{"id":34149,"date":"2022-11-10T07:25:48","date_gmt":"2023-03-11T15:54:28","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bb%8a%e5%a4%a9%e5%bc%80%e5%a7%8b%e5%ad%a6%e4%b9%a0redis%e4%bb%8esql%e8%bf%87%e6%b8%a1%e5%88%b0redis\/"},"modified":"2024-04-28T23:58:45","modified_gmt":"2024-04-28T15:58:45","slug":"%e4%bb%8a%e5%a4%a9%e5%bc%80%e5%a7%8b%e5%ad%a6%e4%b9%a0redis%e4%bb%8esql%e8%bf%87%e6%b8%a1%e5%88%b0redis","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bb%8a%e5%a4%a9%e5%bc%80%e5%a7%8b%e5%ad%a6%e4%b9%a0redis%e4%bb%8esql%e8%bf%87%e6%b8%a1%e5%88%b0redis\/","title":{"rendered":"\u4eca\u5929\u5f00\u59cb\u5b66\u4e60Redis~\u4eceSQL\u8fc7\u6e21\u5230Redis~"},"content":{"rendered":"<p>\u8fd9\u7bc7\u6587\u7ae0\u662fKLab Advent Calendar 2015\u7684\u7b2c22\u5929\u7684\u6587\u7ae0\u3002<\/p>\n<p>\u4f60\u597d\u3002\u4f5c\u4e3aKLab\u516c\u53f8\uff0c\u8fd9\u662f\u6211\u4eec\u5f88\u4e45\u4ee5\u6765\u7684Advent Calendar\u53c2\u6218\u3002\u6392\u540d\u7b2c22\u4f4d\u4e5f\u6709\u4e9b\u7d27\u5f20\u5462\u3002<br \/>\n\u6211\u662f\u5728\u5927\u962a\u529e\u516c\u5ba4\u7f16\u5199\u670d\u52a1\u5668\u5e94\u7528\u7a0b\u5e8f\u7684\u5c0f\u72d7\u3002\u559c\u6b22\u521b\u5efa\u7ba1\u7406\u5de5\u5177\u548c\u8fd0\u7ef4\u652f\u6301\u5de5\u5177\u3002<\/p>\n<h2>\u9996\u5148<\/h2>\n<p>\u672c\u6587\u5c06\u4ecb\u7ecd\u4f7f\u7528Redis\u5bf9\u670d\u52a1\u5668\u5e94\u7528\u8fdb\u884c\u52a0\u901f\u548c\u8c03\u4f18\u3002\u867d\u7136\u4e3b\u8981\u662f\u9488\u5bf9\u6e38\u620f\u7f16\u5199\u7684\uff0c\u4f46\u6211\u8ba4\u4e3a\u5b83\u4e5f\u9002\u7528\u4e8e\u5176\u4ed6Web\u5e94\u7528\u3002<\/p>\n<h2>Redis\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>\u6211\u653e\u5f03\u4e86\u3002<br \/>\n\u5982\u679c\u60a8\u80fd\u770b\u770b\u5b98\u65b9\u7684Redis\uff0c\u5927\u90e8\u5206\u60c5\u51b5\u5e94\u8be5\u90fd\u80fd\u660e\u767d\u3002<\/p>\n<h2>\u9700\u8981\u4ec0\u4e48\u6837\u7684\u8c03\u97f3\uff1f<\/h2>\n<p>\u4e0d\u4f1a\u8bb2\u8fd9\u4e48\u590d\u6742\u7684\u8bdd\u3002\u8bf7\u5c06\u5176\u89c6\u4e3a\u5b9e\u4f8b\u63d0\u793a\u3002<br \/>\n\u6587\u7ae0\u4e2d\u7684\u793a\u4f8b\u4ee3\u7801\u662f\u7528PHP\u7f16\u5199\u7684\uff0c\u4f46\u57fa\u672c\u4e0a\u53ea\u662f\u5c06SQL\uff08MySQL\uff09\u66f4\u6539\u4e3aRedis\uff0c\u6240\u4ee5\u6211\u5199\u7684\u4ee3\u7801\u4e0d\u9700\u8981\u592a\u5728\u610f\u3002\u5982\u679c\u4e0d\u6e05\u695a\uff0c\u8bf7\u5728\u8bc4\u8bba\u4e2d\u6307\u51fa\u3002<br \/>\n\u603b\u7684\u6765\u8bf4\uff0c\u5c31\u662f\u5728\u73b0\u6709\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u4f7f\u7528Redis\u6765\u52a0\u901f\u8fd0\u884c\u8f83\u91cd\u7684SQL\u3002<\/p>\n<h2>\u8fd9\u79cd\u4e8b\u60c5\u53ef\u80fd\u53d1\u751f\u5417\uff1f<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u601d\u3044\u306e\u5916\u3001\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u7cfb\u306e\u30da\u30fc\u30b8\u306e\u95b2\u89a7\u6570\u304c\u9ad8\u3081<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u601d\u3063\u3066\u3082\u307f\u306a\u304b\u3063\u305f\u6761\u4ef6\u3067\u306eDB\u691c\u7d22\u30ed\u30b8\u30c3\u30af\u306e\u8ffd\u52a0<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">GROUP BY \u3068\u304b ORDER \u3068\u304b\u306e\u91cd\u305f\u3044 SQL \u304c Home\u753b\u9762 \u3068\u304b\u3067\u5229\u7528\u3055\u308c\u3061\u3083\u3063\u3066\u308b<\/ul>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528Redis\u53ef\u4ee5\u52a0\u901f\uff01\uff08\u5e94\u8be5\u4f1a\u6709\u5f88\u591a\u3002\u867d\u7136\u6211\u77e5\u9053SQL\u5f88\u91cd\uff0c\u4f46\u662f\u6ca1\u529e\u6cd5\u554a&#8230;\u5bf9\u4e8e\u5df2\u7ecf\u653e\u5f03\u7684\u4eba\uff0c\u6211\u5f3a\u70c8\u63a8\u8350\u60a8\u5c1d\u8bd5\u4e00\u4e0b\u8fd9\u79cd\u65b9\u6cd5\u3002\u90a3\u4e48\u5b9e\u9645\u4e0a\uff0c\u8ba9\u6211\u4eec\u4ece\uff08\u53ef\u80fd\u662f\uff09\u6700\u5bb9\u6613\u4e0a\u624b\u7684\u6392\u540d\u5904\u7406\u5f00\u59cb\uff0c\u4f7f\u7528Redis\u6765\u52a0\u901f\u8bd5\u8bd5\u770b\u5427\u3002<\/p>\n<h2>\u5e38\u89c1\u7684\u6392\u884c\u699c<\/h2>\n<p>\u5982\u679c\u63d0\u5230\u6e38\u620f\u548cRedis\uff0c\u8bb8\u591a\u4eba\u4f1a\u60f3\u5230\u8fd9\u4e2a\u5427\u3002<\/p>\n<p>\u8868\uff1a\u821e\u53f0\u5206\u6570<\/p>\n<div>\n<div