{"id":201251,"date":"2025-05-10T10:29:20","date_gmt":"2025-05-10T02:29:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201251\/"},"modified":"2025-05-10T10:29:20","modified_gmt":"2025-05-10T02:29:20","slug":"redis%e6%9c%89%e5%ba%8f%e9%9b%86%e5%90%88%e7%b1%bb%e5%9e%8b%e7%9a%84%e6%93%8d%e4%bd%9c_%e5%8a%a8%e5%8a%9b%e8%8a%82%e7%82%b9java%e5%ad%a6%e9%99%a2%e6%95%b4%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201251\/","title":{"rendered":"Redis\u6709\u5e8f\u96c6\u5408\u7c7b\u578b\u7684\u64cd\u4f5c_\u52a8\u529b\u8282\u70b9Java\u5b66\u9662\u6574\u7406"},"content":{"rendered":"

<\/b> <\/p>\n

Redis\u6709\u5e8f\u96c6\u5408\u7c7b\u578b\u7684\u64cd\u4f5c_\u52a8\u529b\u8282\u70b9Java\u5b66\u9662\u6574\u7406<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u600e\u4e48\u5165\u95e8\u6570\u636e\u5e93\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762golang\u5b66\u4e60\u7f51\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300aRedis\u6709\u5e8f\u96c6\u5408\u7c7b\u578b\u7684\u64cd\u4f5c_\u52a8\u529b\u8282\u70b9Java\u5b66\u9662\u6574\u7406\u300b\uff0c\u6d89\u53ca\u5230\u96c6\u5408\u3001redis\u6709\u5e8f\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

\u4eca\u5929\u6211\u4eec\u8bf4\u4e00\u4e0bRedis\u4e2d\u6700\u540e\u4e00\u4e2a\u6570\u636e\u7c7b\u578b \u201c\u6709\u5e8f\u96c6\u5408\u7c7b\u578b\u201d\uff0c\u56de\u9996\u4e4b\u524d\u5b66\u8fc7\u7684\u51e0\u4e2a\u6570\u636e\u7ed3\u6784\uff0c\u4e0d\u77e5\u9053\u4f60\u4f1a\u4e0d\u4f1a\u7531\u8877\u611f\u53f9\uff0c\u5f00\u6e90\u7684\u4e16\u754c\u771f\u597d\uff0c\u5199\u8fd9\u4e9b\u4ee3\u7801\u7684\u597d\u5fc3\u4eba\u771f\u7684\u8981\u4e00\u751f\u5e73\u5b89\u54c8\uff0c\u4e0d\u7ba1\u6211\u4eec\u60f3\u6ca1\u60f3\u7684\u5230\u7684\u4e1c\u897f\uff0c\u5728\u8fd9\u4e2a\u4e16\u754c\u4e0a\u90fd\u5df2\u7ecf\u5b58\u5728\u7740\uff0c\u66fe\u51e0\u4f55\u65f6\uff0c\u6211\u4eec\u60f3\u628a\u6240\u6709\u6570\u636e\u6309\u7167\u6570\u636e\u7ed3\u6784\u6a21\u5f0f\u7ec4\u6210\u540e\u704c\u8f93\u5230\u5185\u5b58\u4e2d\uff0c\u7136\u800c\u4e3a\u4e86\u8fbe\u5230\u5185\u5b58\u5171\u4eab\u7684\u65b9\u5f0f\uff0c\u4e0d\u5f97\u4e0d\u5c06\u8fd9\u5757\u5185\u5b58\u5355\u72ec\u90e8\u7f72\uff0c\u540c\u65f6\u8fd8\u8981\u8003\u8651\u600e\u4e48\u5e8f\u5217\u5316\uff0c\u4f55\u65f6\u5e8f\u5217\u4e92\u7684\u95ee\u9898\uff0c\u70e6\u5fc3\u4e8b\u592a\u591a\u592a\u591a\u3002\u3002\u3002\u540e\u6765\u624d\u77e5\u9053\u6709redis\u8fd9\u4e48\u4e2a\u73a9\u610f\uff0c\u80fd\u628a\u9ad8\u7ea7\u7684\uff0c\u4f4e\u7ea7\u7684\u6570\u636e\u7ed3\u6784\u5355\u72ec\u5305\u88c5\u5230\u4e00\u4e2a\u5171\u4eab\u5185\u5b58\u4e2d\uff08Redis\uff09\uff0c\u9ad8\u7ea7\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5c31\u662f\u672c\u7bc7\u6240\u8bf4\u7684 \u201c\u6709\u5e8f\u96c6\u5408\u201d\u3002       <\/p>\n

