设计一个人员类Person，存放下述信息：姓名、性别、出生地、出生日期(使用日期类)、民族、公民身份证件编号、父姓名、母姓名、血型。要求：1)所有信息必须进行完整性校验;2)必须编写自己认为合理的一批成员函数；(A staff class Person is designed to store the following information: name, sex, birthplace, date of birth (date of use), national identity ID number, father's name, mother name, blood type. Requirements: 1) all information must be checked integrality; 2) it is necessary to write a set of member functions that they think are reasonable.)