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const B=A*3; void main() { cout< [2_8]´ð£ºÊ¹ÓÃÄÚÁªº¯ÊýµÄÓŵãÖ÷ÒªÓÐÁ½¸ö£ºÒ»ÊÇÄܼӿì´úÂëµÄÖ´ÐУ¬¼õÉÙµ÷Óà ¿ªÏú£»¶þÊÇÄÜÏû³ýºê¶¨ÒåµÄ²»°²È«ÐÔ¡£ [2_9] Óö¯Ì¬·ÖÅä¿Õ¼äµÄ·½·¨¼ÆËãFibonacciÊýÁеÄǰ20Ïî²¢´æ´¢µ½¶¯Ì¬·ÖÅäµÄ ¿Õ¼äÖС£ ´ð£º#include { int I,*p=new int[20];//¶¯Ì¬·ÖÅä20¸öÕûÐͿռä *p=1; *(p+1)=1;//Ç°ÃæÁ½¸ö¿Õ¼ä¸³Öµ1 cout<<*p<<¡±\\t¡±<<*(p+1)<<¡±\\t¡±; p=p+2;//pÖ¸ÏòµÚÈý¸ö¿Õ¼ä for(i=3;i<=20;i++) { *p=*(p-1)+*(p-2); cout<<*p<<¡±\\t¡±; if(i%5==0) cout< ½á¹û£º1 1 2 3 5 8 8 13 21 34 55 89 144 233 377 610 987 1597 2584 4181 6765 [2_10] ½¨Á¢Ò»¸ö±»³ÆÎªsroot()µÄº¯Êý£¬·µ»ØÆä²ÎÊýµÄ¶þ´Î·½¸ù¡£ÖØÔØsroot()Èý´Î£¬ ÈÃËü·µ»ØÕûÊý¡¢³¤ÕûÊýÓëË«¾«¶ÈÊýµÄ¶þ´Î·½¸ù£¨¼ÆËã¶þ´Î·½¸ùʱ£¬¿ÉÒÔʹÓñê×¼ ¿âº¯Êýsqrt()£© #include int sroot(int );long sroot(long);double sroot(double); double sqrt();//ÉùÃ÷¿ª·½º¯Êýsqrt() void main() { int i,x;long l,y;double d,z; cin>>i; cin>>l; cin>>d; x=sroot(i); y=sroot(l); z=sroot(d); cout< int sroot(int i) { return sqrt(i); } //iÊÇÕûÊý long sroot(long l) { return sqrt(l); } //lÊdz¤ÕûÐÍ double sroot(double d) { return sqrt(d); } //dÊÇË«¾«¶È //Çýø9 16 25 //Êä³ö3 4 5 9 ϰÌâ[2_11] ±àдC++·ç¸ñµÄ³ÌÐò£¬½â¾ö°ÙÇ®ÎÊÌ⣬½«Ò»ÔªÈËÃñ±Ò¶Ò»»³É1¡¢2¡¢5·ÖµÄÓ²±Ò£¬ÓжàÉÙÖÖ»»·¨£¿ #include cout<<100-5*i-2*j<<¡±\\t¡±< cout<<¡±sum is ¡°< ϰÌâ[2_12] ±àдC++·ç¸ñµÄ³ÌÐò£¬Óöþ·Ö·¨Çó½âf(x)=0µÄ¸ù #include { return 2*x*x*x-4*x*x+3*x-6; } void main() { float left,right,middle,ym,yl,yr; cout<<¡±pleass two number:¡±< 10 do { middle=(right+left)/2; ym=f(middle); if(yr*ym>0) { right=middle; Yr=ym; } else { left=middle; yl=ym; } }while(fabs(ym)>=1e-6); cout<<¡±\\nRoot is:¡±< ±¾ÀýʹÓÃÁËÄÚÁªº¯Êýf(x),ÒòΪÔÚÖ÷º¯ÊýÖжà´Îµ÷ÓÃËü£¬ÕâÑù¿ÉÒÔ¼Ó¿ì´úÂëÖ´ÐеÄËÙ¶È¡£ÇýøÁ½¸öÊý£º-10 10 ½á¹û£ºRoot is 2 [2_13]´ð£ºÔËÐнá¹ûÊÇ£º2 4 6 12 10 ˵Ã÷£º±¾ÀýʹÓõÄÊÇ·µ»ØÒýÓõÄÖµ£¬index(3)=12;Óï¾äµÄÖ´ÐÐʵ¼Ê½«a[3]¸³ÖµÎª12¡£ [2_14]´ð£ºÔËÐнá¹ûΪ£º101 ˵Ã÷£ºÔÚÓï¾ä::i=i+1;Öи³ÖµºÅ×ó±ß::iµÄiµ¥ÔªÊÇÈ« ¾Ö±äÁ¿£¬¸³ÖµºÅÓұߵÄiµ¥ÔªÊǾֲ¿±äÁ¿i¡£ËùÒÔÖ´ÐиÃÓï¾äµÄ½á¹ûÊÇ ½«¾Ö²¿±äÁ¿iµÄÖµ+1£¨101£©¸³Öµ¸øÈ«¾Ö±äÁ¿i [2_15]´ð£º½á¹ûÊÇ£º10 10 ˵Ã÷£ºº¯Êýf(&a,b)ÖеĵÚÒ»¸ö²ÎÊýÊÇÒýÓã¬ÒýÓòÎÊýÊÇÒ»ÖÖ°´µØÖ·´«µÝ²ÎÊýµÄ·½·¨£¬¶ÔÆäµÄµ÷ÓÃÊÇ´«µØÖ·µ÷Óã»¶øµÚ¶þ¸ö²ÎÊýÊDZäÁ¿²ÎÊý£¬¶ÔËüµÄµ÷ÓÃÊÇͨ³£µÄ´«Öµµ÷Óá£ËùÒÔÔËÐкó£¬aµÄÖµ±»¸ÄΪ10£¬bµÄÖµ²»±ä£¬ÈÔΪ10 11 [2_16]´ð£ºD ˵Ã÷£ºint *p=new int(10);±íʾ·ÖÅä1¸öÕûÐͿռ䣬³õֵΪ10 int *p=new int[10];±íʾ·ÖÅä10¸öÕûÐͿռä int *p=new int;±íʾ·ÖÅä1¸öÕûÐͿռä int *p=new int[10](0)Ïë¸øÒ»¸öÊý×é·ÖÅäÄÚ´æ¿Õ¼äʱ£¬¶ÔÕû¸öÊý×é½øÐгõʼ»¯£¬ÕâÊDz»ÔÊÐíµÄ¡£ [2_17]´ð£ºD ˵Ã÷£ºname±»¶¨ÒåΪָÏò³£Á¿µÄ³£Ö¸Õ룬ËùÒÔËüËùÖ¸µÄÄÚÈݺͱ¾ ÉíµÄÄÚÈݶ¼²»ÄÜÐ޸쬶øname[3]=?a?;ÐÞ¸ÄÁËnameËùÖ¸µÄ ³£Á¿£¬name=?lin?;ºÍname=new char[5];ÐÞ¸ÄÁ˳£Ö¸Õ룬ֻÓÐ DÊä³öÒ»¸ö×Ö·ûÊÇÕýÈ·µÄ¡£ [2_18]´ð£ºA ˵Ã÷£ºname±»¶¨ÒåÖ¸Ïò³£Á¿µÄÖ¸Õ룬ÕâÊÇÒ»¸ö²»ÄÜÒÆ¶¯µÄ¹Ì¶¨Ö¸Õ룬ËüËùÖ¸µÄÄÚÈݲ»Äܸı䣬µ«Ö¸ÕëËùÖ¸µÄÊý¾Ý¿ÉÒԸı䣬¶øname[3]=?q?;ÐÞ¸ÄÁËnameËùÖ¸µÄÄÚÈÝ£¬ÊÇÕýÈ·µÄ¡£name=¡±lin¡±; 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//¸øÔÖµ¼Ó1 void decrement(); ///¸øÔÖµ¼õ1 int getvalue(); //È¡µÃ¼ÆÊýÆ÷Öµ int print(); //ÏÔʾ¼ÆÊý private: int value; }; counter::counter(int