\u4e00\uff1a \u6709\u5e8f\u96c6\u5408\uff08SortedSet\uff09<\/strong><\/span><\/p>\n

\u3000\u3000 \u53ef\u80fd\u6709\u4e9b\u521d\u6b21\u63a5\u89e6SortedSet\u96c6\u5408\u7684\u4eba\u53ef\u80fd\u4f1a\u8bf4\uff0c\u8fd9\u4e2a\u96c6\u5408\u7684\u4f7f\u7528\u573a\u666f\u90fd\u6709\u54ea\u4e9b\uff1f\uff1f\uff1f \u6211\u53ef\u4ee5\u660e\u786e\u7684\u544a\u8bc9\u4f60\uff1a\u201c\u8303\u56f4\u67e5\u627e\u201c\u7684\u5929\u654c\u5c31\u662f\u201d\u6709\u5e8f\u96c6\u5408\u201c\uff0c\u4efb\u4f55\u5927\u6570\u636e\u91cf\u4e0b\uff0c\u67e5\u627e\u4e00\u4e2a\u8303\u56f4\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u6c38\u8fdc\u90fd\u662f O[(LogN)+M]\uff0c\u5176\u4e2dM\uff1a\u8fd4\u56de\u7684\u5143\u7d20\u4e2a\u6570\u3002<\/p>\n

\u3000\u3000 \u4e3a\u4e86\u4ece\u6613\u5230\u96be\uff0c\u6211\u4eec\u8fd8\u662f\u5148\u770b\u4e00\u4e0bredis\u624b\u518c\uff0c\u6311\u9009\u51e0\u4e2a\u6211\u4eec\u5e38\u7528\u7684\u65b9\u6cd5\u89c2\u6469\u89c2\u6469\u6548\u679c\u3002\u3002\u3002 \u3000<\/p>\n

\u3000\u3000<\/span>\u3000<\/p>\n

\u4ece\u4e0a\u976217\u4e2a\u547d\u4ee4\u4e2d\uff0c\u6beb\u65e0\u7591\u95ee\uff0c\u5e38\u7528\u7684\u547d\u4ee4\u4e3aZADD\uff0cZREM\uff0cZRANGEBYSCORE\uff0cZRANGE\u3002 <\/p>\n

1. ZADD<\/strong><\/p>\n

\nZADD key score member [[score member] [score member] ...]<\/pre>\n
\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a member \u5143\u7d20\u53ca\u5176 score \u503c\u52a0\u5165\u5230\u6709\u5e8f\u96c6 key \u5f53\u4e2d\u3002<\/p>\n
\u3000\u3000\u8fd9\u4e2a\u662f\u5b98\u65b9\u7684\u89e3\u91ca\uff0c\u8d4b\u503c\u65b9\u5f0f\u548chashtable\u5dee\u4e0d\u591a\uff0c\u53ea\u4e0d\u8fc7\u8fd9\u91cc\u7684key\u662f\u6709\u5e8f\u7684\u800c\u5df2\u3002\u4e0b\u9762\u6211\u4e3e\u4e2a\u4f8b\u5b50\uff1a\u6211\u6709\u4e00\u4e2afruits\u96c6\u5408\uff0c\u5176\u4e2d\u8bb0\u5f55\u4e86\u6bcf\u4e2a\u6c34\u679c\u7684price\uff0c\u7136\u540e\u6211\u6839\u636eprice\u7684\u5404\u79cd\u64cd\u4f5c\u6765\u83b7\u53d6\u5bf9\u5e94\u7684\u6c34\u679c\u4fe1\u606f\u3002<\/p>\n
<\/p>\n
\u6709\u4e86\u4e0a\u9762\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u63a5\u4e0b\u6765\u6211\u9010\u4e00\u9001\u4ed6\u4eec\u5230SortedSet\u4e2d\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n
<\/p>\n
