{"id":194251,"date":"2024-11-13T05:06:23","date_gmt":"2024-11-12T21:06:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194251\/"},"modified":"2024-11-13T05:06:24","modified_gmt":"2024-11-12T21:06:24","slug":"%e4%bb%a5redis%e5%af%a6%e7%8f%be%e5%a4%a7%e8%a6%8f%e6%a8%a1%e6%bc%a2%e6%98%8e%e9%87%8d%e9%87%8f%e8%a8%88%e7%ae%97%ef%bc%88redis%e8%a8%88%e7%ae%97%e6%bc%a2%e6%98%8e%e9%87%8d%e9%87%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194251\/","title":{"rendered":"\u4ee5Redis\u5be6\u73fe\u5927\u898f\u6a21\u6f22\u660e\u91cd\u91cf\u8a08\u7b97\uff08redis\u8a08\u7b97\u6f22\u660e\u91cd\u91cf\uff09"},"content":{"rendered":"

\u4ee5Redis\u5be6\u73fe\u5927\u898f\u6a21\u6f22\u660e\u91cd\u91cf\u8a08\u7b97<\/h1>\n

\u6f22\u660e\u91cd\u91cf\uff08Hamming Weight\uff09\u662f\u6307\u4e00\u500b\u4e8c\u9032\u5236\u6578\u4e2d1\u7684\u500b\u6578\u3002\u5728\u8a31\u591a\u8a08\u7b97\u6a5f\u79d1\u5b78\u548c\u4fe1\u606f\u8ad6\u7684\u61c9\u7528\u4e2d\uff0c\u6f22\u660e\u91cd\u91cf\u7684\u8a08\u7b97\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u5c24\u5176\u662f\u5728\u6578\u64da\u58d3\u7e2e\u3001\u932f\u8aa4\u6aa2\u6e2c\u548c\u52a0\u5bc6\u7b97\u6cd5\u4e2d\u3002\u96a8\u8457\u5927\u6578\u64da\u6642\u4ee3\u7684\u4f86\u81e8\uff0c\u5982\u4f55\u9ad8\u6548\u5730\u8a08\u7b97\u5927\u898f\u6a21\u6578\u64da\u96c6\u7684\u6f22\u660e\u91cd\u91cf\u6210\u70ba\u4e86\u4e00\u500b\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u7d50\u69cb\u548c\u64cd\u4f5c\uff0c\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002<\/p>\n

Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u5167\u5b58\u5b58\u53d6\u7279\u6027\uff0cRedis\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u9700\u8981\u5feb\u901f\u8b80\u5beb\u7684\u5834\u666f\u3002\u5176\u652f\u6301\u7684\u539f\u5b50\u64cd\u4f5c\u548c\u4e8b\u52d9\u529f\u80fd\u4f7f\u5f97\u5b83\u5728\u8655\u7406\u4e26\u767c\u8acb\u6c42\u6642\u8868\u73fe\u51fa\u8272\u3002<\/p>\n

\u6f22\u660e\u91cd\u91cf\u7684\u8a08\u7b97\u65b9\u6cd5<\/h2>\n

\u8a08\u7b97\u6f22\u660e\u91cd\u91cf\u7684\u57fa\u672c\u65b9\u6cd5\u662f\u904d\u6b77\u4e8c\u9032\u5236\u6578\u7684\u6bcf\u4e00\u4f4d\uff0c\u7d71\u8a081\u7684\u500b\u6578\u3002\u5c0d\u65bc\u4e00\u500b\u6574\u6578n\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u7684Python\u4ee3\u78bc\u4f86\u8a08\u7b97\u5176\u6f22\u660e\u91cd\u91cf\uff1a<\/p>\n

