在 Flask 中使用SQLAlchemy库来实现对MySQL数据库的增删改查 fromflaskimportFlask,request,jsonify fromflask_sqlalchemyimportSQLAlchemy app=Flask(__name__) app.config['SQLALCHEMY_DATABASE_URI']='mysql://username:password@localhost/dbname' app.config['SQLALCHEMY_TRACK_MODIFICATIONS']=False db=SQLAlchemy(app) ...