您永遠不會調用db.create_all()來創建數據庫表。您需要以下內容: from flask import Flask, requestfrom flask_sqlalchemy import SQLAlchemyapp = Flask(__name__)app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///db.sqlite3'db = SQLAlchemy(app)class Object(db.Model): oid = db.Column(db.Integer, primary_key=True) size = db.Column(db.Integer) def __repr__(self): return f'Object: {self.oid}, Size: {self.size}'# Create tables corresponding to sqlalchemy modelsdb.create_all()@app.route('/')def index(): return 'DSAP_2022'@app.route('/data/<oid>', methods=['GET'])def getObject(oid): obj = Object.query.filter_by(oid=oid).firs