\u4ece\u4e0a\u9762\u7684\u56fe\u4e2d\uff0c\u4e0d\u77e5\u9053\u4f60\u6709\u6ca1\u6709\u53d1\u73b0\u5230\u4ec0\u4e48\u5f02\u5e38\uff1f\uff1f\uff1f\u81f3\u5c11\u6709\u4e24\u79cd\u3002<\/p>\n
 \u6d6e\u70b9\u6570\u8fd1\u4f3c\u503c\u7684\u95ee\u9898\uff0c\u6bd4\u5982grape\uff0c\u6211\u5728add\u7684\u65f6\u5019\uff0c\u5199\u660e\u7684\u662f2.8\uff0c\u5728redis\u4e2d\u5374\u7ed9\u6211\u663e\u793a\u8fd1\u4f3c\u503c2.79999….\uff0c\u8fd9\u4e2a\u6ca1\u5173\u7cfb\uff0c\u672c\u6765\u5c31\u662f\u8fd9\u6837\u3002<\/p>\n
  \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cSortedSet\u662f\u4ee5key\u7684\u5347\u5e8f\u6392\u5e8f\u7684\u65b9\u5f0f\u8fdb\u884c\u5b58\u653e\u3002 <\/p>\n
2.  ZRANGE\uff0cZREVRANGE<\/strong><\/p>\n
\nZRANGE key start stop [WITHSCORES]<\/pre>\n
\u8fd4\u56de\u6709\u5e8f\u96c6 key \u4e2d\uff0c\u6307\u5b9a\u533a\u95f4\u5185\u7684\u6210\u5458\u3002<\/p>\n
\u5176\u4e2d\u6210\u5458\u7684\u4f4d\u7f6e\u6309 score \u503c\u9012\u589e(\u4ece\u5c0f\u5230\u5927)\u6765\u6392\u5e8f\u3002<\/p>\n
  \u4e0a\u9762\u5c31\u662fZRange\u7684\u683c\u5f0f\u6a21\u7248\uff0c\u524d\u9762\u6211\u5728\u8bf4ZAdd\u7684\u65f6\u5019\u5176\u5b9e\u6211\u4e5f\u5df2\u7ecf\u8bf4\u4e86\uff0c\u4f46\u662f\u8fd9\u4e2a\u4e0d\u662f\u91cd\u70b9\uff0c\u5728\u8bf4ZAdd\u7684\u65f6\u5019\u7559\u4e0b\u4e86\u4e00\u4e2a\u95ee\u9898\u5c31\u662fZRange\u9ed8\u8ba4\u662f\u6309\u7167key\u5347\u5e8f\u6392\u5e8f\u7684\uff0c\u5bf9\u5427\uff0c\u90a3\u5982\u679c\u4f60\u60f3\u5012\u5e8f\u663e\u793a\u7684\u8bdd\uff0c\u600e\u4e48\u529e\u5462\uff1f\uff1f\uff1f\u5176\u5b9e\u4f60\u53ef\u4ee5\u4f7f\u7528ZRange\u7684\u955c\u50cf\u65b9\u6cd5ZREVRANGE \u5373\u53ef\uff0c\u5982\u4e0b\u56fe\uff1a <\/p>\n
<\/p>\n
3. ZRANGEBYSCORE<\/strong><\/p>\n
\nZRANGEBYSCORE key min max [WITHSCORES] [LIMIT offset count]<\/pre>\n
\u8fd4\u56de\u6709\u5e8f\u96c6 key \u4e2d\uff0c\u6240\u6709 score \u503c\u4ecb\u4e8e min \u548c max \u4e4b\u95f4(\u5305\u62ec\u7b49\u4e8e min \u6216 max )\u7684\u6210\u5458\u3002\u6709\u5e8f\u96c6\u6210\u5458\u6309 score \u503c\u9012\u589e(\u4ece\u5c0f\u5230\u5927)\u6b21\u5e8f\u6392\u5217\u3002<\/p>\n
 \u8fd9\u4e2a\u7b97\u662f\u5bf9SortedSet\u6765\u8bf4\u6700\u6700\u91cd\u8981\u7684\u65b9\u6cd5\u4e86\uff0c\u6587\u7ae0\u5f00\u5934\u6211\u4e5f\u8bf4\u4e86\uff0c\u6709\u5e8f\u96c6\u5408\u6700\u5229\u4e8e\u8303\u56f4\u67e5\u627e\uff0c\u65e2\u7136\u662f\u67e5\u627e\uff0c\u4f60\u5f97\u6709\u6761\u4ef6\u5bf9\u5427\uff0c\u4e0b\u9762\u6211\u4e3e\u4e2a\u4f8b\u5b50\uff1a <\/p>\n
   \u6211\u8981\u627e\u52301-4\u5757\u94b1\u7684\u6c34\u679c\u79cd\u7c7b\uff0c\u7406\u6240\u5f53\u7136\uff0c\u6211\u4f1a\u627e\u5230\u3010\u8461\u8404\uff0c\u82f9\u679c\u3011\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n
