a\u7684\u6570\u636e\u7c7b\u578b\u548c\u64cd\u4f5c\u63a5\u53e3\uff0c\u5177\u6709\u66f4\u5927\u7684\u9002\u7528\u8303\u56f4\uff0c\u5176\u4e2d\u7684\u6709\u5e8f\u96c6\u5408\uff08sorted set\uff0c\u4e5f\u79f0\u4e3azset\uff09\u5c31\u975e\u5e38\u9002\u5408\u4e8e\u6392\u884c\u699c\u7684\u6784\u5efa\u3002\u4e0b\u9762\u7b80\u8981\u603b\u7ed3\u4e00\u4e0b\u3002<\/p>\n<h2>## 1\\. Redis\u7684\u5b89\u88c5<\/h2>\n<p>Ubuntu\u4e0b\u5b89\u88c5Redis\u975e\u5e38\u7b80\u5355\uff0c\u6267\u884c\u5982\u4e0b\u547d\u4ee4\u5373\u53ef\uff1a<\/p>\n<blockquote>\n<p>&gt; $ sudo apt-get install redis-server<\/p>\n<\/blockquote>\n<p>\u5b89\u88c5\u5b8c\u6bd5\uff0c\u8fd0\u884c\u547d\u4ee4\u884c\u5ba2\u6237\u7aefredis-cli\u5c31\u53ef\u4ee5\u8bbf\u95ee\u672c\u5730redis\u670d\u52a1\u5668\u3002<\/p>\n<blockquote>\n<p>&gt; $ redis-cli &gt; redis 127.0.0.1:6379&gt;<\/p>\n<\/blockquote>\n<p>\u5982\u679c\u8981\u4f7f\u7528\u6700\u65b0\u7248\u672c\uff0c\u9700\u8981\u5230Redis\u5b98\u7f51\uff08[http:\/\/redis.io](http:\/\/redis.io\/)\uff09\u4e0b\u8f7d\u6700\u65b0\u7684\u4ee3\u7801\u81ea\u884c\u7f16\u8bd1\uff0c\u6b65\u9aa4\u7565\u3002<\/p>\n<h2>## 2\\. ZSet\u7684\u5e38\u7528\u547d\u4ee4<\/h2>\n<p>\u6709\u5e8f\u96c6\u5408\u9996\u5148\u662f\u96c6\u5408\uff0c\u5176\u6210\u5458\uff08member\uff09\u5177\u6709\u552f\u4e00\u6027\uff0c\u5176\u6b21\uff0c\u6bcf\u4e2a\u6210\u5458\u5173\u8054\u4e86\u4e00\u4e2a\u5206\u6570\uff08score\uff09\uff0c\u4f7f\u5f97\u6210\u5458\u53ef\u4ee5\u6309\u7167\u5206\u6570\u6392\u5e8f\u3002\u5173\u4e8e\u6709\u5e8f\u96c6\u5408\u7684\u4ecb\u7ecd\u89c1[http:\/\/redis.io\/topics\/data-types#sorted-sets](http:\/\/redis.io\/topics\/data-types#sorted-sets)\uff0c\u5176\u547d\u4ee4\u89c1[http:\/\/redis.io\/commands#sorted_set](http:\/\/redis.io\/commands#sorted_set)\u3002<\/p>\n<p>\u4e0b\u9762\u4ecb\u7ecd\u51e0\u4e2a\u80fd\u7528\u4e8e\u6392\u884c\u699c\u7684\u547d\u4ee4\u3002<\/p>\n<p>\u5047\u8bbelb\u4e3a\u6392\u884c\u699c\u540d\u79f0\uff0cuser1\u3001user2\u7b49\u4e3a\u73a9\u5bb6\u552f\u4e00\u6807\u8bc6\u3002<\/p>\n<h2>##### 1) zadd\u2014\u2014\u8bbe\u7f6e\u73a9\u5bb6\u5206\u6570<\/h2>\n<p>\u547d\u4ee4\u683c\u5f0f\uff1a***zadd \u6392\u884c\u699c\u540d\u79f0 \u5206\u6570 \u73a9\u5bb6\u6807\u8bc6*** \u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(log(N))<\/p>\n<p>\u4e0b\u9762\u8bbe\u7f6e\u4e864\u4e2a\u73a9\u5bb6\u7684\u5206\u6570\uff0c\u5982\u679c\u73a9\u5bb6\u5206\u6570\u5df2\u7ecf\u5b58\u5728\uff0c\u5219\u4f1a\u8986\u76d6\u4e4b\u524d\u7684\u5206\u6570\u3002<\/p>\n<blockquote>\n<p>&gt; redis 