{"id":97028,"date":"2024-10-20T14:24:19","date_gmt":"2024-10-20T06:24:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97028\/"},"modified":"2024-10-20T14:24:20","modified_gmt":"2024-10-20T06:24:20","slug":"python%e5%af%a6%e7%8f%be%e9%97%9c%e4%bf%82%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e6%96%b9%e6%b3%95-python-%e9%97%9c%e4%bf%82%e6%95%b8%e6%93%9a%e5%ba%ab-%e9%80%a3%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97028\/","title":{"rendered":"Python\u5be6\u73fe\u95dc\u4fc2\u6578\u64da\u5eab\u9023\u63a5\u7684\u65b9\u6cd5 (python \u95dc\u4fc2\u6578\u64da\u5eab \u9023\u63a5)"},"content":{"rendered":"<h1 id=\"python%e5%af%a6%e7%8f%be%e9%97%9c%e4%bf%82%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e6%96%b9%e6%b3%95-RvdIBCMOuA\">Python\u5be6\u73fe\u95dc\u4fc2\u6578\u64da\u5eab\u9023\u63a5\u7684\u65b9\u6cd5<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cPython\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u4e14\u6613\u65bc\u5b78\u7fd2\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6578\u64da\u5206\u6790\u3001\u7db2\u9801\u958b\u767c\u53ca\u81ea\u52d5\u5316\u7b49\u9818\u57df\u3002\u8207\u95dc\u4fc2\u6578\u64da\u5eab\u7684\u9023\u63a5\u662fPython\u958b\u767c\u4e2d\u4e00\u500b\u91cd\u8981\u7684\u7d44\u6210\u90e8\u5206\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Python\u9023\u63a5\u4e0d\u540c\u985e\u578b\u7684\u95dc\u4fc2\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"1-%e5%ae%89%e8%a3%9d%e5%bf%85%e8%a6%81%e7%9a%84%e5%ba%ab-RvdIBCMOuA\">1. \u5b89\u88dd\u5fc5\u8981\u7684\u5eab<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5b89\u88dd\u76f8\u61c9\u7684\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u3002Python\u652f\u6301\u591a\u7a2e\u95dc\u4fc2\u6578\u64da\u5eab\uff0c\u5305\u62ecMySQL\u3001PostgreSQL\u3001SQLite\u7b49\u3002\u4ee5\u4e0b\u662f\u5b89\u88dd\u9019\u4e9b\u5eab\u7684\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li>MySQL: <code>pip install mysql-connector-python<\/code><\/li>\n<li>PostgreSQL: <code>pip install psycopg2<\/code><\/li>\n<li>SQLite: <code>pip install sqlite3<\/code>\uff08\u901a\u5e38\u96a8Python\u81ea\u5e36\uff09<\/code><\/li>\n<\/ul>\n<h2 id=\"2-%e9%80%a3%e6%8e%a5mysql%e6%95%b8%e6%93%9a%e5%ba%ab-RvdIBCMOuA\">2. \u9023\u63a5MySQL\u6578\u64da\u5eab<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528Python\u9023\u63a5MySQL\u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import mysql.connector\n\n# \u5efa\u7acb\u9023\u63a5\nconn = mysql.connector.connect(\n    host=\"localhost\",\n    user=\"your_username\",\n    password=\"your_password\",\n    database=\"your_database\"\n)\n\n# \u5275\u5efa\u6e38\u6a19\ncursor = conn.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\ncursor.execute(\"SELECT * FROM your_table\")\n\n# \u7372\u53d6\u7d50\u679c\nresults = cursor.fetchall()\nfor row in results:\n    print(row)\n\n# \u95dc\u9589\u9023\u63a5\ncursor.close()\nconn.close()\n<\/code><\/pre>\n<h2 id=\"3-%e9%80%a3%e6%8e%a5postgresql%e6%95%b8%e6%93%9a%e5%ba%ab-RvdIBCMOuA\">3. \u9023\u63a5PostgreSQL\u6578\u64da\u5eab<\/h2>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u4f86\u770b\u770b\u5982\u4f55\u9023\u63a5PostgreSQL\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>import psycopg2\n\n# \u5efa\u7acb\u9023\u63a5\nconn = psycopg2.connect(\n    host=\"localhost\",\n    database=\"your_database\",\n    user=\"your_username\",\n    password=\"your_password\"\n)\n\n# \u5275\u5efa\u6e38\u6a19\ncursor = conn.