SQLAlchemy 0.7 postgersql 9.0 SQLAlchemy连接数据库有两种方法,一种是classic,一种是modern 1,modern方法 from sqlalchemy import create_engine from sqlalchemy.ext.declarative import declarative_base from sqlalchemy import Column, Integer, String from sqlalchemy.orm im
1.工程组成 2.urls.py """Django_machine_learning_linear_regression URL Configuration The `urlpatterns` list routes URLs to views. For more information please see: https://docs.djangoproject.com/en/2.1/topics/http/urls/ Examples: Function views 1