class=\"post-table\">idplayer_idstage_idscorecreated_at147235102015-10-15 15:38:572998310352015-08-30 05:23:03<\/div>\n<\/div>\n<pre class=\"post-pre\"><code><span class=\"k\">SELECT<\/span> <span class=\"n\">player_id<\/span><span class=\"p\">,<\/span> <span class=\"n\">stage_id<\/span><span class=\"p\">,<\/span> <span class=\"k\">max<\/span><span class=\"p\">(<\/span><span class=\"n\">score<\/span><span class=\"p\">)<\/span> <span class=\"k\">as<\/span> <span class=\"n\">score<\/span>\r\n<span class=\"k\">FROM<\/span> <span class=\"n\">stage_score<\/span>\r\n<span class=\"k\">WHERE<\/span> <span class=\"n\">stage_id<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span>\r\n<span class=\"k\">GROUP<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">player_id<\/span>\r\n<span class=\"k\">ORDER<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">score<\/span> <span class=\"k\">DESC<\/span>\r\n<span class=\"k\">LIMIT<\/span> <span class=\"mi\">0<\/span><span class=\"p\">,<\/span> <span class=\"mi\">10<\/span><span class=\"p\">;<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u6211\u4f7f\u7528\u7eaf\u7cb9\u7684SQL\uff0c\u5c31\u4f1a\u53d8\u6210\u8fd9\u6837\u3002<\/p>\n<p>GROUP BY\u3001ORDER\uff0c\u751a\u81f3\u5728\u89c4\u683c\u4e0a\u6dfb\u52a0LIMIT\u4e5f\u662f\u5f88\u5e38\u89c1\u7684\u4e8b\u60c5\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0c\u5982\u679c\u4ec5\u4ec5\u4f7f\u7528MySQL\u6765\u5b9e\u73b0\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5168\u8868\u626b\u63cf\uff0c\u8d1f\u8f7d\u975e\u5e38\u9ad8\u2026\u2026\u8fd9\u6837\u7684\u60c5\u51b5\u4e5f\u7ecf\u5e38\u53d1\u751f\u3002\u4ec5\u4ec5\u4f7f\u7528MySQL\u6765\u5b9e\u73b0\u5b9e\u65f6\u6392\u540d\u662f\u975e\u5e38\u56f0\u96be\u7684\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528Redis\u6765\u5b9e\u73b0\u5427\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/ Redis\u63a5\u7d9a<\/span>\r\n<span class=\"nv\">$redis<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Redis<\/span><span class=\"p\">();<\/span>\r\n<span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">connect<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"localhost\"<\/span><span class=\"p\">,<\/span><span class=\"mi\">6379<\/span><span class=\"p\">);<\/span>\r\n<span class=\"c1\">\/\/ stage:1\u306eTOP 10\u3092\u53d6\u5f97<\/span>\r\n<span class=\"nv\">$stage_id<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nv\">$with_score<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">true<\/span><span class=\"p\">;<\/span><span class=\"c1\">\/\/ \u30b9\u30b3\u30a2\u60c5\u5831\u3082\u7d50\u679c\u30bb\u30c3\u30c8\u306b\u542b\u3080\u304b\u3069\u3046\u304b<\/span>\r\n<span class=\"nv\">$key<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"ranking:stage_id:<\/span><span class=\"si\">{<\/span><span class=\"nv\">$stage_id<\/span><span class=\"si\">}<\/span><span class=\"s2\">\"<\/span><span class=\"p\">;<\/span><span class=\"c1\">\/\/ \u30e9\u30f3\u30ad\u30f3\u30b0\u5c02\u7528Key\u3067StageId\u3054\u3068\u306bkey\u3092\u4f5c\u6210<\/span>\r\n<span class=\"nv\">$topPlayerIds<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">zRevRange<\/span><span class=\"p\">(<\/span><span class=\"nv\">$key<\/span><span class=\"p\">,<\/span> <span class=\"mi\">0<\/span><span class=\"p\">,<\/span> <span class=\"mi\">9<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$with_score<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>\u597d\u5bb9\u6613\u554a\u3002<\/p>\n<h3>\u6700\u8fd1\u6709\u4ec0\u4e48\u53d8\u5316\u5417\uff1f sh\u00e9 me ma?)