{"id":97054,"date":"2024-10-20T14:37:16","date_gmt":"2024-10-20T06:37:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97054\/"},"modified":"2024-10-20T14:37:17","modified_gmt":"2024-10-20T06:37:17","slug":"python%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b3%bb%e7%b5%b1%e8%aa%b2%e7%a8%8b%e8%a8%ad%e8%a8%88%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b3%bb%e7%b5%b1%e8%aa%b2%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97054\/","title":{"rendered":"Python\u5728\u6578\u64da\u5eab\u7cfb\u7d71\u8ab2\u7a0b\u8a2d\u8a08\u4e2d\u7684\u61c9\u7528 (\u6578\u64da\u5eab\u7cfb\u7d71\u8ab2\u7a0b\u8a2d\u8a08python)"},"content":{"rendered":"<h1 id=\"python%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b3%bb%e7%b5%b1%e8%aa%b2%e7%a8%8b%e8%a8%ad%e8%a8%88%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8-ZpfQWlnKqL\">Python\u5728\u6578\u64da\u5eab\u7cfb\u7d71\u8ab2\u7a0b\u8a2d\u8a08\u4e2d\u7684\u61c9\u7528<\/h1>\n<p>\u96a8\u8457\u6578\u64da\u79d1\u5b78\u548c\u6578\u64da\u5206\u6790\u7684\u8208\u8d77\uff0cPython\u5df2\u6210\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u5c24\u5176\u662f\u5728\u6578\u64da\u5eab\u7cfb\u7d71\u7684\u8ab2\u7a0b\u8a2d\u8a08\u4e2d\u3002Python\u7684\u7c21\u6f54\u8a9e\u6cd5\u548c\u5f37\u5927\u7684\u5eab\u652f\u6301\u4f7f\u5176\u6210\u70ba\u6559\u5b78\u548c\u5be6\u8e10\u7684\u7406\u60f3\u9078\u64c7\u3002\u672c\u6587\u5c07\u63a2\u8a0ePython\u5728\u6578\u64da\u5eab\u7cfb\u7d71\u8ab2\u7a0b\u8a2d\u8a08\u4e2d\u7684\u61c9\u7528\uff0c\u5305\u62ec\u5176\u512a\u52e2\u3001\u5e38\u7528\u5eab\u4ee5\u53ca\u5be6\u969b\u6848\u4f8b\u3002<\/p>\n<h2 id=\"python%e7%9a%84%e5%84%aa%e5%8b%a2-ZpfQWlnKqL\">Python\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u6613\u65bc\u5b78\u7fd2\uff1a<\/strong>Python\u7684\u8a9e\u6cd5\u7c21\u55ae\u660e\u77ad\uff0c\u9069\u5408\u521d\u5b78\u8005\u5feb\u901f\u4e0a\u624b\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u5eab\u7cfb\u7d71\u7684\u57fa\u790e\u77e5\u8b58\u5b78\u7fd2\u4e2d\u3002<\/li>\n<li><strong>\u5f37\u5927\u7684\u5eab\u652f\u6301\uff1a<\/strong>Python\u64c1\u6709\u591a\u500b\u5f37\u5927\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u5eab\uff0c\u5982SQLite\u3001SQLAlchemy\u548cPandas\uff0c\u9019\u4e9b\u5eab\u80fd\u5920\u7c21\u5316\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u548c\u6578\u64da\u5206\u6790\u3002<\/li>\n<li><strong>\u8de8\u5e73\u53f0\u6027\uff1a<\/strong>Python\u53ef\u4ee5\u5728\u591a\u7a2e\u64cd\u4f5c\u7cfb\u7d71\u4e0a\u904b\u884c\uff0c\u9019\u4f7f\u5f97\u5b78\u751f\u80fd\u5920\u5728\u4e0d\u540c\u74b0\u5883\u4e2d\u9032\u884c\u5b78\u7fd2\u548c\u5be6\u9a57\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%b8%b8%e7%94%a8%e7%9a%84python%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ba%ab-ZpfQWlnKqL\">\u5e38\u7528\u7684Python\u6578\u64da\u5eab\u5eab<\/h2>\n<h3 id=\"1-sqlite-ZpfQWlnKqL\">1. SQLite<\/h3>\n<p>SQLite\u662f\u4e00\u500b\u8f15\u91cf\u7d1a\u7684\u6578\u64da\u5eab\uff0c\u9069\u5408\u7528\u65bc\u5c0f\u578b\u61c9\u7528\u548c\u5b78\u7fd2\u76ee\u7684\u3002\u5b83\u4e0d\u9700\u8981\u5b89\u88dd\u670d\u52d9\u5668\uff0c\u5b78\u751f\u53ef\u4ee5\u8f15\u9b06\u5730\u5728\u672c\u5730\u74b0\u5883\u4e2d\u4f7f\u7528\u3002<\/p>\n<pre><code>import sqlite3\n\n# \u9023\u63a5\u5230SQLite\u6578\u64da\u5eab\nconn = sqlite3.connect('example.db')\n\n# \u5275\u5efa\u4e00\u500b\u6e38\u6a19\u5c0d\u8c61\nc = conn.cursor()\n\n# \u5275\u5efa\u8868\nc.execute('''CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT, age INTEGER)''')\n\n# \u63d2\u5165\u6578\u64da\nc.execute(\"INSERT INTO users (name, age) VALUES ('Alice', 30)\")\n\n# \u63d0\u4ea4\u4e8b\u52d9\nconn.commit()\n\n# \u67e5\u8a62\u6578\u64da\nc.execute(\"SELECT * FROM users\")\nprint(c.fetchall())\n\n# \u95dc\u9589\u9023\u63a5\nconn.close()<\/code><\/pre>\n<h3 