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一、环境：pyqt5+python3.7+SQLAlchemy1.4.36+mysql8.0二、相关表结构如下：classmaintenanceZone(Base):tablename"maintenanceZone"区域信息tableargs{"mysqlengine":"InnoDB",}idsa.Column(sa.Integer(),primarykeyTrue,autoincrementTrue)cityNamesa.Column(sa.String(100),nullableFalse)countyNamesa.Column(sa.String(100),nullableFalse)classmaintainerInfo(Base):tablename"maintainerInfo"人员信息tableargs{"mysqlen...