def hamming_weight(n):\n    count = 0\n    while n:\n        count += n & 1\n        n >>= 1\n    return count\n<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u901a\u904e\u4f4d\u904b\u7b97\u4f86\u9ad8\u6548\u5730\u8a08\u7b97\u6f22\u660e\u91cd\u91cf\u3002\u5c0d\u65bc\u5927\u898f\u6a21\u6578\u64da\u96c6\uff0c\u9019\u7a2e\u65b9\u6cd5\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\uff0c\u56e0\u6b64\u9700\u8981\u8003\u616e\u4f7f\u7528Redis\u4f86\u9032\u884c\u5206\u4f48\u5f0f\u8a08\u7b97\u3002<\/p>\n
\u4f7f\u7528Redis\u9032\u884c\u5927\u898f\u6a21\u6f22\u660e\u91cd\u91cf\u8a08\u7b97<\/h2>\n
\u5728Redis\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u5229\u7528\u5176\u96c6\u5408\u548c\u8a08\u6578\u5668\u7684\u7279\u6027\u4f86\u5be6\u73fe\u6f22\u660e\u91cd\u91cf\u7684\u8a08\u7b97\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u6b65\u9a5f\u4f86\u5be6\u73fe\u9019\u4e00\u904e\u7a0b\uff1a<\/p>\n
    \n
  1. \u6578\u64da\u5b58\u5132\uff1a<\/strong>\u5c07\u9700\u8981\u8a08\u7b97\u7684\u4e8c\u9032\u5236\u6578\u5b58\u5132\u5728Redis\u7684\u96c6\u5408\u4e2d\u3002<\/li>\n
  2. \u8a08\u7b97\u6f22\u660e\u91cd\u91cf\uff1a<\/strong>\u4f7f\u7528Redis\u7684Lua\u8173\u672c\u4f86\u904d\u6b77\u96c6\u5408\u4e2d\u7684\u6bcf\u4e00\u500b\u5143\u7d20\uff0c\u8a08\u7b97\u5176\u6f22\u660e\u91cd\u91cf\u3002<\/li>\n
  3. \u7d50\u679c\u5b58\u5132\uff1a<\/strong>\u5c07\u8a08\u7b97\u7d50\u679c\u5b58\u5132\u56deRedis\u4e2d\uff0c\u4ee5\u4fbf\u5f8c\u7e8c\u67e5\u8a62\u3002<\/li>\n<\/ol>\n
    \u793a\u4f8b\u4ee3\u78bc<\/h3>\n
    \u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Redis\u548cLua\u8173\u672c\u8a08\u7b97\u6f22\u660e\u91cd\u91cf\u7684\u793a\u4f8b\uff1a<\/p>\n
    import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u5047\u8a2d\u6211\u5011\u5df2\u7d93\u5c07\u4e8c\u9032\u5236\u6578\u5b58\u5132\u5728Redis\u96c6\u5408\u4e2d\nbinary_numbers = ['1101', '1010', '1111', '0001']\nfor num in binary_numbers:\n    r.sadd('binary_set', num)\n\n# Lua\u8173\u672c\u8a08\u7b97\u6f22\u660e\u91cd\u91cf\nlua_script = \"\"\"\nlocal count = 0\nlocal numbers = redis.call('SMEMBERS', KEYS[1])\nfor i=1, #numbers do\n    local n = tonumber(numbers[i], 2)\n    while n > 0 do\n        count = count + (n % 2)\n        n = math.floor(n \/ 2)\n    end\nend\nreturn count\n\"\"\"\n\n# \u57f7\u884cLua\u8173\u672c\nhamming_weight = r.eval(lua_script, 1, 'binary_set')\nprint(\"\u6f22\u660e\u91cd\u91cf:\", hamming_weight)\n<\/code><\/pre>\n
    \u6027\u80fd\u8003\u91cf<\/h2>\n
    \u4f7f\u7528Redis\u9032\u884c\u6f22\u660e\u91cd\u91cf\u8a08\u7b97\u7684\u512a\u52e2\u5728\u65bc\u5176\u9ad8\u6548\u7684\u5167\u5b58\u5b58\u53d6\u548c\u4e26\u884c\u8655\u7406\u80fd\u529b\u3002\u901a\u904e\u5c07\u6578\u64da\u5206\u4f48\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e2d\uff0c\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u9ad8\u8a08\u7b97\u6027\u80fd\u3002\u6b64\u5916\uff0cRedis\u7684\u6301\u4e45\u5316\u529f\u80fd\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\uff0c\u907f\u514d\u56e0\u7cfb\u7d71\u6545\u969c\u800c\u5c0e\u81f4\u7684\u6578\u64da\u4e1f\u5931\u3002<\/p>\n
    \u7d50\u8ad6<\/h2>\n
    \u5728\u5927\u6578\u64da\u74b0\u5883\u4e2d\uff0c\u4f7f\u7528Redis\u4f86\u8a08\u7b97\u6f22\u660e\u91cd\u91cf\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u53ef\u64f4\u5c55\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u5408\u7406\u7684\u6578\u64da\u7d50\u69cb\u548c\u64cd\u4f5c\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u8a08\u7b97\u6027\u80fd\uff0c\u6eff\u8db3\u73fe\u4ee3\u61c9\u7528\u7684\u9700\u6c42\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u4e8c\u9032\u5236\u6578\u64da\u7684\u61c9\u7528\uff0cRedis\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n
    \u7e3d\u7d50<\/h2>\n
    \u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u9078\u64c7\u5408\u9069\u7684\u6280\u8853\u4f86\u8655\u7406\u5927\u898f\u6a21\u6578\u64da\u81f3\u95dc\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u80fd\u5920\u6709\u6548\u5730\u652f\u6301\u6f22\u660e\u91cd\u91cf\u7684\u8a08\u7b97\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5229\u7528\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72Redis\uff0c\u6216\u662f\u5c0b\u627e\u5176\u4ed6\u7684\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u4f7f\u7528Redis\u9ad8\u6548\u8a08\u7b97\u5927\u898f\u6a21\u6578\u64da\u7684\u6f22\u660e\u91cd\u91cf\uff0c\u63d0\u5347\u6027\u80fd\u8207\u64f4\u5c55\u6027\uff0c\u9069\u5408\u5927\u6578\u64da\u8655\u7406\u9700\u6c42\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-194251","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194251","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=194251"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194251\/revisions"}],"predecessor-version":[{"id":194252,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194251\/revisions\/194252"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}