number)//¹¹Ô캯Êý¶¨Òå { value=number; } void counter::increment()//¸øÔÖµ¼Ó1 { value++; } void counter::decrement()//¸øÔÖµ¼õ1 { value--; } int counter::getvalue()//È¡µÃ¼ÆÊýÆ÷Öµ { return value; } int counter::print()//ÏÔʾ¼ÆÊý { cout<<\is \ return 0; 15 } main() { int i; cin>>i; counter a(0); for(int j=0;j counter b(10); for(int k=1;k ϰÌ⣺[3_12]¸ù¾Ý×¢ÊÍÓï¾äµÄÌáʾ£¬ÊµÏÖÀàDateµÄ³ÉÔ±º¯Êý#include void printDate(); //ÏÔʾÈÕÆÚ void setDay(int d);//ÉèÖÃÈÕÆÚÖµ void setMonth(int m);//ÉèÖÃÔµÄÖµ 16 void setYear(int y);//ÉèÖÃÄêµÄÖµ private: int day,month,year; }; void main() { Date testDay; testDay.setDay(5); testDay.setMonth(10); testDay.setYear(2003); testDay.printDate(); } void Date::printDate() { cout<<\is \ cout< void Date::setDay(int d) { day=d; } void Date::setMonth(int m) { month=m; } void Date::setYear(int y) { year=y; } ϰÌ⣺[3_13]ÏÂÃæ¶¨ÒåÁËÒ»¸öÀàdate,¸ù¾ÝÖ÷³ÌÐòµÄÌáʾ£¬ÊµÏÖÖØÔØ¹¹Ô캯Êýdate() #include 17 class date { public: date(int d,int m,int y); date::date(); void show(); private: int day,month,year; }; void date::show() { cout< { date idate(28,10,1949);//¹¹Ô캯ÊýµÄ²ÎÊýΪ3¸öÕûÊý idate.show(); date indate; //¹¹Ô캯ÊýûÓвÎÊý£¬Êý¾Ýͨ¹ý¼üÅÌÖ±½ÓÊäÈë indate.show(); return 0; } //½â£ºÖØÔع¹Ô캯ÊýµÄʵÏÖÈçÏ£º date::date(int d,int m,int y) { day=d; month=m; year=y; } 18 date::date() { cout<<\month_day_year:\\n\ cin>>day; cin>>month; cin>>year; }//×¢Ò⣺ÇÃÊý¾ÝʱҪÈ磺8 »Ø³µ 9»Ø³µ 2005»Ø³µ ϰÌ⣺[3_14]½¨Á¢Ààcylinder£¬cylinderµÄ¹¹Ô캯Êý±»´«µÝÁËÁ½¸ödoubleÖµ£¬·Ö±ð±íʾԲÖùÌåµÄ°ë¾¶ºÍ¸ß¶È¡£ÓÃÀàcylinder¼ÆËãÔ²ÖùÌåµÄÌå»ý£¬²¢´æ´¢ÔÚÒ»¸ödouble±äÁ¿ÖС£ÔÚÀàcylinderÖаüº¬Ò»¸ö³ÉÔ±º¯Êývol()£¬ÓÃÀ´ÏÔʾÿ¸öcylinder¶ÔÏóµÄÌå»ý¡£ #include cylinder(double a,double b); void vol(); private: double r,h; double volume; }; cylinder::cylinder(double a,double b) { r=a; h=b; volume=3.141592*r*r*h; } void cylinder::vol() { cout<<\is: \} 19 void main() { cylinder x(2.2,8.09); x.vol(); } ϰÌ⣺[3_15]½¨Á¢Ò»¸öStockÀ࣬º¬ÓÐ¹ÉÆ±´úÂëºÍ¹ÉƱÏÖ¼ÛÁ½¸öÊý¾Ý³ÉÔ±¡£ÓÃnew×Ô¶¯ÎªStockÀàµÄ¶ÔÏó·ÖÅäÄڴ棬²¢½«¹ÉƱ´úÂë¡°600001¡±£¬ÏÖ¼Û8.89´æÈëÄÚ´æµÄÏàÓ¦ÓòÖС£ #include void set(char *c,float pr); void print(); private: char Stockcode[7]; float price; }; void Stock::set(char *c,float pr) { strcpy(Stockcode,c); price=pr; } void Stock::print() { cout< 20 } main() { Stock *p; p=new Stock; //Ϊ¶ÔÏó·ÖÅä¿Õ¼ä if(!p) //ÅжϷÖÅäÊÇ·ñ³É¹¦ { cout<<\error.\ return 1; } p->set(\Ϊ¶ÔÏó¸³Öµ p->print(); //ÏÔʾ¶ÔÏó delete p; return 0; } ϰÌ⣺[3_16]ÉùÃ÷Ò»¸öÕ»À࣬ÀûÓÃÕ»²Ù×÷ʵÏÖ½«ÊäÈë×Ö·û´®·´ÏòÊä³öµÄ¹¦ÄÜ#include stack() //¹¹Ô캯Êý { tos=0; } void push(char ch);//½«Êý¾ÝchѹÈëÕ» char pop(); //½«Õ»¶¥Êý¾Ýµ¯³öÕ» 21 char stck[SIZE]; //Êý×飬ÓÃÓÚ´æ·ÅÕ»ÖÐÊý¾ÝSIZEÉÏÃæ¸³ÖµÎª10 int tos; //Õ»¶¥Î»Öã¨Êý×éϱ꣩ }; //stack::stack() //¹¹Ô캯Êý£¬³õʼ»¯Õ» //{ tos=0; } void stack::push(char ch)//ѹÈëÕ» { if(tos==SIZE) { cout<<\is full\Õ»ÊÇÂúµÄ return; } stck[tos]=ch; tos++; } char stack::pop()//µ¯³öÕ» { if(tos==0) { cout<<\is empty\Õ»ÊÇ¿ÕµÄ return 0; } tos--; return stck[tos]; } void main() 22 { int i; char str[20]; char re_str[20]; cout<<\input a string: \ cin>>str; stack ss; for(i=0;i for(i=0;i cout<<\string: \ cout< ¸½£ºÓÃCд·´ÐòÊä³ö³ÌÐò ²½Ö裺´ò¿ªVCϵͳ£¬File¨¤new¨¤File¨¤C++Source File¨¤¸Ä±ä·¾¶LocationΪ±¾ÕµÄ·¾¶¨¤File´¦Ð´ÎļþÃû¨¤ok¨¤¿ªÊ¼Ð´C³ÌÐò¨¤Ö®ºó±àÒëÔËÐÐ #include { int inverse(char str[]); //º¯ÊýÔÐÍ˵Ã÷ char str[100]; printf(\string: \ scanf(\ 23 inverse(str); printf(\string: %s\\n\} int inverse(char str[]) //º¯Êý¶¨Òå { char t; int i,j; for(i=0,j=strlen(str);i 24 µÚËÄÕ£ºÀàºÍ¶ÔÏ󣨶þ£© [4_1]ʲôÊǶÔÏóÊý×é Ëùν¶ÔÏóÊý×éÊÇָÿһÊý×éÔªËØ¶¼ÊǶÔÏóµÄÊý×飬Ҳ¾ÍÊÇ˵£¬ÈôÒ»¸öÀàÓÐÈô¸É¸ö¶ÔÏó£¬ÎÒÃǰÑÕâһϵÁеĶÔÏóÓÃÒ»¸öÊý×éÀ´´æ·Å¡£¶ÔÏóÊý×éµÄÔªËØÊǶÔÏ󣬲»½ö¾ßÓÐÊý¾Ý³ÉÔ±£¬¶øÇÒ»¹Óк¯Êý³ÉÔ±¡£ [4_2]ʲôÊÇthisÖ¸Õ룿ËüµÄÖ÷Òª×÷ÓÃÊÇʲô£¿ C++Ϊ³ÉÔ±º¯ÊýÌṩÁËÒ»¸öÃû×ÖΪthisµÄÖ¸Õ룬Õâ¸öÖ¸Õë³ÆÎª×ÔÒýÓÃÖ¸Õ롣ÿµ±´´½¨Ò»¸ö¶ÔÏóʱ£¬ÏµÍ³¾Í°ÑthisÖ¸Õë³õʼ»¯ÎªÖ¸Ïò¸Ã¶ÔÏó¡£Ã¿µ±µ÷ÓÃÒ»¸ö³ÉÔ±º¯Êýʱ£¬ÏµÍ³¾Í×Ô¶¯°ÑthisÖ¸Õë×÷Ϊһ¸öÒþº¬µÄ²ÎÊý´«¸ø¸Ãº¯Êý¡£²»Í¬µÄ¶ÔÏóµ÷ÓÃͬһ¸ö³ÉÔ±º¯Êýʱ£¬C++±àÒëÆ÷½«¸ù¾Ý³ÉÔ±º¯ÊýµÄthisÖ¸ÕëËùÖ¸ÏòµÄ¶ÔÏóÀ´È·¶¨Ó¦¸ÃÒýÓÃÄÄÒ»¸ö¶ÔÏóµÄÊý¾Ý³ÉÔ±¡£ [4_3]ÓÑÔªº¯ÊýÓÐʲô×÷Óã¿ ÓÑÔªº¯Êý²»Êǵ±Ç°ÀàµÄ³ÉÔ±º¯Êý£¬¶øÊǶÀÁ¢ÓÚµ±Ç°ÀàµÄÍⲿº¯Êý£¬µ«Ëü¿ÉÒÔ·ÃÎʸÃÀàµÄËùÓжÔÏóµÄ³ÉÔ±£¬°üÀ¨Ë½ÓгÉÔ±ºÍ¹«ÓгÉÔ±¡£Í¨¹ýÓÑÔªº¯Êý¿ÉÒÔÔÚ²»·ÅÆú˽ÓÐÊý¾Ý°²È«µÄÇé¿öÏ£¬Ê¹µÃÀàÍⲿµÄº¯ÊýÄܹ»·ÃÎÊÀàÖеÄ˽ÓгÉÔ±¡£ µ±Ò»¸öº¯ÊýÐèÒª·ÃÎʶà¸öÀàʱ£¬ÓÑÔªº¯Êý·Ç³£ÓÐÓã¬ÆÕͨµÄ³ÉÔ±º¯ÊýÖ»ÄÜ·ÃÎÊÆäËùÊôµÄÀ࣬µ«ÊǶà¸öÀàµÄÓÑÔªº¯ÊýÄܹ»·ÃÎÊÏàÓ¦µÄËùÓÐÀàµÄÊý¾Ý¡£´ËÍ⣬ÔÚijЩÇé¿ö£¬ÀýÈçÔËËã·û±»ÖØÔØÊ±£¬ÐèÒªÓõ½ÓÑÔªº¯Êý¡£ [4_4]¼ÙÉèÔÚ³ÌÐòÖÐÒѾÉùÃ÷ÁËÀàpoint£¬²¢½¨Á¢ÁËÆä¶ÔÏóp1ºÍp2¡£Çë»Ø´ðÒÔÏ ¼¸¸öÓï¾äÓÐÊ²Ã´Çø±ð£¿ (1)point p1,p2; ÓôøÈ±Ê¡²ÎÊýµÄ¹¹Ô캯Êý»ò²»´ø²ÎÊýµÄ¹¹Ô캯Êý£¬¶¨ÒåÁËpoint