<\/h3>\n<p>\u4e0a\u8ff0\u7684SQL\u5982\u4f55\u8f6c\u6362\u4e3aRedis\u662f\u901a\u8fc7\u5c06Key\u8bbe\u7f6e\u4e3a\u6bcf\u4e2aStageId\u8fdb\u884c\u5904\u7406\u6765\u63a5\u7ba1SQL\u4e2d\u7684WHERE\u5b50\u53e5\u7684\u5904\u7406\u3002<br \/>\n\u6b64\u5916\uff0c\u901a\u8fc7\u4f7f\u7528\u6392\u5e8f\u96c6\u5408\u4f5c\u4e3a\u6570\u636e\u7c7b\u578b\uff0cORDER\u5b50\u53e5\u7684\u5904\u7406\u5728\u6570\u636e\u96c6\u8bbe\u7f6e\u65f6\u81ea\u52a8\u8fdb\u884c\uff0c\u5e76\u5728\u5185\u90e8\u91cd\u65b0\u6392\u5e8f\u3002<\/p>\n<h3>\u547d\u4ee4\u7684\u610f\u4e49 de<\/h3>\n<p>\u8fd9\u6b21\u6211\u4eec\u4f7f\u7528\u4e86zRevRange\u65b9\u6cd5\uff0c\u5b9e\u9645\u4e0a\u8c03\u7528\u7684\u662fRedis\u672c\u8eab\u7684zrevrange\u3002\u5177\u4f53\u547d\u4ee4\u7684\u8be6\u7ec6\u89e3\u91ca\u5c06\u88ab\u7701\u7565\uff0c\u53ef\u4ee5\u5c06\u5176\u5206\u4e3az \/ rev \/ range\u4e09\u4e2a\u90e8\u5206\u3002<\/p>\n<p>z \u30bd\u30fc\u30c8\u6e08\u307f\u30bb\u30c3\u30c8\u578b\u306b\u5bfe\u3059\u308b\u30b3\u30de\u30f3\u30c9<\/p>\n<p>rev reverse\u306e\u7565\u3067\u964d\u9806\u306b\u30bd\u30fc\u30c8\u3059\u308b<\/p>\n<p>range \u4e00\u5b9a\u7bc4\u56f2\u5185\u3092\u6307\u3059\u3053\u3068\u304c\u591a\u3044<\/p>\n<p>\u901a\u8fc7\u8fd9\u4e2a\u547d\u4ee4zrevrange\uff0c\u53ef\u4ee5\u6309\u964d\u5e8f\u83b7\u53d6\u5df2\u6392\u5e8f\u96c6\u5408\u7684\u4e00\u5b9a\u8303\u56f4\u5185\u7684\u5143\u7d20\u3002\u5b83\u51e0\u4e4e\u76f8\u5f53\u4e8e\u4e4b\u524d\u63d0\u5230\u7684SQL\u8bed\u53e5\u7684\u542b\u4e49\u3002\u800c\u4e14\u547d\u4ee4\u540d\u79f0\u975e\u5e38\u76f4\u89c2\u6613\u61c2\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u3058\u3083\u3042\u6607\u9806\u306f\uff1f<\/ul>\n<\/li>\n<\/ul>\n<p>zrange<\/p>\n<p>n\u70b9\u301cm\u70b9\u306e\u30ea\u30b9\u30c8\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\uff1f<\/p>\n<p>zrangebyscore or zrevrangebyscore<\/p>\n<p>\u3053\u306e\u4eba\u3001\u4f55\u4f4d\uff1f<\/p>\n<p>zrank<\/p>\n<p>\u9019\u771f\u662f\u975e\u5e38\u660e\u767d\u6613\u61c2\u3002<\/p>\n<h2>\u9664\u4e86\u6392\u540d\u4ee5\u5916\u7684\u6392\u5e8f\u6570\u636e<\/h2>\n<p>Redis\u7684\u6709\u5e8f\u96c6\u5408\u7ecf\u5e38\u7528\u4e8e\u6392\u884c\u699c\u7684\u4e3b\u9898\uff0c\u9664\u4e86\u8fd9\u79cd\u7528\u6cd5\u5916\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u7528\u9014\u3002<br \/>\n\u6709\u5e8f\u96c6\u5408\u7684\u6392\u5e8f\u7279\u6027\u53ef\u4ee5\u6d88\u9664\u7c7b\u4f3c\u4e8eSQL\u4e2d\u7684ORDER BY\u5b50\u53e5\u548cLIMIT\u5b50\u53e5\u7684\u601d\u8003\u65b9\u5f0f\uff08\u590d\u6742\u7684\u60c5\u51b5\u53ef\u80fd\u4f1a\u53d8\u5f97\u56f0\u96be\u2026\uff09\u3002<br \/>\n\u4f8b\u5982\uff0c\u6700\u65b0\u7684\u670b\u53cb\u6253\u62db\u547c\u5217\u8868\u3002<br \/>\n\u8868\uff1afriend_greet<\/p>\n<div>\n<div class=\"post-table\">idplayer_idtarget_idcreated_at17992432015-11-02 07:38:0421584622015-09-09 18:48:30<\/div>\n<\/div>\n<pre class=\"post-pre\"><code><span class=\"k\">SELECT<\/span> <span class=\"n\">player_id<\/span><span class=\"p\">,<\/span> <span class=\"n\">target_id<\/span><span class=\"p\">,<\/span> <span class=\"nb\">DATE<\/span><span class=\"p\">(<\/span><span class=\"n\">created_at<\/span><span class=\"p\">)<\/span> <span class=\"k\">AS<\/span> <span class=\"nb\">date<\/span><span class=\"p\">,<\/span> <span class=\"k\">MAX<\/span><span class=\"p\">(<\/span><span class=\"n\">created_at<\/span><span class=\"p\">)<\/span> <span class=\"k\">as<\/span> <span class=\"n\">updated_at<\/span>\r\n<span class=\"k\">FROM<\/span> <span class=\"n\">friend_greet<\/span>\r\n<span class=\"k\">WHERE<\/span> <span class=\"n\">player_id<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">123<\/span>\r\n<span class=\"k\">GROUP<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">target_id<\/span><span class=\"p\">,<\/span> <span class=\"n\">player_id<\/span><span class=\"p\">,<\/span> <span class=\"nb\">DATE<\/span><span class=\"p\">(<\/span><span class=\"n\">created_at<\/span><span class=\"p\">)<\/span>\r\n<span class=\"k\">ORDER<\/span> <span class=\"k\">BY<\/span> <span class=\"n\">updated_at<\/span> <span class=\"k\">DESC<\/span>\r\n<span class=\"k\">LIMIT<\/span> <span