127.0.0.1:6379&gt; zadd lb 89 user1<br \/> &gt; (integer) 1<br \/> &gt; redis 127.0.0.1:6379&gt; zadd lb 95 user2<br \/> &gt; (integer) 1<br \/> &gt; redis 127.0.0.1:6379&gt; zadd lb 95 user3<br \/> &gt; (integer) 1<br \/> &gt; redis 127.0.0.1:6379&gt; zadd lb 90 user4<br \/> &gt; (integer) 1<\/p>\n<\/blockquote>\n<h2>##### 2) zscore\u2014\u2014\u67e5\u770b\u73a9\u5bb6\u5206\u6570<\/h2>\n<p>\u547d\u4ee4\u683c\u5f0f\uff1a***zscore \u6392\u884c\u699c\u540d\u79f0 \u73a9\u5bb6\u6807\u8bc6*** \u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(1)<\/p>\n<p>\u4e0b\u9762\u662f\u67e5\u770buser2\u8fd9\u4e2a\u73a9\u5bb6\u5728lb\u6392\u884c\u699c\u4e2d\u7684\u5206\u6570\u3002<\/p>\n<blockquote>\n<p>&gt; redis 127.0.0.1:6379&gt; zscore lb user2 &gt; \u201c95\u201d<\/p>\n<\/blockquote>\n<h2>##### 3) zrevrange\u2014\u2014\u6309\u540d\u6b21\u67e5\u770b\u6392\u884c\u699c<\/h2>\n<p>\u547d\u4ee4\u683c\u5f0f\uff1a***zrevrange \u6392\u884c\u699c\u540d\u79f0 \u8d77\u59cb\u4f4d\u7f6e \u7ed3\u675f\u4f4d\u7f6e [withscores]*** \u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(log(N)+M)<\/p>\n<p>\u7531\u4e8e\u6392\u884c\u699c\u4e00\u822c\u662f\u6309\u7167\u5206\u6570\u7531\u9ad8\u5230\u4f4e\u6392\u5e8f\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u4f7f\u7528zrevrange\uff0c\u800c\u547d\u4ee4zrange\u662f\u6309\u7167\u5206\u6570\u7531\u4f4e\u5230\u9ad8\u6392\u5e8f\u3002<\/p>\n<p>\u8d77\u59cb\u4f4d\u7f6e\u548c\u7ed3\u675f\u4f4d\u7f6e\u90fd\u662f\u4ee50\u5f00\u59cb\u7684\u7d22\u5f15\uff0c\u4e14\u90fd\u5305\u542b\u5728\u5185\u3002\u5982\u679c\u7ed3\u675f\u4f4d\u7f6e\u4e3a-1\u5219\u67e5\u770b\u8303\u56f4\u4e3a\u6574\u4e2a\u6392\u884c\u699c\u3002<\/p>\n<p>\u5e26\u4e0awithscores\u5219\u4f1a\u8fd4\u56de\u73a9\u5bb6\u5206\u6570\u3002<\/p>\n<p>\u4e0b\u9762\u4e3a\u67e5\u770b\u6240\u6709\u73a9\u5bb6\u5206\u6570\u3002<\/p>\n<blockquote>\n<p>&gt; redis 127.0.0.1:6379&gt; zrevrange lb 0 -1 withscores<br \/> &gt; 1) \u201cuser3\u201d<br \/> &gt; 2) \u201c95\u201d<br \/> &gt; 3) \u201cuser2\u201d<br \/> &gt; 4) \u201c95\u201d<br \/> &gt; 5) \u201cuser4\u201d<br \/> &gt; 6) \u201c90\u201d<br \/> &gt; 7) \u201cuser1\u201d<br \/> &gt; 8) \u201c89\u201d<\/p>\n<\/blockquote>\n<p>\u4e0b\u9762\u4e3a\u67e5\u8be2\u524d\u4e09\u540d\u73a9\u5bb6\u5206\u6570\u3002<\/p>\n<blockquote>\n<p>&gt; redis 127.0.0.1:6379&gt; zrevrange lb 0 2 