\n 127.0.0.1:6379> zrangebyscore fruits 1 4 withscores\n 1) \"grape\"\n 2) \"2.7999999999999998\"\n 3) \"apple\"\n 4) \"3.5\"\n 127.0.0.1:6379> <\/pre>\n
   \u6211\u8981\u627e\u52301-4\u533a\u95f4\u4e2d\u6700\u63a5\u8fd14\u5757\u7684\u6c34\u679c\u662f\u54ea\u4e2a\uff1f\uff1f\uff1f \u8fd9\u4e2a\u95ee\u9898\u5c31\u662f\u8981\u627e\u5230apple\u8fd9\u4e2a\u9009\u9879\uff0c\u90a3\u5982\u679c\u627e\u5230\u5462\uff1f\uff1f\uff1f \u4ed4\u7ec6\u60f3\u60f3\u6211\u53ef\u4ee5\u8fd9\u4e48\u505a\uff0c<\/p>\n
\u3000  \u3000   \u5c061-4\u533a\u95f4\u4e2d\u7684\u6240\u6709\u6570\u5012\u5e8f\u518d\u53d6\u7b2c\u4e00\u6761\u6570\u636e\u5373\u53ef\uff0c\u5bf9\u5427\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n
\n127.0.0.1:6379> zrevrangebyscore fruits 4 1 withscores\n1) \"apple\"\n2) \"3.5\"\n3) \"grape\"\n4) \"2.7999999999999998\"\n127.0.0.1:6379> zrevrangebyscore fruits 4 1 withscores limit 0 1\n1) \"apple\"\n2) \"3.5\"\n127.0.0.1:6379><\/pre>\n
<\/p>\n
4. ZREM<\/strong><\/p>\n
\nZREM key member [member ...]<\/pre>\n
\u79fb\u9664\u6709\u5e8f\u96c6 key \u4e2d\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u6210\u5458\uff0c\u4e0d\u5b58\u5728\u7684\u6210\u5458\u5c06\u88ab\u5ffd\u7565\u3002<\/p>\n
\u5f53 key \u5b58\u5728\u4f46\u4e0d\u662f\u6709\u5e8f\u96c6\u7c7b\u578b\u65f6\uff0c\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u3002
 \u8ddf\u5176\u4ed6\u65b9\u6cd5\u4e00\u6837\uff0czrem\u7684\u76ee\u7684\u5c31\u662f\u5220\u9664\u6307\u5b9a\u7684value\u6210\u5458\uff0c\u6bd4\u5982\u8fd9\u91cc\u6211\u8981\u5220\u9664scores=3.5 \u7684 apple\u8bb0\u5f55\u3002<\/p>\n
\n127.0.0.1:6379> zrem fruits apple\n(integer) 1\n127.0.0.1:6379> zrange fruits 0 -1 withscores\n1) \"grape\"\n2) \"2.7999999999999998\"\n3) \"pear\"\n4) \"4.0999999999999996\"\n5) \"banana\"\n6) \"5\"\n7) \"nut\"\n8) \"9.1999999999999993\"\n127.0.0.1:6379><\/pre>\n
\u4f60\u4f1a\u53d1\u73b0\uff0c\u5df2\u7ecf\u6ca1\u6709apple\u7684\u76f8\u5173\u8bb0\u5f55\u4e86\uff0c\u56e0\u4e3a\u5df2\u7ecf\u88ab\u6211\u5220\u9664\u5566\u3002\u3002\u3002 <\/p>\n
\u4e8c\uff1a\u63a2\u7d22\u539f\u7406<\/strong><\/span><\/p>\n