class=\"mi\">20<\/span> \r\n<\/code><\/pre>\n<p>\u4e0d\u60f3\u5728\u8003\u8651\u6027\u80fd\u7684\u6e38\u620fAPI\u4e2d\u6267\u884c\u8fd9\u4e2aSQL\u8bed\u53e5\u5462\u3002\u8fd9\u4e2aSQL\u7684\u76ee\u7684\u662f\u83b7\u53d6\u4ee5TargetId\u95ee\u5019\u8fc7\u7684PlayerId\u6bcf\u5929\u7684\u6700\u540e\u95ee\u5019\u65f6\u95f4(updated_at)\u7684\u5217\u8868\u3002\u90a3\u6211\u4eec\u8bd5\u8bd5\u7528Redis\u5427\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u4ecd\u7136\u4f7f\u7528\u6392\u5e8f\u96c6\u5408\u3002\u771f\u662f\u592a\u559c\u6b22\u4e86\u3002\u6392\u5e8f\u96c6\u5408\u7684score\u4e0d\u4ec5\u4ec5\u662f\u771f\u6b63\u7684\u5206\u6570\u503c\uff0c\u65f6\u95f4\u6233\u4e5f\u53ef\u4ee5\u3002\u5728\u67d0\u79cd\u610f\u4e49\u4e0a\uff0c\u5b83\u5c31\u50cf\u662f\u65f6\u95f4\u6233\u5206\u6570\u7684\u8981\u6c42\u3002\u6392\u5e8f\u96c6\u5408\u7684member\u597d\u5728\u53ef\u4ee5\u4f7f\u7528string\u7c7b\u578b\u4f20\u9012\u6570\u636e\uff0c\u6240\u4ee5\u6211\u4eec\u5c06\u5728member\u4e2d\u5b58\u50a8PlayerId\u548c\u65e5\u671f\u7684\u6570\u636e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$player_id<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">123<\/span><span class=\"p\">;<\/span>\r\n<span class=\"c1\">\/\/ \u6328\u62f6\u7528Key<\/span>\r\n<span class=\"nv\">$key<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"greet:target_id:<\/span><span class=\"si\">{<\/span><span class=\"nv\">$target_id<\/span><span class=\"si\">}<\/span><span class=\"s2\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nv\">$member<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">getGreetMemberString<\/span><span class=\"p\">(<\/span><span class=\"nv\">$player_id<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u8ffd\u52a0\u6642<\/span>\r\n<span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">zAdd<\/span><span class=\"p\">(<\/span><span class=\"nv\">$key<\/span><span class=\"p\">,<\/span> <span class=\"nb\">time<\/span><span class=\"p\">(),<\/span> <span class=\"nv\">$member<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u62bd\u51fa\u6642<\/span>\r\n<span class=\"nv\">$with_score<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">true<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nv\">$result<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">zRevRange<\/span><span class=\"p\">(<\/span><span class=\"nv\">$key<\/span><span class=\"p\">,<\/span> <span class=\"mi\">0<\/span><span class=\"p\">,<\/span> <span class=\"mi\">20<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$with_score<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"k\">function<\/span> <span class=\"n\">getGreetMemberString<\/span><span class=\"p\">(<\/span><span class=\"nv\">$player_id<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nv\">$player_id<\/span> <span class=\"mf\">.<\/span> <span class=\"s2\">\"_\"<\/span> <span class=\"mf\">.<\/span> <span class=\"nb\">date<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"Ymd\"<\/span><span class=\"p\">,<\/span> <span class=\"nb\">time<\/span><span class=\"p\">());<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u5728\u6b64\u6b21Redis\u5316\u8fc7\u7a0b\u4e2d\u7684\u5173\u952e\u662f\u5c06\u591a\u4e2aGROUP BY\u6307\u5b9a\u91cd\u65b0\u5206\u914d\u7ed9Key\u548cMember\uff0c\u4ee5\u4fbf\u8fdb\u884c\u5355\u4e00Key\u7684\u7ba1\u7406\u3002<br \/>\nRedis\u80fd\u591f\u5c06GROUP\u53e5\u3001ORDER\u53e5\u548cLIMIT\u53e5\u5168\u90e8\u89e3\u8131\uff0c\u56e0\u6b64\u6211\u4eec\u5c3d\u91cf\u4e0d\u5e0c\u671b\u5728\u524d\u7aefAPI\u4e2d\u53d1\u51fa\u8fd9\u4e9b\u6307\u4ee4\u3002\u975e\u5e38\u611f\u8c22Redis\u3002<\/p>\n<h2>\u6700\u540e<\/h2>\n<p>\u6839\u636e\u6570\u636e\u5b58\u50a8\u65b9\u5f0f\u7684\u4e0d\u540c\uff0c\u5373\u4f7fJOIN\u662f\u5fc5\u9700\u7684\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5355\u4e00\u7684\u952e\u8fdb\u884c\u7ba1\u7406\u3002\u5982\u679c\u6211\u4eec\u6709\u610f\u8bc6\u5730\u8fdb\u884c\u7b80\u5355\u7684\u6570\u636e\u8bbe\u8ba1\uff0c\u6211\u8ba4\u4e3a\u53ef\u4ee5\u66f4\u591a\u5730\u4f9d\u8d56Redis\u6765\u5b9e\u73b0\u52a0\u901f\u3002\u4e0eMySQL\u76f8\u53cd\uff0c\u6240\u6709\u7684\u547d\u4ee4\u90fd\u662f\u539f\u5b50\u6267\u884c\u7684\u3002\u56e0\u6b64\uff0c\u8981\u8fdb\u884c\u7c7b\u4f3c\u4e8eMySQL\u4e2d\u5e38\u89c1\u7684\u4e8b\u52a1\u5904\u7406\u6216\u540c\u65f6\u66f4\u65b0\u5176\u4ed6\u6570\u636e\uff0c\u9700\u8981\u8fdb\u884c\u4e00\u4e9b\u989d\u5916\u7684\u5904\u7406\u3002\uff08\u5728Lua\u4e2d\u5b9e\u73b0\u8fd9\u4e2a\u8fc7\u7a0b\u5f88\u5bb9\u6613\uff09<\/p>\n<p>\u8fd9\u6b21\u7684\u4e3b\u9898\u662f\u5173\u4e8e\u5c06\u73b0\u6709\u7684\u5e38\u7528SQL\u8f6c\u6362\u6210Redis\u7684\u6587\u7ae0\uff0c\u9762\u5411\u521d\u5b66\u8005\u3002\u5982\u679c\u6709\u4eba\u80fd\u8bfb\u5b8c\u8fd9\u7bc7\u6587\u7ae0\uff0c\u7136\u540e\u660e\u5929\u5c31\u53bb\u7528grep\u547d\u4ee4\u627e\u51fa&#8221;GROUP BY&#8221;\u7b49\u5185\u5bb9\uff0c\u90a3\u5c31\u53ef\u4ee5\u5403\u4e0a\u7f8e\u5473\u7684\u996d\u83dc\u4e86\u3002\u8bf7\u4e00\u5b9a\u8981\u5c1d\u8bd5\u4e00\u4e0b\u3002<\/p>\n<p>\u7531\u4e8e\u65f6\u95f4\u539f\u56e0\uff0c\u6211\u60f3\u5230\u8fd9\u91cc\u5c31\u7ed3\u675f\u4e86\uff0c\u4f46\u6211\u4e2a\u4eba\u5e0c\u671b\u5728\u7b2c\u4e8c\u7bc7\u6587\u7ae0\u4e2d\u5199\u66f4\u591a\u7cbe\u5f69\u7684Redis\u7528\u6cd5\u3002\u8fd9\u662f\u6211\u81ea\u5df1\u7684\u60f3\u6cd5\uff0c\u53ea\u662f\u4e3a\u4e86\u7f16\u5199\u65f6\u95f4\u4e0d\u8db3\u800c\u627e\u7684\u501f\u53e3\u3002\u665a\u5b89\u3002\u2022\u0300.\u032b\u2022\u0301\u2727<\/p>\n<p>\u660e\u5929\u662f VoQn\u3002\u6211\u975e\u5e38\u5174\u594b(\u0e51\u2022\u0300\u3142\u2022\u0301)\u0648\u2727\u3002<\/p>\n<h2>\u86c7\u5c3e\uff08\u4e0d\u662f\u6700\u540e\u7684\uff09<\/h2>\n<h3>\u5728\u6392\u540d\u65b9\u9762\u7684\u5bf9\u540c\u4e00\u5206\u6570\u7684\u8ba8\u8bba\u4e2d\u3002<\/h3>\n<p>\u5728Redis\u4e2d\uff0c\u4ec5\u6839\u636e\u6392\u5e8f\u8fdb\u884c\u6392\u540d\uff0c\u800c\u4e0d\u8003\u8651\u76f8\u540c\u5206\u6570\u6216\u4e0d\u540c\u5206\u6570\u7684\u60c5\u51b5\u3002<br \/>\n\u5373\u4f7f\u67095\u4e2a\u4eba\u5f97\u5230\u4e86\u76f8\u540c\u7684\u5206\u6570\uff0c\u7ed3\u679c\u4e5f\u4f1a\u662f1\u52305\u540d\u3002<br \/>\n\u5982\u679c\u60f3\u8981\u83b7\u53d6\u8003\u8651\u76f8\u540c\u5206\u6570\u7684\u6392\u540d\uff0c\u53ef\u4ee5\u4f7f\u7528zcount\u7b49\u65b9\u6cd5\u8fdb\u884c\u64cd\u4f5c\u3002\uff08\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4f7f\u7528<br \/>\n\u4f7f\u7528zcount\u65b9\u6cd5\u53ef\u4ee5\u67e5\u627e\u5927\u4e8e\u6307\u5b9a\u5206\u6570\u7684\u6210\u5458\u6570\uff0c\u4ece\u800c\u83b7\u5f97\u60f3\u8981\u4e86\u89e3\u7684\u6392\u540d\u7684\u5206\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$score<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">12345<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nv\">$count<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">zCount<\/span><span class=\"p\">(<\/span><span class=\"nv\">$key<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$score<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"+inf\"<\/span><span class=\"p\">);<\/span>\r\n<span class=\"nv\">$rank<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$count<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">1<\/span><span class=\"p\">;<\/span>\r\n<\/code><\/pre>\n<h3>\u914d\u5bf9<\/h3>\n<p>\u8fd9\u662f\u4e00\u79cd\u529f\u80fd\uff0c\u53ef\u4ee5\u5728\u73a9\u5bb6\u4e4b\u95f4\u627e\u5230\u72b6\u6001\u76f8\u8fd1\u7684\u4eba\u3002\u5b83\u4ece\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u5b50\u96c6\u4e2d\u968f\u673a\u62bd\u53d6\u4e00\u90e8\u5206\u3002\u8fd1\u5e74\u6765\uff0c\u8bb8\u591a\u7f51\u7edc\u670d\u52a1\u4e5f\u5728\u505a\u7c7b\u4f3c\u7684\u4e8b\u60c5\u3002\u867d\u7136\u5728MySQL\u7b49\u6570\u636e\u5e93\u4e2d\u4e5f\u53ef\u4ee5\u5b9e\u73b0\uff0c\u4f46\u662f\u53ef\u60b2\u7684\u662f&#8230;\u5728\u6267\u884c\u968f\u673a\u62bd\u53d6\u65f6\uff0c\u67e5\u8be2\u7f13\u5b58\u5c31\u4e0d\u518d\u6709\u6548\uff0c\u6027\u80fd\u4f1a\u663e\u8457\u964d\u4f4e\u3002<\/p>\n<p>\u3067\u306f\u3001\u5c11\u3057\u8907\u96d1\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u304c\u7279\u5b9a\u306e\u30ec\u30d9\u30eb\u304b\u3089\u00b12\u306e\u30d7\u30ec\u30a4\u30e4\u30fc20\u4eba\u3092\u62bd\u51fa\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/ \u30bd\u30fc\u30c8\u6e08\u307f\u30bb\u30c3\u30c8\u3067 score=level member=player_id \u306e\u72b6\u614b\u3067\u683c\u7d0d\u3055\u308c\u3066\u3044\u308bKey<\/span>\r\n<span class=\"nv\">$rank_key<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"player:rank\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u62bd\u51fa\u306e\u5143\u3068\u306a\u308b\u30d7\u30ec\u30a4\u30e4\u30fc\u306e\u30ec\u30d9\u30eb<\/span>\r\n<span