grades) student = Student(name="Alice", age=20, grades=[85.
空心箭头: 指向父类（继承）。空心虚线箭头: 指向接口（实现）。实心实线箭头: 表示关联关系。
1 OEM Solution Builder Extension（SBE）状态 "If your cluster supports Solution Builder Extension software updates, you receive feature release updates after your hardware vendor completes their validation and confirms the release is ready.
hpp）5.4 运行效果 六.select vs poll 全面对比结尾：
这样质量规则才真正影响数据链路。阻断要谨慎。阻断核心任务可能影响报表刷新，也可能保护业务不看错数。