\u3000\u3000\u7b80\u5355\u7684\u64cd\u4f5c\u90fd\u5df2\u7ecf\u6f14\u793a\u5b8c\u6bd5\u4e86\uff0c\u63a5\u4e0b\u6765\u63a2\u8ba8\u4e0bsortedset\u5230\u5e95\u662f\u7531\u4ec0\u4e48\u6570\u636e\u7ed3\u6784\u652f\u6491\u7684\uff0c\u5927\u5bb6\u5e94\u8be5\u65e9\u6709\u8033\u95fb\uff0csortedset\u5728CURD\u7684\u644a\u8fd8\u5206\u6790\u4e0a\u90fd\u662fLog(N)\u7684\u590d\u6742\u5ea6\uff0c\u53ef\u4ee5\u4e0e\u5e73\u8861\u4e8c\u53c9\u6811\u5ab2\u7f8e\uff0c\u5b83\u5c31\u662f1987\u5e74\u624d\u51fa\u6765\u7684\u65b0\u578b\u9ad8\u6548\u6570\u636e\u7ed3\u6784\u201c\u8df3\u8dc3\u8868(SkipList)\u201d,SkipList\u725b\u7684\u5730\u65b9\u5728\u4e8e\u8df3\u51fa\u4e86\u6811\u6a21\u578b\u7684\u601d\u7ef4\uff0c\u7528\u591a\u5c42\u94fe\u8868\u7684\u6a21\u5f0f\u6784\u9020\u4e86Log(N)\u7684\u65f6\u95f4\u590d\u6742\u5ea6\uff0c\u5c42\u7684\u9ad8\u5ea6\u589e\u52a0\u4e0e\u5426\uff0c\u91c7\u7528\u968f\u673a\u6570\u7684\u6a21\u5f0f\uff0c\u8fd9\u4e2a\u548c \u201dTreap\u6811\u201c \u7684\u601d\u60f3\u4e00\u6837\uff0c\u7528\u5b83\u6765\u4fdd\u6301\u201d\u6811\u201c\u6216\u8005\u201d\u94fe\u8868\u201d\u7684\u5e73\u8861\u3002
      \u8be6\u7ec6\u7684\u6211\u5c31\u4e0d\u8bf4\u4e86\u54c8\uff0c\u4e0d\u7136\u7684\u8bdd\u53c8\u662f\u4e00\u7bc7\u6587\u7ae0\u5566\uff0c\u5982\u679c\u975e\u8981\u4e86\u89e3\u7684\u8bdd\uff0c\u5927\u5bb6\u53ef\u4ee5\u53c2\u89c1\u4e00\u4e0b\u767e\u5ea6\u767e\u79d1\uff0c\u6211\u5927\u6982\u770b\u4e86\u4e0b\u767e\u79d1\u91cc\u9762\u753b\u7684\u8fd9\u5f20\u56fe\uff0c\u5c31\u50cf\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n
<\/p>\n
\u8fd9\u5e45\u56fe\u4e2d\u6709\u4e09\u6761\u94fe\uff0c\u5728SkipList\u4e2d\u662f\u5fc5\u987b\u8981\u4fdd\u8bc1\u6bcf\u6761\u94fe\u4e2d\u7684\u6570\u636e\u5fc5\u987b\u6709\u5e8f\u624d\u53ef\u4ee5\uff0c\u8fd9\u662f\u5fc5\u987b\u7684\u3002 <\/p>\n
1. \u5982\u679c\u8981\u5728level1\u5c42\u4e2d\u627e\u5230\u8282\u70b96\uff0c\u90a3\u4e48\u4f60\u9700\u8981\u9010\u4e00\u904d\u5386\uff0c\u9700\u89816\u6b21\u67e5\u627e\u624d\u80fd\u6b63\u786e\u7684\u627e\u5230\u6570\u636e\u3002<\/p>\n
2. \u5982\u679c\u4f60\u5728level2\u5c42\u4e2d\u627e\u5230\u8282\u70b96\u7684\u8bdd\uff0c\u90a3\u4e48\u4f60\u9700\u89814\u6b21\u624d\u80fd\u627e\u5230\u3002<\/p>\n
3. \u5982\u679c\u4f60\u5728level3\u5c42\u4e2d\u627e\u5230\u8282\u70b96\u7684\u8bdd\uff0c\u90a3\u4e48\u4f60\u9700\u89813\u6b21\u5c31\u53ef\u4ee5\u627e\u5230\u3002\u3002\u3002\u3002 <\/p>\n
\u73b0\u5728\u5b8f\u89c2\u7406\u89e3\u4e0a\uff0c\u662f\u4e0d\u662f\u6709\u4e00\u79cd\u611f\u89c9\uff0c\u5982\u679clevel\u7684\u5c42\u6570\u8d8a\u9ad8\uff0c\u76f8\u5bf9\u627e\u5230\u6570\u636e\u9700\u8981\u904d\u5386\u7684\u6b21\u6570\u5c31\u8d8a\u5c11\uff0c\u8fd9\u5c31\u662f\u8df3\u8dc3\u8868\u7684\u601d\u60f3\uff0c\u4e0d\u7136\u600e\u4e48\u8df3\u54c8\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u770b\u770bredis\u4e2d\u662f\u600e\u4e48\u5b9a\u4e49\u8fd9\u4e2askiplist\u7684\uff0c\u5b83\u7684\u6e90\u7801\u5728redis.h \u4e2d\uff1a<\/p>\n
