Flask\u662f\u4e00\u500b\u8f15\u91cf\u7d1a\u7684Python\u7db2\u9801\u6846\u67b6\uff0c\u56e0\u5176\u7c21\u55ae\u6613\u7528\u800c\u53d7\u5230\u5ee3\u6cdb\u6b61\u8fce\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528PyCharm\u642d\u5efa\u4e00\u500bFlask\u9805\u76ee\uff0c\u4e26\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002\u9019\u5c07\u5305\u62ec\u74b0\u5883\u8a2d\u7f6e\u3001\u9805\u76ee\u7d50\u69cb\u3001\u6578\u64da\u5eab\u9023\u63a5\u4ee5\u53ca\u57fa\u672c\u7684CRUD\u64cd\u4f5c\u3002<\/p>\n
\u9996\u5148\uff0c\u78ba\u4fdd\u4f60\u7684\u7cfb\u7d71\u5df2\u5b89\u88ddPython\u548cPyCharm\u3002\u63a5\u4e0b\u4f86\uff0c\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u8a2d\u7f6eFlask\u74b0\u5883\uff1a<\/p>\n
pip install Flask SQLAlchemy<\/code><\/pre>\n\u9805\u76ee\u7d50\u69cb<\/h2>\n
\u4e00\u65e6\u74b0\u5883\u8a2d\u7f6e\u5b8c\u6210\uff0c\u9805\u76ee\u7d50\u69cb\u61c9\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
\n\/my_flask_app\n \u251c\u2500\u2500 app.py\n \u251c\u2500\u2500 models.py\n \u251c\u2500\u2500 config.py\n \u2514\u2500\u2500 templates\n \u2514\u2500\u2500 index.html\n<\/code><\/pre>\n\u914d\u7f6eFlask\u61c9\u7528<\/h2>\n
\u5728app.py\u4e2d\uff0c\u6211\u5011\u5c07\u8a2d\u7f6eFlask\u61c9\u7528\u548c\u6578\u64da\u5eab\u9023\u63a5\uff1a<\/p>\n
from flask import Flask\nfrom flask_sqlalchemy import SQLAlchemy\n\napp = Flask(__name__)\napp.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:\/\/\/site.db' # \u4f7f\u7528SQLite\u6578\u64da\u5eab\napp.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False\ndb = SQLAlchemy(app)\n\nif __name__ == '__main__':\n app.run(debug=True)\n<\/code><\/pre>\n\u5275\u5efa\u6578\u64da\u6a21\u578b<\/h2>\n
\u63a5\u4e0b\u4f86\uff0c\u5728models.py\u4e2d\u5b9a\u7fa9\u6578\u64da\u6a21\u578b\uff1a<\/p>\n
from app import db\n\nclass User(db.Model):\n id = db.Column(db.Integer, primary_key=True)\n username = db.Column(db.String(150), nullable=False, unique=True)\n email = db.Column(db.String(150), nullable=False, unique=True)\n\n def __repr__(self):\n return f\"User('{self.username}', '{self.email}')\"\n<\/code><\/pre>\n\u6578\u64da\u5eab\u521d\u59cb\u5316<\/h2>\n
\u5728\u7d42\u7aef\u4e2d\u904b\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ee5\u5275\u5efa\u6578\u64da\u5eab\uff1a<\/p>\n
from app import db\ndb.create_all()\n<\/code><\/pre>\n\u57fa\u672c\u7684CRUD\u64cd\u4f5c<\/h2>\n
\u73fe\u5728\uff0c\u6211\u5011\u53ef\u4ee5\u5728app.py\u4e2d\u6dfb\u52a0\u4e00\u4e9b\u57fa\u672c\u7684CRUD\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u5275\u5efa\u4e00\u500b\u7528\u6236\u4e26\u986f\u793a\u6240\u6709\u7528\u6236\uff1a<\/p>\n
from flask import render_template, request, redirect, url_for\nfrom models import User\n\n@app.route('\/')\ndef index():\n users = User.query.all()\n return render_template('index.html', users=users)\n\n@app.route('\/add', methods=['POST'])\ndef add_user():\n username = request.form.get('username')\n email = request.form.get('email')\n new_user = User(username=username, email=email)\n db.session.add(new_user)\n db.session.commit()\n return redirect(url_for('index'))\n<\/code><\/pre>\n\u5275\u5efaHTML\u6a21\u677f<\/h2>\n
\u5728templates\/index.html\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u7684\u8868\u55ae\u4f86\u6dfb\u52a0\u7528\u6236\uff1a<\/p>\n
<!DOCTYPE html>\n<html lang=\"zh-Hant\">\n<head>\n <meta charset=\"UTF-8\">\n <title>\u7528\u6236\u5217\u8868<\/title>\n<\/head>\n<body>\n <h1>\u7528\u6236\u5217\u8868<\/h1>\n <form method=\"POST\" action=\"\/add\">\n <input type=\"text\" name=\"username\" placeholder=\"\u7528\u6236\u540d\" required>\n <input type=\"email\" name=\"email\" placeholder=\"\u96fb\u5b50\u90f5\u4ef6\" required>\n <button type=\"submit\">\u6dfb\u52a0\u7528\u6236<\/button>\n <\/form>\n <ul>\n {% for user in users %}\n <li>{{ user.username }} - {{ user.email }}<\/li>\n {% endfor %}\n <\/ul>\n<\/body>\n<\/html>\n<\/code><\/pre>\n\u7e3d\u7d50<\/h2>\n
\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u6211\u5011\u6210\u529f\u5730\u4f7f\u7528PyCharm\u642d\u5efa\u4e86\u4e00\u500bFlask\u9805\u76ee\u4e26\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002\u9019\u500b\u7c21\u55ae\u7684\u61c9\u7528\u5c55\u793a\u4e86\u5982\u4f55\u9032\u884c\u57fa\u672c\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u4e26\u70ba\u9032\u4e00\u6b65\u7684\u958b\u767c\u5960\u5b9a\u4e86\u57fa\u790e\u3002\u5982\u679c\u4f60\u9700\u8981\u7a69\u5b9a\u7684\u74b0\u5883\u4f86\u90e8\u7f72\u4f60\u7684Flask\u61c9\u7528\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u4f60\u7684\u9805\u76ee\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528PyCharm\u642d\u5efaFlask\u9805\u76ee\u4e26\u9023\u63a5\u6578\u64da\u5eab\uff0c\u5be6\u73fe\u9ad8\u6548\u7684Web\u61c9\u7528\u958b\u767c\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-194569","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194569","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=194569"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194569\/revisions"}],"predecessor-version":[{"id":194570,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194569\/revisions\/194570"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}