class=\"nv\">$target_level<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">10<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u90e8\u5206\u96c6\u5408\u306e\u6761\u4ef6<\/span>\r\n<span class=\"nv\">$level_range<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">2<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nv\">$min<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$target_level<\/span> <span class=\"o\">-<\/span> <span class=\"nv\">$level_range<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nv\">$max<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$target_level<\/span> <span class=\"o\">+<\/span> <span class=\"nv\">$level_range<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"c1\">\/\/ min~max\u306e\u4e2d\u3067\u4e00\u756a\u30ec\u30d9\u30eb\u306e\u4f4e\u3044PlayerId\u3092\u53d6\u5f97\u3059\u308b<\/span>\r\n<span class=\"nv\">$min_lv_player<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">zRangeByScore<\/span><span class=\"p\">(<\/span><span class=\"nv\">$rank_key<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$min<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$max<\/span><span class=\"p\">,[<\/span><span class=\"s2\">\"limit\"<\/span><span class=\"o\">=&gt;<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">,<\/span><span class=\"mi\">1<\/span><span class=\"p\">]]);<\/span>\r\n<span class=\"c1\">\/\/ \u5168\u4f53\u3067\u4f55\u4f4d\u306e\u30ec\u30d9\u30eb\u306a\u306e\u304b\u3092\u77e5\u308b<\/span>\r\n<span class=\"nv\">$min_player_rank<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">zRank<\/span><span class=\"p\">(<\/span><span class=\"nv\">$rank_key<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$min_lv_player<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">]);<\/span>\r\n\r\n<span class=\"c1\">\/\/ min~max\u306e\u4e2d\u3067\u4e00\u756a\u30ec\u30d9\u30eb\u306e\u9ad8\u3044PlayerId\u3092\u53d6\u5f97\u3059\u308b<\/span>\r\n<span class=\"nv\">$max_lv_player<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">zRevRangeByScore<\/span><span class=\"p\">(<\/span><span class=\"nv\">$rank_key<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$max<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$min<\/span><span class=\"p\">,[<\/span><span class=\"s2\">\"limit\"<\/span><span class=\"o\">=&gt;<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">,<\/span><span class=\"mi\">1<\/span><span class=\"p\">]]);<\/span>\r\n<span class=\"c1\">\/\/ \u5168\u4f53\u3067\u4f55\u4f4d\u306e\u30ec\u30d9\u30eb\u306a\u306e\u304b\u3092\u77e5\u308b<\/span>\r\n<span class=\"nv\">$max_player_rank<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">zRank<\/span><span class=\"p\">(<\/span><span class=\"nv\">$rank_key<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$max_lv_player<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">]);<\/span>\r\n\r\n<span class=\"c1\">\/\/ $min_rank~$max_rank\u306b\u5c45\u308b\u306f\u305a\u306a\u306e\u3067\u3001\u305d\u306e\u4e2d\u3067\u30e9\u30f3\u30c0\u30e0\u306arank\u3092\u53d6\u5f97\u3059\u308b<\/span>\r\n<span class=\"nv\">$target_rank<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">rand<\/span><span class=\"p\">(<\/span><span class=\"nv\">$min_player_rank<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$max_player_rank<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u4e00\u6642\u7684\u306b\u53d6\u5f97\u3059\u308b\u30d7\u30ec\u30a4\u30e4\u30fc\u306e\u6570<\/span>\r\n<span class=\"nv\">$tmp_list_count<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">500<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nv\">$hit_player_id_list<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">zrange<\/span><span class=\"p\">(<\/span><span class=\"nv\">$rank_key<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$target_rank<\/span> <span class=\"o\">-<\/span> <span class=\"nv\">$tmp_list_count<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$target_rank<\/span> <span class=\"o\">+<\/span> <span