withscores<br \/> &gt; 1) \u201cuser3\u201d<br \/> &gt; 2) \u201c95\u201d<br \/> &gt; 3) \u201cuser2\u201d<br \/> &gt; 4) \u201c95\u201d<br \/> &gt; 5) \u201cuser4\u201d<br \/> &gt; 6) \u201c90\u201d<\/p>\n<\/blockquote>\n<h2>##### 4) zrevrank\u2014\u2014\u67e5\u770b\u73a9\u5bb6\u7684\u6392\u540d<\/h2>\n<p>\u547d\u4ee4\u683c\u5f0f\uff1a***zrevrank \u6392\u884c\u699c\u540d\u79f0 \u73a9\u5bb6\u6807\u8bc6*** \u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(log(N))<\/p>\n<p>\u4e0ezrevrange\u7c7b\u4f3c\uff0czrevrank\u662f\u4ee5\u5206\u6570\u7531\u9ad8\u5230\u4f4e\u7684\u6392\u5e8f\u8fd4\u56de\u73a9\u5bb6\u6392\u540d\uff08\u5b9e\u9645\u8fd4\u56de\u7684\u662f\u4ee50\u5f00\u59cb\u7684\u7d22\u5f15\uff09\uff0c\u5bf9\u5e94\u7684zrank\u5219\u662f\u4ee5\u5206\u6570\u7531\u4f4e\u5230\u9ad8\u7684\u6392\u5e8f\u8fd4\u56de\u6392\u540d\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u67e5\u8be2\u73a9\u5bb6user3\u548cuser4\u7684\u6392\u540d\u3002<\/p>\n<blockquote>\n<p>&gt; redis 127.0.0.1:6379&gt; zrevrank lb user3<br \/> &gt; (integer) 0<br \/> &gt; redis 127.0.0.1:6379&gt; zrevrank lb user1<br \/> &gt; (integer) 3<\/p>\n<\/blockquote>\n<h2>##### 5) zincrby\u2014\u2014\u589e\u51cf\u73a9\u5bb6\u5206\u6570<\/h2>\n<p>\u547d\u4ee4\u683c\u5f0f\uff1a***zincrby \u6392\u884c\u699c\u540d\u79f0 \u5206\u6570\u589e\u91cf \u73a9\u5bb6\u6807\u8bc6*** \u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(log(N))<\/p>\n<p>\u6709\u7684\u6392\u884c\u699c\u662f\u5728\u53d8\u66f4\u65f6\u91cd\u65b0\u8bbe\u7f6e\u73a9\u5bb6\u7684\u5206\u6570\uff0c\u800c\u8fd8\u6709\u7684\u6392\u884c\u699c\u5219\u662f\u4ee5\u589e\u91cf\u65b9\u5f0f\u4fee\u6539\u73a9\u5bb6\u5206\u6570\uff0c\u589e\u91cf\u53ef\u6b63\u53ef\u8d1f\u3002\u5982\u679c\u6267\u884czincrby\u65f6\u73a9\u5bb6\u5c1a\u4e0d\u5728\u6392\u884c\u699c\u4e2d\uff0c\u5219\u8ba4\u4e3a\u5176\u539f\u59cb\u5206\u6570\u4e3a0\uff0c\u76f8\u5f53\u4e8e\u6267\u884czdd\u3002<\/p>\n<p>\u4e0b\u9762\u5c06user4\u7684\u5206\u6570\u589e\u52a06\uff0c\u4f7f\u5176\u540d\u6b21\u4e0a\u5347\u5230\u7b2c\u4e00\u4f4d\u3002<\/p>\n<blockquote>\n<p>&gt; redis 127.0.0.1:6379&gt; zincrby lb 6 user4<br \/> &gt; \u201c96\u201d<br \/> &gt; redis 127.0.0.1:6379&gt; zrevrange lb 0 -1 withscores<br \/> &gt; 1) \u201cuser4\u201d<br \/> &gt; 2) \u201c96\u201d<br \/> &gt; 3) \u201cuser3\u201d<br \/> &gt; 4) \u201c95\u201d<br \/> &gt; 5) \u201cuser2\u201d<br \/> &gt; 6) \u201c95\u201d<br \/> &gt; 7) \u201cuser1\u201d<br \/> &gt; 8) \u201c89\u201d<\/p>\n<\/blockquote>\n<h2>##### 6) zrem\u2014\u2014\u79fb\u9664\u67d0\u4e2a\u73a9\u5bb6<\/h2>\n<p>\u547d\u4ee4\u683c\u5f0f\uff1a***zrem \u6392\u884c\u699c\u540d\u79f0 \u73a9\u5bb6\u6807\u8bc6*** \u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(log(N))<\/p>\n<p>\u4e0b\u9762\u79fb\u9664\u73a9\u5bb6user4\u3002<\/p>\n<blockquote>\n<p>&gt; redis 127.0.0.1:6379&gt; zrem lb user4<br \/> &gt; (integer) 1<br \/> &gt; redis 127.0.0.1:6379&gt; zrevrange lb 0 -1 withscores<br \/> &gt; 1) \u201cuser3\u201d<br \/> &gt; 2) \u201c95\u201d<br \/> &gt; 3) \u201cuser2\u201d<br \/> &gt; 4) \u201c95\u201d<br \/> &gt; 5) \u201cuser1\u201d<br \/> &gt; 6) \u201c89\u201d<\/p>\n<\/blockquote>\n<h2>##### 7) del\u2014\u2014\u5220\u9664\u6392\u884c\u699c<\/h2>\n<p>\u547d\u4ee4\u683c\u5f0f\uff1a***del \u6392\u884c\u699c\u540d\u79f0***<\/p>\n<p>\u6392\u884c\u699c\u5bf9\u8c61\u5728\u6211\u4eec\u9996\u6b21\u8c03\u7528zadd\u6216zincrby\u65f6\u88ab\u521b\u5efa\uff0c\u5f53\u6211\u4eec\u8981\u5220\u9664\u5b83\u65f6\uff0c\u8c03\u7528redis\u901a\u7528\u7684\u547d\u4ee4del\u5373\u53ef\u3002<\/p>\n<blockquote>\n<p>&gt; redis 127.0.0.1:6379&gt; del lb<br \/> &gt; (integer) 1<br \/> &gt; redis 127.0.0.1:6379&gt; get lb<br \/> &gt; (nil)<\/p>\n<\/blockquote>\n<p>## 3\\. \u76f8\u540c\u5206\u6570\u95ee\u9898<\/p>\n<p>\u514d\u8d39\u7684\u65b9\u6848\u603b\u6709\u90a3\u4e48\u4e00\u4e9b\u4e0d\u5b8c\u7f8e\u3002\u4ece\u524d\u9762\u7684\u4f8b\u5b50\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0cuser2\u548cuser3\u5177\u6709\u76f8\u540c\u7684\u5206\u6570\uff0c\u4f46\u5728\u6309\u5206\u6570\u9006\u5e8f\u6392\u5e8f\u65f6\uff0cuser3\u6392\u5728\u4e86user2\u524d\u9762\u3002\u800c\u5728\u5b9e\u9645\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u6211\u4eec\u66f4\u5e0c\u671b\u770b\u5230user2\u6392\u5728user3\u524d\u9762\uff0c\u56e0\u4e3auser2\u6bd4user3\u5148\u52a0\u5165\u6392\u884c\u699c\uff0c\u4e5f\u5c31\u662f\u8bf4user2\u5148\u5230\u8fbe\u8be5\u5206\u6570\u3002<\/p>\n<p>\u4f46Redis\u5728\u9047\u5230\u5206\u6570\u76f8\u540c\u65f6\u662f\u6309\u7167\u96c6\u5408\u6210\u5458\u81ea\u8eab\u7684\u5b57\u5178\u987a\u5e8f\u6765\u6392\u5e8f\uff0c\u8fd9\u91cc\u5373\u662f\u6309\u7167\u201duser2\u2033\u548c\u201duser3\u2033\u8fd9\u4e24\u4e2a\u5b57\u7b26\u4e32\u8fdb\u884c\u6392\u5e8f\uff0c\u4ee5\u9006\u5e8f\u6392\u5e8f\u7684\u8bdduser3\u81ea\u7136\u6392\u5230\u4e86\u524d\u9762\u3002<\/p>\n<p>\u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u8003\u8651\u5728\u5206\u6570\u4e2d\u52a0\u5165\u65f6\u95f4\u6233\uff0c\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1a<\/p>\n<p>&gt; \u5e26\u65f6\u95f4\u6233\u7684\u5206\u6570 = \u5b9e\u9645\u5206\u6570*10000000000 + (9999999999 \u2013 timestamp)<\/p>\n<p>timestamp\u6211\u4eec\u91c7\u7528\u7cfb\u7edf\u63d0\u4f9b\u7684time()\u51fd\u6570\uff0c\u4e5f\u5c31\u662f1970\u5e741\u67081\u65e5\u4ee5\u6765\u7684\u79d2\u6570\uff0c\u6211\u4eec\u91c7\u752832\u4f4d\u7684\u65f6\u95f4\u6233\uff08\u8fd9\u80fd\u575a\u6301\u52302038\u5e74\uff09\uff0c\u7531\u4e8e32\u4f4d\u65f6\u95f4\u6233\u662f10\u4f4d\u5341\u8fdb\u5236\u6574\u6570\uff08\u6700\u5927\u503c4294967295\uff09\uff0c\u6240\u4ee5\u6211\u4eec\u8ba9\u65f6\u95f4\u6233\u5360\u636e\u4f4e10\u4f4d\uff08\u5341\u8fdb\u5236\u6574\u6570\uff09\uff0c\u5b9e\u9645\u5206\u6570\u5219\u6269\u592710^10\u500d\uff0c\u7136\u540e\u628a\u4e24\u90e8\u5206\u76f8\u52a0\u7684\u7ed3\u679c\u4f5c\u4e3azset\u7684\u5206\u6570\u3002\u8003\u8651\u5230\u8981\u6309\u65f6\u95f4\u5012\u5e8f\u6392\u5217\uff0c\u6240\u4ee5\u65f6\u95f4\u6233\u8fd9\u90e8\u5206\u9700\u8981\u98a0\u5012\u4e00\u4e0b\uff0c\u8fd9\u4fbf\u662f\u75289999999999\u51cf\u53bb\u65f6\u95f4\u6233\u7684\u539f\u56e0\u3002\u5f53\u6211\u4eec\u8981\u8bfb\u53d6\u73a9\u5bb6\u5b9e\u9645\u5206\u6570\u65f6\uff0c\u53ea\u9700\u53bb\u6389\u540e10\u4f4d\u5373\u53ef\u3002<\/p>\n<p>\u521d\u6b65\u770b\u8d77\u6765\u8fd9\u4e2a\u65b9\u6848\u8fd8\u4e0d\u9519\uff0c\u4f46\u8fd9\u91cc\u9762\u6709\u4e24\u4e2a\u95ee\u9898\u3002<\/p>\n<p>\u7b2c\u4e00\u4e2a\u95ee\u9898\u662f\u5c0f\u95ee\u9898\uff0c\u91c7\u7528\u79d2\u4e3a\u65f6\u95f4\u6233\u53ef\u80fd\u533a\u5206\u5ea6\u8fd8\u4e0d\u591f\uff0c\u5982\u679c\u540c\u4e00\u79d2\u51fa\u73b0\u4e24\u4e2a\u5206\u6570\u76f8\u540c\u7684\u4ecd\u7136\u4f1a\u51fa\u73b0\u524d\u9762\u7684\u95ee\u9898\uff0c\u5f53\u7136\u6211\u4eec\u53ef\u4ee5\u9009\u62e9\u7cbe\u5ea6\u66f4\u9ad8\u7684\u65f6\u95f4\u6233\uff0c\u4f46\u5728\u5b9e\u9645\u573a\u666f\u4e2d\uff0c\u540c\u4e00\u79d2\u8c01\u6392\u524d\u9762\u5df2\u7ecf\u65e0\u5173\u7d27\u8981\u3002<\/p>\n<p>\u7b2c\u4e8c\u4e2a\u95ee\u9898\u662f\u5927\u95ee\u9898\uff0c\u56e0\u4e3aRedis\u7684\u5206\u6570\u7c7b\u578b\u91c7\u7528\u7684\u662fdouble\uff0c64\u4f4d\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u53ea\u670952\u4f4d\u6709\u6548\u6570\u5b57\uff0c\u5b83\u80fd\u7cbe\u786e\u8868\u8fbe\u7684\u6574\u6570\u8303