/*设计一个用于人事管理的People组合类，人员的属性为：number,sex,birthday和id等。其中“出生日期”定义为一个“日期”内嵌对象。

用成员函数实现对人员信息的录入和显示。要求具有构造函数、析构函数、拷贝构造函数、内联成员和带省缺形式参数值的成员函数。*/-/* Design a portfolio for the personnel management of the People category, personnel attributes: number, sex, birthday and id like. The " date of birth"　is defined as a " Date"　embedded objects. With member functions to achieve the personnel information input and display. Requires a constructor, destructor, copy constructor, inline with provincial missing members and member functions of the form parameter values.* /