class=\"nv\">$tmp_list_count<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u53d6\u5f97\u3067\u304d\u305f\u306e\u3067\u3053\u306e\u4e2d\u304b\u308920\u4eba\u53d6\u5f97\u3057\u307e\u3057\u3087\u3046\u3002<\/span>\r\n<span class=\"nb\">shuffle<\/span><span class=\"p\">(<\/span><span class=\"nv\">$hit_player_id_list<\/span><span class=\"p\">);<\/span>\r\n<span class=\"nv\">$return<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[];<\/span>\r\n<span class=\"k\">for<\/span><span class=\"p\">(<\/span><span class=\"nv\">$i<\/span><span class=\"o\">=<\/span><span class=\"mi\">0<\/span><span class=\"p\">;<\/span> <span class=\"nv\">$i<\/span><span class=\"o\">&lt;<\/span><span class=\"mi\">20<\/span><span class=\"p\">;<\/span> <span class=\"nv\">$i<\/span><span class=\"o\">++<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nv\">$return<\/span><span class=\"p\">[]<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$hit_player_id_list<\/span><span class=\"p\">[<\/span><span class=\"nv\">$i<\/span><span class=\"p\">];<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5b9f\u969b\u3053\u3053\u306fRedis\u3092\u4f7f\u3063\u3066\u3044\u3066\u3082\u7d50\u69cb\u30b3\u30b9\u30c8\u306e\u9ad8\u3044\u51e6\u7406\u306b\u306a\u308b\u306e\u3067\u3001$hit_player_id_list\u306a\u3069\u3092\u5225\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u3057\u3066\u6301\u305f\u305b\u3066\u304a\u3044\u3066\u3001\u5225\u30d7\u30ed\u30bb\u30b9\u306730\u79d2\u3054\u3068\u306b\u66f4\u65b0\u7b49\u3084\u3063\u3066\u3042\u3052\u308b\u3068\u3044\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u306d\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u6211\u4e5f\u60f3\u8981\u5b9e\u65f6\u5b8c\u6210\uff01\u5bf9\u90a3\u4e9b\u8fd9\u6837\u8bf4\u7684\u4eba\u6765\u8bf4\u3002<\/p>\n<h3>\u4f7f\u7528Lua+EVAL\u8fdb\u884c\u5904\u7406<\/h3>\n<p>\u5982\u679c\u4f7f\u7528\u4e0a\u8ff0\u7684\u5339\u914d\u65b9\u5f0f\uff0c\u5728\u5904\u7406\u8fc7\u7a0b\u4e2d\u65e0\u6cd5\u8003\u8651\u5230\u6392\u540d\u4fe1\u606f\u53d1\u751f\u53d8\u5316\u7684\u60c5\u51b5\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528Lua\u5c06\u591a\u4e2a\u547d\u4ee4\u5408\u5e76\u4e3a\u4e00\u4e2aScriptCommand\u8fdb\u884c\u6267\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">local<\/span> <span class=\"n\">rank_key<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'player:rank'<\/span>\r\n<span class=\"kd\">local<\/span> <span class=\"n\">target_level<\/span> <span class=\"o\">=<\/span> <span class=\"n\">ARGV<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span>\r\n<span class=\"kd\">local<\/span> <span class=\"n\">level_range<\/span> <span class=\"o\">=<\/span> <span class=\"n\">ARGV<\/span><span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">]<\/span>\r\n\r\n<span class=\"kd\">local<\/span> <span class=\"n\">min_lv_player<\/span> <span class=\"o\">=<\/span> <span class=\"n\">redis<\/span><span class=\"p\">.<\/span><span class=\"n\">Call<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"s1\">'zrangebyscore'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">rank_key<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">target_level<\/span> <span class=\"o\">-<\/span> <span class=\"n\">level_range<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">target_level<\/span> <span class=\"o\">+<\/span> <span class=\"n\">level_range<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s1\">'LIMIT'<\/span><span class=\"p\">,<\/span> <span class=\"mi\">0<\/span><span class=\"p\">,<\/span> <span class=\"mi\">1<\/span>\r\n<span class=\"p\">)<\/span>\r\n<span class=\"kd\">local<\/span> <span class=\"n\">min_player_rank<\/span> <span class=\"o\">=<\/span> <span class=\"n\">redis<\/span><span class=\"p\">.<\/span><span class=\"n\">Call<\/span><span class=\"p\">(<\/span><span class=\"s1\">'zrank'<\/span><span class=\"p\">,<\/span> <span class=\"n\">rank_key<\/span><span class=\"p\">,<\/span> <span class=\"n\">min_lv_player<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">])<\/span>\r\n\r\n<span class=\"kd\">local<\/span> <span class=\"n\">max_lv_player<\/span> <span class=\"o\">=<\/span> <span class=\"n\">redis<\/span><span class=\"p\">.