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Çó¾È£¡ ijһÊéÀàµÄ²ã´Î½á¹¹ÈçÏ£¬Ç뽫¿Õ°×´¦ÌîÒÔÊʵ±µÄC+£«ÓïÑԳɷ֡£            ££include<iostream.h >       ££include<string.h>       class Book£û             char bookname[24]£» //ÊéÃû             char author[20]£»   //ÖøÕß public£º           Book(char£ªp£½¡±¡±£¬char*q£½¡±¡±£©             £ûstrcpy£¨bookname£¬p£©£»strcpy£¨author£¬q£©;£ý             ¢Ù      { strcpy(bookname, x. bookname) ;strcpy(author,x.author);}      void print£¨£©£» }; class Series::public Book£û       char sername[ 24]   //ϵÁÐÃû       int volume£»   //¾íÊý   public :       Series(char*p=¡±¡±£¬char*q=¡±¡±,char*sn=¡±¡±,int v=0) ¢Ú     £º Series(book x,char sn=¡±¡±,intv=0) 3       void print£¨£©£»   £ý£»   void Book£º£ºprint(£© £û Cout<<¡±ÊéÃû:¡±<<bookname<<endl£»         cout£¼£¼¡±ÖøÕߣº¡±£¼£¼author£¼£¼endl£»   £ý   void Series:: print( )   £û        Book::print(  )        Cout<<¡±ÏµÁÐÃû:¡±<<sername<<¡±µÜ¡±<<colume<<¡±¾í\n¡±; } Ó¦ÓóÌÐò:     #include¡±series.hpp¡±     void main(void)   £û        Book a(¡°ÏÖ´úÈÕÓïÌýÁ¦½Ì³Ì¡±,¡±ÕÅ»ùΡ±); 4           Series b          b.print(£©£» } 5.1.4ÓÐÈçϱíʾ¹ú¼Ò£¨Country£©   Öж«µØÇø(Middle East£©     º£Íå(GULF)¹ú¼ÒµÄÀà²ã´Î½á¹¹.ÔÚ¿Õ°×´¦ÌîÉÏÊʵ±µÄC+£«³É·Ö¡£ ££include<iostream.h£¾       ££include£¼string£®h£¾       class Country£û ¢Ù                      char name [ 20£Ý£»£¯£¯¹úÃû             char capital[ 20¡³£»£¯£¯Ê׶¼           public£º               Country £¨char *n£¬char* cap£©£»               void print£¨£©£»       £ý£» 2                                   {    //Öж«µØÇø           char people[20£Ý£»£¯£¯Ãñ×å             int percent;£¯£¯°Ù·Ö±È           public£º                MiddleEast(char * n,char *cap *pp,int pr);             void print£¨£©£»     £ý£»    3 {º£Íå¹ú¼Ò           int oil;            //Ô­ÓͲúÁ¿         public£º               Gulf (char * n£½¡±¡±£¬char * cap£½¡±¡±,                         Char*pp£½¡±¡±£¬int pr£½0£¬int ol£½0£©£»           void print£¨£©£»     £ý£»   Country::Country£¨char * n£½¡±¡±£¬char * cap£½¡±¡±£©     £û    strcpy( name£¬n£©£»strcpy( capital£¬cap£©£»£ý     void Country::print£¨£©     £û       Cout<<¡±¹úÃû;¡±<<name<<¡±,Ê׶¼£º¡±<<capital<<endl; }    MiddleEast::MiddleEast£¨char *n=¡±¡±,char * cap=¡±¡±,char *pp=¡±¡±,int pr=0£© 4 : Void  MiddleEast::print(  ) {    Cout<<¡±¹ú¼Ò:¡±<<name<<¡±,Ê׶¼:¡±<<capital<<end1;    Cout<<¡±Ãñ×å;¡±<<people<<¡±¡±<<percent<<¡±%\n¡±; } Gulf ::Gulf(char * n=¡±¡±,char * cap=¡±¡±,char * pp=¡±¡±,int pr=0,int ol=0) 5 : Void Gulf ::print(  ) {    Cout<<¡±¹úÃû:¡±<<name<<¡±,Ê׶¼:¡±<<capital<<end1;    Cout<<¡±Ãñ×å:¡±<<people<<¡±¡±<<percent<<¡±%\n¡±;   Cout<<¡±Ô­ÓÍÉú²úÁ¿:¡±<<oil<<¡±ÍòÍ°\n¡±; 5.1.5¶ÔÓÚÀà½á¹¹ Class student { Public:      int studentId;      float gpa;      char college[20];    char name[20];    enum{fresh,soph,junior,senior,grad}year;    char major[20]; void print(  ); }; Class GradStudent:student{ Public:   enum{ta,a,fellowship,other}support;   Char dept[15]; Char thesis[90]; Void print( ); }; ÏÂÃæµÄ´úÂëÖÐÓÐʲô´íÎó? //¡­ Main( ) {   GradStudent s;   Strcpy(s.name,¡±zhang3¡±); ¡­    Êղؠ  ·ÖÏí   ¶¥(0)

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¸ÄÕý£±Â¥µÄÀà²ã´Î½á¹¹´úÂëÖеĴíÎó,½âÊÍÏÂÊö¸÷Óï¾äµÄ×÷ÓÃ: (1)((GradStudent *)pa)->print(  ); (2)((Student *)pgs)->print(  ); (3)pgs->student::print(  ); (4)pa->GradStudent::print(  );