id=\"2-sqlalchemy-ZpfQWlnKqL\">2. SQLAlchemy<\/h3>\n<p>SQLAlchemy\u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684ORM\uff08\u5c0d\u8c61\u95dc\u4fc2\u6620\u5c04\uff09\u5eab\uff0c\u80fd\u5920\u8b93\u958b\u767c\u8005\u4ee5Python\u5c0d\u8c61\u7684\u65b9\u5f0f\u64cd\u4f5c\u6578\u64da\u5eab\uff0c\u7c21\u5316\u4e86\u6578\u64da\u5eab\u7684\u4ea4\u4e92\u904e\u7a0b\u3002<\/p>\n<pre><code>from sqlalchemy import create_engine, Column, Integer, String\nfrom sqlalchemy.ext.declarative import declarative_base\nfrom sqlalchemy.orm import sessionmaker\n\n# \u5275\u5efa\u6578\u64da\u5eab\u5f15\u64ce\nengine = create_engine('sqlite:\/\/\/example.db')\nBase = declarative_base()\n\n# \u5b9a\u7fa9\u7528\u6236\u6a21\u578b\nclass User(Base):\n    __tablename__ = 'users'\n    id = Column(Integer, primary_key=True)\n    name = Column(String)\n    age = Column(Integer)\n\n# \u5275\u5efa\u8868\nBase.metadata.create_all(engine)\n\n# \u5275\u5efa\u6703\u8a71\nSession = sessionmaker(bind=engine)\nsession = Session()\n\n# \u63d2\u5165\u6578\u64da\nnew_user = User(name='Bob', age=25)\nsession.add(new_user)\nsession.commit()\n\n# \u67e5\u8a62\u6578\u64da\nfor user in session.query(User).all():\n    print(user.name, user.age)\n\n# \u95dc\u9589\u6703\u8a71\nsession.close()<\/code><\/pre>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%a1%88%e4%be%8b-ZpfQWlnKqL\">\u5be6\u969b\u6848\u4f8b<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u7cfb\u7d71\u8ab2\u7a0b\u4e2d\uff0c\u6559\u5e2b\u53ef\u4ee5\u8a2d\u8a08\u4e00\u500b\u9805\u76ee\uff0c\u8b93\u5b78\u751f\u4f7f\u7528Python\u548cSQLite\u4f86\u69cb\u5efa\u4e00\u500b\u7c21\u55ae\u7684\u5716\u66f8\u7ba1\u7406\u7cfb\u7d71\u3002\u5b78\u751f\u53ef\u4ee5\u5b78\u7fd2\u5982\u4f55\u8a2d\u8a08\u6578\u64da\u5eab\u7d50\u69cb\u3001\u57f7\u884c\u57fa\u672c\u7684CRUD\uff08\u5275\u5efa\u3001\u8b80\u53d6\u3001\u66f4\u65b0\u3001\u522a\u9664\uff09\u64cd\u4f5c\uff0c\u4e26\u4f7f\u7528Python\u9032\u884c\u6578\u64da\u5206\u6790\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5b78\u751f\u53ef\u4ee5\u8a2d\u8a08\u4e00\u500b\u7528\u6236\u754c\u9762\uff0c\u8b93\u7528\u6236\u80fd\u5920\u6dfb\u52a0\u66f8\u7c4d\u3001\u67e5\u8a62\u66f8\u7c4d\u4fe1\u606f\uff0c\u751a\u81f3\u751f\u6210\u5831\u544a\u3002\u9019\u6a23\u7684\u5be6\u8e10\u4e0d\u50c5\u80fd\u5920\u52a0\u6df1\u5b78\u751f\u5c0d\u6578\u64da\u5eab\u7cfb\u7d71\u7684\u7406\u89e3\uff0c\u9084\u80fd\u63d0\u9ad8\u4ed6\u5011\u7684\u7de8\u7a0b\u80fd\u529b\u548c\u554f\u984c\u89e3\u6c7a\u80fd\u529b\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-ZpfQWlnKqL\">\u7d50\u8ad6<\/h2>\n<p>Python\u5728\u6578\u64da\u5eab\u7cfb\u7d71\u8ab2\u7a0b\u8a2d\u8a08\u4e2d\u7684\u61c9\u7528\u4e0d\u50c5\u63d0\u9ad8\u4e86\u5b78\u7fd2\u7684\u8da3\u5473\u6027\uff0c\u9084\u589e\u5f37\u4e86\u5b78\u751f\u7684\u5be6\u8e10\u80fd\u529b\u3002\u901a\u904e\u4f7f\u7528Python\u53ca\u5176\u5f37\u5927\u7684\u5eab\uff0c\u5b78\u751f\u80fd\u5920\u66f4\u8f15\u9b06\u5730\u638c\u63e1\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5\u548c\u64cd\u4f5c\uff0c\u70ba\u672a\u4f86\u7684\u5b78\u7fd2\u548c\u5de5\u4f5c\u6253\u4e0b\u5805\u5be6\u7684\u57fa\u790e\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Python\u5728\u6578\u64da\u5eab\u7cfb\u7d71\u8ab2\u7a0b\u8a2d\u8a08\u4e2d\u7684\u61c9\u7528\uff0c\u63d0\u5347\u5b78\u751f\u7684\u5be6\u8e10\u6280\u80fd\u8207\u6578\u64da\u8655\u7406\u80fd\u529b\uff0c\u52a9\u529b\u672a\u4f86\u8077\u696d\u767c\u5c55\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-97054","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97054","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=97054"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97054\/revisions"}],"predecessor-version":[{"id":97055,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97054\/revisions\/97055"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}