{"id":175235,"date":"2024-11-08T04:10:17","date_gmt":"2024-11-07T20:10:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175235\/"},"modified":"2024-11-08T04:10:18","modified_gmt":"2024-11-07T20:10:18","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8list%e7%8d%b2%e5%8f%96%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e5%ad%97%e6%ae%b5-list%e7%8d%b2%e5%8f%96%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e5%ad%97%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175235\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528list\u7372\u53d6\u6578\u64da\u5eab\u8868\u5b57\u6bb5 (list\u7372\u53d6\u6578\u64da\u5eab\u8868\u5b57\u6bb5)"},"content":{"rendered":"

\u5982\u4f55\u4f7f\u7528list\u7372\u53d6\u6578\u64da\u5eab\u8868\u5b57\u6bb5<\/h1>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7372\u53d6\u8868\u5b57\u6bb5\u4fe1\u606f\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u6b65\u3002\u7121\u8ad6\u662f\u9032\u884c\u6578\u64da\u5206\u6790\u3001\u6578\u64da\u9077\u79fb\uff0c\u9084\u662f\u958b\u767c\u61c9\u7528\u7a0b\u5e8f\uff0c\u4e86\u89e3\u6578\u64da\u5eab\u8868\u7684\u7d50\u69cb\u90fd\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528list\u4f86\u7372\u53d6\u6578\u64da\u5eab\u8868\u5b57\u6bb5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n

\u4ec0\u9ebc\u662flist\uff1f<\/h2>\n

\u5728\u7de8\u7a0b\u4e2d\uff0clist\u901a\u5e38\u6307\u7684\u662f\u4e00\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u7528\u65bc\u5b58\u5132\u4e00\u7cfb\u5217\u7684\u5143\u7d20\u3002\u5728Python\u7b49\u7de8\u7a0b\u8a9e\u8a00\u4e2d\uff0clist\u662f\u4e00\u7a2e\u975e\u5e38\u5e38\u7528\u7684\u6578\u64da\u985e\u578b\uff0c\u53ef\u4ee5\u7528\u4f86\u5b58\u5132\u548c\u64cd\u4f5c\u6578\u64da\u3002\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\uff0clist\u53ef\u4ee5\u7528\u4f86\u5b58\u5132\u5f9e\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u7684\u5b57\u6bb5\u540d\u7a31\u3002<\/p>\n

\u7372\u53d6\u6578\u64da\u5eab\u8868\u5b57\u6bb5\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n

\u7372\u53d6\u6578\u64da\u5eab\u8868\u5b57\u6bb5\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n

    \n
  1. \u9023\u63a5\u5230\u6578\u64da\u5eab<\/li>\n
  2. \u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u8868\u7d50\u69cb<\/li>\n
  3. \u5c07\u7d50\u679c\u5b58\u5132\u5230list\u4e2d<\/li>\n
  4. \u8655\u7406\u548c\u986f\u793a\u5b57\u6bb5\u4fe1\u606f<\/li>\n<\/ol>\n

    \u793a\u4f8b\uff1a\u4f7f\u7528Python\u548cMySQL\u7372\u53d6\u8868\u5b57\u6bb5<\/h2>\n

    \u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Python\u548cMySQL\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u7372\u53d6\u6578\u64da\u5eab\u8868\u7684\u5b57\u6bb5\u540d\u7a31\u4e26\u5c07\u5176\u5b58\u5132\u5230list\u4e2d\u3002<\/p>\n

