摘要:
准备工作 from sqlalchemy import create_engine, Column, Integer, String, Float, Text, ForeignKeyfrom sqlalchemy.ext.declarative import declarative_basefrom 阅读全文
摘要:
准备工作 from sqlalchemy import create_engine, Column, Integer, String, Float, Text, ForeignKeyfrom sqlalchemy.ext.declarative import declarative_basefrom 阅读全文
摘要:
relationship()的uselist参数默认为True,即一对多,如果要一对一,则需让uselist=False 准备工作 from sqlalchemy import create_engine, Column, Integer, String, Float, Text, ForeignK 阅读全文