\u56f4\u4e3a-2^53\u52302^53\uff0c\u6700\u9ad8\u53ea\u80fd\u8868\u793a16\u4f4d\u5341\u8fdb\u5236\u6574\u6570\uff08\u6700\u5927\u503c\u4e3a9007199254740992\uff0c\u5176\u5b9e\u8fde16\u4f4d\u4e5f\u4e0d\u80fd\u5b8c\u6574\u8868\u793a\uff09\u3002\u8fd9\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u524d\u9762\u65f6\u95f4\u6233\u5360\u4e8610\u4f4d\u7684\u8bdd\uff0c\u5206\u6570\u5c31\u53ea\u5269\u4e0b6\u4f4d\u4e86\uff0c\u8fd9\u5bf9\u4e8e\u67d0\u4e9b\u6392\u884c\u699c\u5206\u6570\u6765\u8bf4\u662f\u4e0d\u591f\u7528\u7684\u3002\u6211\u4eec\u53ef\u4ee5\u8003\u8651\u7f29\u51cf\u65f6\u95f4\u6233\u4f4d\u6570\uff0c\u6bd4\u5982\u4ece2015\u5e741\u67081\u65e5\u5f00\u59cb\u8ba1\u65f6\uff0c\u4f46\u8fd9\u4ecd\u7136\u589e\u52a0\u4e0d\u4e86\u51e0\u4f4d\u3002\u6216\u8005\u51cf\u5c11\u533a\u5206\u5ea6\uff0c\u4ee5\u5206\u949f\u3001\u5c0f\u65f6\u6765\u4f5c\u4e3a\u65f6\u95f4\u6233\u5355\u4f4d\u3002<\/p>\n<p>\u5982\u679cRedis\u7684\u5206\u6570\u7c7b\u578b\u4e3aint64\uff0c\u6211\u4eec\u5c31\u6ca1\u6709\u4e0a\u9762\u7684\u70e6\u607c\u3002\u8bf4\u5230\u8fd9\u91cc\uff0c\u5176\u5b9eRedis\u771f\u5e94\u8be5\u518d\u989d\u5916\u63d0\u4f9b\u4e00\u4e2aint64\u7c7b\u578b\u7684ZSet\uff0c\u4f46\u76ee\u524d\u53ea\u80fd\u662f\u5e7b\u60f3\uff0c\u9664\u975e\u81ea\u5df1\u6539\u5176\u6e90\u7801\u3002<\/p>\n<p>\u65e2\u7136Redis\u4e5f\u4e0d\u80fd\u5b8c\u7f8e\u89e3\u51b3\u6392\u884c\u699c\u95ee\u9898\uff0c\u90a3\u6700\u7ec8\u662f\u4e0d\u662f\u6709\u5fc5\u8981\u81ea\u5df1\u5b9e\u73b0\u4e00\u4e2a\u4e13\u95e8\u7684\u6392\u884c\u699c\u6570\u636e\u7ed3\u6784\u5462\uff1f\u6bd5\u7adf\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6392\u884c\u699c\u6709\u5f88\u591a\u53ef\u4ee5\u4f18\u5316\u7684\u5730\u65b9\uff0c\u6bd4\u73a9\u5bb6\u5448\u91d1\u5b57\u5854\u5206\u5e03\uff0c\u8d8a\u662f\u4f4e\u5206\u6bb5\u73a9\u5bb6\u6570\u91cf\u8d8a\u591a\uff0c\u540c\u4e00\u5206\u6570\u62e5\u6709\u5927\u91cf\u73a9\u5bb6\uff0c\u73a9\u5bb6\u589e\u52a0\u4e00\u5206\u90fd\u53ef\u80fd\u8d85\u8d8a\u5f88\u591a\u73a9\u5bb6\uff0c\u8fd9\u5c31\u4e3a\u4f18\u5316\u63d0\u4f9b\u4e86\u53ef\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Redis\u5b9e\u73b0\u5b9e\u65f6\u6392\u884c\u699c\u529f\u80fd&#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":[101],"tags":[],"class_list":["post-201527","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201527","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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