\n\/* ZSETs use a specialized version of Skiplists *\/\n typedef struct zskiplistNode {\n  robj *obj;\n  double score;\n  struct zskiplistNode *backward;\n  struct zskiplistLevel {\n   struct zskiplistNode *forward;\n   unsigned int span;\n  } level[];\n } zskiplistNode;\n typedef struct zskiplist {\n  struct zskiplistNode *header, *tail;\n  unsigned long length;\n  int level;\n } zskiplist;<\/pre>\n
\u4ece\u6e90\u7801\u4e2d\u53ef\u4ee5\u770b\u51fa\u5982\u4e0b\u51e0\u70b9\uff1a<\/p>\n
   zskiplistnode\u5c31\u662fskiplist\u4e2d\u7684node\u8282\u70b9\uff0c\u8282\u70b9\u4e2d\u6709\u4e00\u4e2alevel[]\u6570\u7ec4\uff0c\u5982\u679c\u4f60\u591f\u806a\u660e\u7684\u8bdd\uff0c\u4f60\u5e94\u8be5\u77e5\u9053\u8fd9\u4e2alevel[]\u5c31\u662f\u5b58\u653e\u7740\u4e0a\u56fe\u4e2d
          \u7684 level1\uff0clevel2\uff0clevel3 \u8fd9\u4e09\u6761\u94fe\u3002 <\/p>\n
   level[]\u91cc\u9762\u662fzskiplistLevel\u5b9e\u4f53\uff0c\u8fd9\u4e2a\u5b9e\u4f53\u4e2d\u6709\u4e00\u4e2a *forward\u6307\u9488\uff0c\u8fd9\u4e2a\u6307\u9488\u5c31\u662f\u6307\u5411\u540c\u5c42\u4e2d\u7684\u540e\u7eed\u8282\u70b9\u3002 <\/p>\n
   \u5728zskiplistLevel\u4e2d\u8fd8\u6709\u4e00\u4e2a robj\u7c7b\u578b\u7684*obj\u6307\u9488\uff0c\u8fd9\u4e2a\u5c31\u662fRedisObject\u5bf9\u8c61\u54c8\uff0c\u91cc\u9762\u5b58\u653e\u7684\u5c31\u662f\u6211\u4eec\u7684value\u503c\uff0c\u63a5\u4e0b\u6765\u8fd8\u6709\u4e00\u4e2a score\u5c5e\u6027\uff0c\u8fd9\u4e2a\u5c31\u662fkey\u503c\u5566\u3002\u3002\u3002skiplist\u5c31\u662f\u6839\u636e\u5b83\u6765\u8fdb\u884c\u6392\u5e8f\u7684\u54c8\u3002 <\/p>\n
  \u63a5\u4e0b\u6765\u5c31\u662f\u7b2c\u4e8c\u4e2a\u679a\u4e3ezskiplist\uff0c\u8fd9\u4e2a\u6ca1\u4ec0\u4e48\u610f\u601d\uff0c\u7eaf\u7cb9\u7684\u5305\u88c5\u5c42\uff0c\u6bd4\u5982\u91cc\u9762\u7684length\u662f\u8bb0\u5f55skiplist\u4e2d\u7684\u8282\u70b9\u4e2a\u6570\uff0clevel\u8bb0\u5f55skiplist \u5f53\u524d\u7684\u5c42\u6570\uff0c\u7528*header,*tail\u8bb0\u5f55skiplist\u4e2d\u7684\u9996\u8282\u70b9\u548c\u5c3e\u8282\u70b9\u3002\u3002\u3002\u4ec5\u6b64\u800c\u5df2\u3002\u3002\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Redis\u6709\u5e8f\u96c6\u5408\u7c7b\u578b\u7684\u64cd\u4f5c_\u52a8...<\/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-201251","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201251","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=201251"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201251\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}