{"id":204128,"date":"2025-05-29T13:27:34","date_gmt":"2025-05-29T05:27:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204128\/"},"modified":"2025-05-29T13:27:34","modified_gmt":"2025-05-29T05:27:34","slug":"%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3-python-%e4%b8%ad%e7%9a%84%e6%96%b0%e6%a8%a1%e5%9d%97-dbmsqlite3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204128\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684\u65b0\u6a21\u5757 – dbmsqlite3"},"content":{"rendered":"

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

\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684\u65b0\u6a21\u5757 – dbmsqlite3<\/h1>\n

\u76ee\u524d\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e\u6587\u7ae0<\/span>\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587\u300a\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684\u65b0\u6a21\u5757 – dbmsqlite3\u300b<\/span>\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60\u6587\u7ae0<\/span>\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~<\/p>\n

<\/p>\n

python \u4e2d\u7684 dbm \u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u5355\u9ad8\u6548\u7684\u63a5\u53e3\u6765\u521b\u5efa\u548c\u64cd\u4f5c\u6301\u4e45\u952e\u503c\u5b58\u50a8\u3002\u5b83\u5141\u8bb8\u4f7f\u7528\u552f\u4e00\u952e\u5b58\u50a8\u548c\u68c0\u7d22\u6570\u636e\uff0c\u5e76\u4e14\u901a\u5e38\u7528\u4e8e\u7f13\u5b58\u3001\u4f1a\u8bdd\u7ba1\u7406\u548c\u5176\u4ed6\u7c7b\u4f3c\u4efb\u52a1\u3002<\/p>\n

\u968f\u7740 python 3.13.0 \u7684\u5f15\u5165\uff0cdbm \u7cfb\u5217\u4e2d\u6dfb\u52a0\u4e86\u4e00\u4e2a\u65b0\u6a21\u5757 \u2013 dbm.sqlite3\u3002\u8be5\u6a21\u5757\u5229\u7528\u5f3a\u5927\u7684 sqlite \u6570\u636e\u5e93\u5f15\u64ce\u4e3a dbm \u6a21\u5757\u63d0\u4f9b\u540e\u7aef\uff0c\u5141\u8bb8\u7528\u6237\u5728 sqlite \u6570\u636e\u5e93\u4e2d\u5b58\u50a8\u548c\u68c0\u7d22\u6570\u636e\u3002\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55 sqlite \u6d4f\u89c8\u5668\u6216\u5185\u7f6e sqlite cli\uff08\u547d\u4ee4\u884c\u754c\u9762\uff09\u6253\u5f00\u548c\u4fee\u6539\u751f\u6210\u7684\u6587\u4ef6\u3002<\/p>\n

\u4f7f\u7528 dbm.sqlite3 \u7684\u4e3b\u8981\u4f18\u70b9\u662f\uff0c\u4e0e\u5176\u4ed6\u540e\u7aef\u9009\u9879\uff08\u4f8b\u5982 dbm.ndbm \u6216 dbm.gnu\uff09\u76f8\u6bd4\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u8fd9\u662f\u7531\u4e8e\u5e95\u5c42 sqlite \u5f15\u64ce\u9488\u5bf9\u901f\u5ea6\u548c\u53ef\u9760\u6027\u8fdb\u884c\u4e86\u4f18\u5316\u3002<\/p>\n

\u8981\u4f7f\u7528 dbm.sqlite3\uff0c\u60a8\u9700\u8981\u4f7f\u7528\u4ee5\u4e0b\u8bed\u53e5\u5c06\u6a21\u5757\u5bfc\u5165\u5230 python \u811a\u672c\u4e2d\uff1a<\/p>\n