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\ncursor.execute(\"SELECT * FROM your_table\")\n\n# \u7372\u53d6\u7d50\u679c\nresults = cursor.fetchall()\nfor row in results:\n    print(row)\n\n# \u95dc\u9589\u9023\u63a5\ncursor.close()\nconn.close()\n<\/code><\/pre>\n<h2 id=\"4-%e9%80%a3%e6%8e%a5sqlite%e6%95%b8%e6%93%9a%e5%ba%ab-RvdIBCMOuA\">4. \u9023\u63a5SQLite\u6578\u64da\u5eab<\/h2>\n<p>\u6700\u5f8c\uff0c\u6211\u5011\u4f86\u770b\u770b\u5982\u4f55\u9023\u63a5SQLite\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>import sqlite3\n\n# \u5efa\u7acb\u9023\u63a5\nconn = sqlite3.connect('your_database.db')\n\n# \u5275\u5efa\u6e38\u6a19\ncursor = conn.cursor()\n\n# \u57f7\u884c\u67e5\u8a62\ncursor.execute(\"SELECT * FROM your_table\")\n\n# \u7372\u53d6\u7d50\u679c\nresults = cursor.fetchall()\nfor row in results:\n    print(row)\n\n# \u95dc\u9589\u9023\u63a5\ncursor.close()\nconn.close()\n<\/code><\/pre>\n<h2 id=\"5-%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-RvdIBCMOuA\">5. \u932f\u8aa4\u8655\u7406<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u932f\u8aa4\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528try-except\u8a9e\u53e5\u4f86\u6355\u7372\u7570\u5e38\uff0c\u78ba\u4fdd\u7a0b\u5e8f\u7684\u7a69\u5b9a\u6027\u3002\u4ee5\u4e0b\u662f\u932f\u8aa4\u8655\u7406\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>try:\n    # \u5617\u8a66\u5efa\u7acb\u9023\u63a5\n    conn = mysql.connector.connect(\n        host=\"localhost\",\n        user=\"your_username\",\n        password=\"your_password\",\n        database=\"your_database\"\n    )\nexcept mysql.connector.Error as err:\n    print(f\"Error: {err}\")\nfinally:\n    if conn:\n        conn.close()\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-RvdIBCMOuA\">\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528Python\u9023\u63a5\u4e0d\u540c\u985e\u578b\u7684\u95dc\u4fc2\u6578\u64da\u5eab\uff0c\u5305\u62ecMySQL\u3001PostgreSQL\u548cSQLite\u3002\u901a\u904e\u5b89\u88dd\u76f8\u61c9\u7684\u5eab\u4e26\u4f7f\u7528\u7c21\u55ae\u7684\u4ee3\u78bc\u793a\u4f8b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u7121\u8ad6\u662f\u9032\u884c\u6578\u64da\u67e5\u8a62\u9084\u662f\u6578\u64da\u64cd\u4f5c\uff0cPython\u90fd\u63d0\u4f9b\u4e86\u9748\u6d3b\u4e14\u5f37\u5927\u7684\u5de5\u5177\u4f86\u652f\u6301\u9019\u4e9b\u9700\u6c42\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684Python\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Python\u4e2d\u5be6\u73fe\u95dc\u4fc2\u6578\u64da\u5eab\u9023\u63a5\u7684\u65b9\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528\u5404\u7a2e\u5eab\u8f15\u9b06\u9023\u63a5\u548c\u64cd\u4f5c\u6578\u64da\u5eab\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-97028","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97028","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=97028"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97028\/revisions"}],"predecessor-version":[{"id":97029,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97028\/revisions\/97029"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}