<\/span><span class=\"n\">Call<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"s1\">'zrangebyscore'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">rank_key<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">target_level<\/span> <span class=\"o\">+<\/span> <span class=\"n\">level_range<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">target_level<\/span> <span class=\"o\">-<\/span> <span class=\"n\">level_range<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s1\">'LIMIT'<\/span><span class=\"p\">,<\/span> <span class=\"mi\">0<\/span><span class=\"p\">,<\/span> <span class=\"mi\">1<\/span>\r\n<span class=\"p\">)<\/span>\r\n<span class=\"kd\">local<\/span> <span class=\"n\">max_player_rank<\/span> <span class=\"o\">=<\/span> <span class=\"n\">redis<\/span><span class=\"p\">.<\/span><span class=\"n\">Call<\/span><span class=\"p\">(<\/span><span class=\"s1\">'zrank'<\/span><span class=\"p\">,<\/span> <span class=\"n\">rank_key<\/span><span class=\"p\">,<\/span> <span class=\"n\">max_lv_player<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">])<\/span>\r\n\r\n<span class=\"kd\">local<\/span> <span class=\"n\">target_rank<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">math.random<\/span><span class=\"p\">(<\/span><span class=\"n\">min_player_rank<\/span><span class=\"p\">,<\/span> <span class=\"n\">max_player_rank<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"kd\">local<\/span> <span class=\"n\">tmp_list_count<\/span> <span class=\"o\">=<\/span> <span class=\"n\">ARGV<\/span><span class=\"p\">[<\/span><span class=\"mi\">3<\/span><span class=\"p\">]<\/span>\r\n<span class=\"k\">return<\/span> <span class=\"n\">redis<\/span><span class=\"p\">.<\/span><span class=\"n\">Call<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"n\">rank_key<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">target_rank<\/span> <span class=\"o\">-<\/span> <span class=\"n\">tmp_list_count<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">target_rank<\/span> <span class=\"o\">+<\/span> <span class=\"n\">tmp_list_count<\/span>\r\n<span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u5c06\u4ee5\u6b64\u65b9\u5f0f\u7f16\u5199\u7684Lua\u811a\u672c\u4f20\u9012\u7ed9Redis\u7684EVAL\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$lua_script<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">getLuaScript<\/span><span class=\"p\">();<\/span> <span class=\"c1\">\/\/Lua:matching\u306e\u5185\u5bb9\u3092\u8fd4\u3059\u95a2\u6570<\/span>\r\n<span class=\"nv\">$params<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"nv\">$target_level<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nv\">$level_range<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nv\">$tmp_list_count<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">];<\/span>\r\n<span class=\"nv\">$hit_player_id_list<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$redis<\/span><span class=\"o\">-&gt;<\/span><span class=\"k\">eval<\/span><span class=\"p\">(<\/span><span class=\"nv\">$lua_script<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$params<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u5728EVAL\u4e2d\u6267\u884c\u7684\u811a\u672c\u4f1a\u88ab\u4fdd\u5b58\u5728Redis\u4e2d\uff0c\u6240\u4ee5\u5c06\u53ef\u53d8\u7684\u503c\u901a\u8fc7ARGV\u4f20\u9012\u4f1a\u66f4\u4e3a\u7ecf\u6d4e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u7bc7\u6587\u7ae0\u662fKLab Advent Calendar 2015\u7684\u7b2c22\u5929\u7684\u6587\u7ae0\u3002 \u4f60\u597d\u3002\u4f5c\u4e3aKLab\u516c\u53f8\uff0c\u8fd9\u662f\u6211 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-34149","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4eca\u5929\u5f00\u59cb\u5b66\u4e60Redis~\u4eceSQL\u8fc7\u6e21\u5230Redis~ - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4eca\u5929\u5f00\u59cb\u5b66\u4e60redis\u4ecesql\u8fc7\u6e21\u5230redis\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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