import dbm.sqlite3\n<\/pre>\n
\u63a5\u4e0b\u6765\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 open() \u65b9\u6cd5\u6253\u5f00 sqlite \u6570\u636e\u5e93\uff0c\u8be5\u65b9\u6cd5\u63a5\u53d7\u4ee5\u4e0b\u53c2\u6570\uff1a<\/p>\n
    \n
  1. \n
    filename \u2013 \u8981\u6253\u5f00\u7684\u6570\u636e\u5e93\u6587\u4ef6\u7684\u8def\u5f84\u3002<\/p>\n<\/li>\n
  2. \n
    flag \u2013 \u6307\u5b9a\u6253\u5f00\u6570\u636e\u5e93\u7684\u6a21\u5f0f\u3002\u53ef\u7528\u7684\u9009\u9879\u6709\uff1a<\/p>\n<\/li>\n<\/ol>\n
      \n
    •  ‘r’\uff08\u9ed8\u8ba4\uff09\uff1a\u6253\u5f00\u73b0\u6709\u6570\u636e\u5e93\u4ee5\u4f9b\u53ea\u8bfb\u3002<\/li>\n
    •  ‘w’\uff1a\u6253\u5f00\u73b0\u6709\u6570\u636e\u5e93\u8fdb\u884c\u8bfb\u5199\u3002<\/li>\n
    •  ‘c’\uff1a\u6253\u5f00\u6570\u636e\u5e93\u8fdb\u884c\u8bfb\u5199\uff0c\u5982\u679c\u5c1a\u4e0d\u5b58\u5728\u5219\u521b\u5efa\u5b83\u3002<\/li>\n
    •  ‘n’\uff1a\u59cb\u7ec8\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7a7a\u6570\u636e\u5e93\uff0c\u6253\u5f00\u4ee5\u4f9b\u8bfb\u53d6\u548c\u5199\u5165\u3002<\/li>\n<\/ul>\n
        \n
      1.  mode \u2013 \u6587\u4ef6\u7684 unix \u6587\u4ef6\u8bbf\u95ee\u6a21\u5f0f\uff08\u9ed8\u8ba4\uff1a\u516b\u8fdb\u5236 0o666\uff09\uff0c\u4ec5\u5728\u5fc5\u987b\u521b\u5efa\u6570\u636e\u5e93\u65f6\u4f7f\u7528\u3002<\/li>\n<\/ol>\n
        \u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528 dbm.sqlite3 \u6253\u5f00 sqlite \u6570\u636e\u5e93\u7684\u793a\u4f8b\uff1a<\/p>\n
        db = dbm.sqlite3.open(\"mydatabase.db\", flag=\"c\") \n<\/pre>\n
        open() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u884c\u4e3a\u7c7b\u4f3c\u4e8e\u6620\u5c04\u7684\u5bf9\u8c61\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u5177\u6709 get() \u548c set() \u7b49\u65b9\u6cd5\uff0c\u5206\u522b\u7528\u4e8e\u68c0\u7d22\u548c\u5b58\u50a8\u6570\u636e\u3002\u5b83\u8fd8\u652f\u6301\u7528\u4e8e\u5173\u95ed\u6570\u636e\u5e93\u7684 close() \u65b9\u6cd5\u548c\u7528\u4e8e\u7ba1\u7406\u6570\u636e\u5e93\u4e0a\u4e0b\u6587\u7684 with \u8bed\u53e5\u3002<\/p>\n
        \u60a8\u8fd8\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528connection()\u65b9\u6cd5\u8bbf\u95eesqlite\u8fde\u63a5\u5bf9\u8c61\uff0c\u76f4\u63a5\u4f7f\u7528sql\u8bed\u53e5\u64cd\u4f5c\u6570\u636e\u5e93\uff1a<\/p>\n
        db = dbm.sqlite3.open(\"mydatabase.db\", flag=\"w\") \nconn = db.connection()\nconn.execute(\"CREATE TABLE IF NOT EXISTS fruits (id INTEGER PRIMARY KEY, name TEXT, color TEXT)\")\nconn.execute(\"INSERT INTO fruits VALUES (1, 'Apple', 'Red')\")\nconn.commit() # save changes\n<\/pre>\n
        \u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4ee5\u5199\u5165\u6a21\u5f0f\u6253\u5f00\u6570\u636e\u5e93\uff0c\u5e76\u521b\u5efa\u4e00\u4e2a\u540d\u4e3afruits\u7684\u8868\uff0c\u8be5\u8868\u5305\u542b\u4e09\u5217\u2014\u2014id\u3001name\u548ccolor\u3002\u7136\u540e\u6211\u4eec\u5c06\u4e00\u6761\u8bb0\u5f55\u63d2\u5165\u8868\u4e2d\u5e76\u4f7f\u7528 commit() \u65b9\u6cd5\u63d0\u4ea4\u66f4\u6539\u3002<\/p>\n
        \u603b\u4e4b\uff0cpython 3.13.0 \u4e2d\u7684 dbm.sqlite3 \u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u79cd\u4f7f\u7528 sqlite \u6570\u636e\u5e93\u5b58\u50a8\u548c\u68c0\u7d22\u6570\u636e\u7684\u4fbf\u6377\u9ad8\u6548\u7684\u65b9\u6cd5\u3002\u8fd9\u4e3a\u5f00\u53d1\u4eba\u5458\u5728\u6570\u636e\u7ba1\u7406\u548c\u6301\u4e45\u6027\u65b9\u9762\u5f00\u8f9f\u4e86\u5e7f\u6cdb\u7684\u53ef\u80fd\u6027\u3002<\/p>\n
        \u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300a\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684\u65b0\u6a21\u5757 – dbmsqlite3\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n
              \u7248\u672c\u58f0\u660e \u672c\u6587\u8f6c\u8f7d\u4e8e\uff1adev.to \u5982\u6709\u4fb5\u72af\uff0c\u8bf7\u8054\u7cfb\u5220\u9664<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684\u65b0\u6a21...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204128","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204128","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=204128"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204128\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}