    import mysql.connector\n\n# \u9023\u63a5\u5230\u6578\u64da\u5eab\ndb = mysql.connector.connect(\n    host=\"localhost\",\n    user=\"yourusername\",\n    password=\"yourpassword\",\n    database=\"yourdatabase\"\n)\n\n# \u5275\u5efa\u6e38\u6a19\u5c0d\u8c61\ncursor = db.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u8868\u7d50\u69cb\ncursor.execute(\"SHOW COLUMNS FROM yourtable\")\n\n# \u5c07\u5b57\u6bb5\u540d\u7a31\u5b58\u5132\u5230list\u4e2d\nfields = []\nfor column in cursor.fetchall():\n    fields.append(column[0])\n\n# \u986f\u793a\u5b57\u6bb5\u540d\u7a31\nprint(\"\u8868\u5b57\u6bb5\u540d\u7a31:\", fields)\n\n# \u95dc\u9589\u6e38\u6a19\u548c\u6578\u64da\u5eab\u9023\u63a5\ncursor.close()\ndb.close()\n<\/code><\/pre>\n
    \u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\uff0c\u7136\u5f8c\u4f7f\u7528SQL\u8a9e\u53e5\u201cSHOW COLUMNS FROM yourtable\u201d\u4f86\u7372\u53d6\u6307\u5b9a\u8868\u7684\u5b57\u6bb5\u4fe1\u606f\u3002\u63a5\u8457\uff0c\u6211\u5011\u5c07\u6bcf\u500b\u5b57\u6bb5\u540d\u7a31\u6dfb\u52a0\u5230list\u4e2d\uff0c\u6700\u5f8c\u6253\u5370\u51fa\u4f86\u3002<\/p>\n
    \u4f7f\u7528\u5176\u4ed6\u6578\u64da\u5eab\u7cfb\u7d71<\/h2>\n
    \u9664\u4e86MySQL\uff0c\u5176\u4ed6\u6578\u64da\u5eab\u7cfb\u7d71\u5982PostgreSQL\u3001SQLite\u7b49\u4e5f\u53ef\u4ee5\u4f7f\u7528\u985e\u4f3c\u7684\u65b9\u6cd5\u4f86\u7372\u53d6\u8868\u5b57\u6bb5\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PostgreSQL\u7684\u793a\u4f8b\uff1a<\/p>\n
    import psycopg2\n\n# \u9023\u63a5\u5230\u6578\u64da\u5eab\nconn = psycopg2.connect(\n    dbname=\"yourdatabase\",\n    user=\"yourusername\",\n    password=\"yourpassword\",\n    host=\"localhost\"\n)\n\n# \u5275\u5efa\u6e38\u6a19\u5c0d\u8c61\ncur = conn.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u8868\u7d50\u69cb\ncur.execute(\"SELECT column_name FROM information_schema.columns WHERE table_name='yourtable'\")\n\n# \u5c07\u5b57\u6bb5\u540d\u7a31\u5b58\u5132\u5230list\u4e2d\nfields = [row[0] for row in cur.fetchall()]\n\n# \u986f\u793a\u5b57\u6bb5\u540d\u7a31\nprint(\"\u8868\u5b57\u6bb5\u540d\u7a31:\", fields)\n\n# \u95dc\u9589\u6e38\u6a19\u548c\u6578\u64da\u5eab\u9023\u63a5\ncur.close()\nconn.close()\n<\/code><\/pre>\n
    \u5728\u9019\u500bPostgreSQL\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u67e5\u8a62\u4e86information_schema.columns\u4f86\u7372\u53d6\u8868\u7684\u5b57\u6bb5\u540d\u7a31\uff0c\u4e26\u5c07\u5176\u5b58\u5132\u5230list\u4e2d\u3002<\/p>\n
    \u7e3d\u7d50<\/h2>\n
    \u901a\u904e\u4f7f\u7528list\u4f86\u7372\u53d6\u6578\u64da\u5eab\u8868\u5b57\u6bb5\uff0c\u6211\u5011\u53ef\u4ee5\u65b9\u4fbf\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u3002\u7121\u8ad6\u662f\u4f7f\u7528MySQL\u9084\u662f\u5176\u4ed6\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u9019\u7a2e\u65b9\u6cd5\u90fd\u80fd\u6709\u6548\u5730\u5e6b\u52a9\u958b\u767c\u8005\u7372\u53d6\u6240\u9700\u7684\u5b57\u6bb5\u4fe1\u606f\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n
    \u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u4e86\u89e3\u5982\u4f55\u4f7f\u7528list\u5f9e\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u8868\u5b57\u6bb5\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\u548c\u67e5\u8a62\u904e\u7a0b\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\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-175235","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175235","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=175235"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175235\/revisions"}],"predecessor-version":[{"id":175236,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175235\/revisions\/175236"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}