（1）定义一个CPU类，包含等级(rank)、频率(frequency)、电压(voltage)等属性，有两个公有成员函数run、stop，其中rank为枚举类型CPU_ Rank，定义为enum CPU_ Rank(P1 = 1，P2，P3，P4，P5，P6，P7)，frequency为单位是MHz的整型数，voltage为浮点型的电压值。观察构造函数和析构函数的调用顺序。

（2）定义一个简单的Computer类，有数据成员芯片(CPU)，内存(ram)，光驱(cdrom)等等，有两个公有成员函数run、stopo，CPU为CPU类的一个对象，ram为RAM类的一个对象，cdrom为CDROM类的一个对象，定义并实现这个类。

（3）设计一个用于人事管理的People（人员）类。考虑到通用性，这里只抽象出所有类型人员都具有的属性：number（编号），sex（性别），birthday（出生日期），id（身份证号）等等。其中“出生日期”定义为一个“日期”类内嵌子对象。用成员函数实现对人员信息的录人和显示。要求包括：构造函数和析构函数、拷贝构造函数、内联成员函数、聚集。

-(1) the definition of a CPU class, including level (rank), frequency (have), voltage (the) attribute, two public member function, which rank 6), stop for enumeration type CPU_ rank, defined as enum CPU_ rank (P1 = 1, P2, P3, mp4, system, what do, even if have, for the unit is MHz integer, the type of voltage value for floating point. The structures observed function and destructor call sequence.

(2) define a simple Computer class, data members chip (CPU), memory (ram), and cd-rom (cdrom) and so on, has two public member function, stopo 6), the CPU for CPU type of an object, ram for a object of ram, cdrom as an object of cdrom, the definition and realize this class.

(3) to design a used in personnel management personnel of the People (). Considering the versatility, here only abstract out all type personnel have attributes: number (Numbers), sex (sex), yet (date of birth), id (id), and so on. The "date of birth" is defined as a "date" kind of embedded child objects. With the realizati