ÀàµÄ2¸ö¶ÔÏóp1ºÍp2¡£ (2)point p2=p1; ÒÀ¾ÝÒÑ´æÔڵĶÔÏóp1,Óø³ÖµÐÎʽµ÷Óÿ½±´¹¹Ô캯Êý£¬´´½¨¶Ô Ïóp2¡£ 25 (3)point p2(p1); ÒÀ¾ÝÒÑ´æÔڵĶÔÏóp1£¬ÓÃÏÔʾµ÷Óÿ½±´¹¹Ô캯Êý£¬´´½¨¶ÔÏó p2 (4)p2=p1; ¶ÔÏó¸³ÖµÓï¾ä£¬½«¶ÔÏóp1Êý¾Ý³ÉÔ±µÄÖµ¿½±´µ½¶ÔÏóp2ÖС£ [4_5]ÔÚÏÂÃæÓйؾ²Ì¬³ÉÔ±º¯ÊýµÄÃèÊöÖУ¬ÕýÈ·µÄÊÇ£¨B£©¼ûÊé133Ò³ ˵Ã÷£ºC++Öй涨ÔÚ½¨Á¢¶ÔÏóǰ£¬¾Í¿ÉÒÔΪ¾²Ì¬Êý¾Ý³ÉÔ±¸³Öµ¡£Í¬Ê±¹æ¶¨ÔÚ¾²Ì¬ ³ÉÔ±º¯ÊýÖв»ÄÜʹÓÃthisÖ¸Õë¡£¾²Ì¬³ÉÔ±º¯ÊýÔÚÀàÍⶨÒåʱ£¬²»ÐèÒªÓà staticǰ׺¡£¾²Ì¬³ÉÔ±º¯Êý¼´¿ÉÒÔÔÚÀàÄÚ¶¨ÒåÒ²¿ÉÒÔÔÚÀàÍⶨÒå [4_6]ÔÚÏÂÃæÓйØÓÑÔªº¯ÊýµÄÃèÊöÖУ¬ÕýÈ·µÄ˵·¨ÊÇ£¨A£©£¨134£© ˵Ã÷£ºÔÚC++ÖÐÓÑÔªº¯ÊýÊǶÀÁ¢ÓÚµ±Ç°ÀàµÄÍⲿº¯Êý£¬Ò»¸öÓÑÔªº¯Êý¿ÉÒÔͬʱ¶¨ ÒåΪÁ½¸öÀàµÄÓÑÔªº¯Êý¡£ÓÑÔªº¯Êý¼´¿ÉÒÔÔÚÀàµÄÄÚ²¿Ò²¿ÉÒÔÔÚÀàµÄÍⲿ¶¨ Ò壬¶øÔÚÍⲿ¶¨ÒåÓÑÔªº¯Êýʱ£¬²»±Ø¼Ó¹Ø¼ü×Öfriend [4_7]ÓÑÔªº¯ÊýµÄ×÷ÓÃÖ®Ò»ÊÇ£¨A£©£¨134£© ˵Ã÷£ºÓÉÓÚÓÑÔªº¯Êý¿ÉÒÔÖ±½Ó·ÃÎʶÔÏóµÄ˽ÓгÉÔ±£¬ËùÒÔÓÑÔªµÄ×÷ÓÃÊÇÌá¸ß³ÌÐò ÔËÐеÄЧÂÊ¡£ [4_8]Ö¸³öÏÂÃæ³ÌÐòµÄ´íÎ󣬲¢ËµÃ÷ÔÒò£º´ð°¸Êǽ«ÆäÖжÔÓ¦µÄ2Ìõ¸Ä³É£º cout< #include CTest(int i1,int i2):y1(i1),y2(i2) 26 { y1=10; //´íÎó£¬y1Êǵ÷ÓÃconst¶¨ÒåµÄ£¬²»ÄÜÐÞ¸Ä x=y1; } int readme() const; // ¡.. private: int x; const int y1; }; int CTest::readme() const { int i; i=x; x++; //´íÎ󣬺¯Êý¶¨ÒåÓÃÁËconst£¬±íʾ¸Ãº¯Êý²»ÄÜÐ޸ĶÔÏó return x; } void main() { CTest c(2,8); int i=c.y2; c.y2=i; //´íÎó£¬y2Êdz£Á¿£¬²»ÄÜÐÞ¸Ä i=c.y1; //´íÎó£¬y1ÊÇ˽ÓбäÁ¿£¬²»ÄÜÖ±½Ó´æÈ¡ } [4_10]´ð£º #include 27 { public: CTest () { x=20; } void use_friend(); private: int x; friend void friend_f(CTest fri); }; void friend_f(CTest fri) { fri.x=55; } void CTest::use_friend() { CTest fri; this->friend_f(fri); //´íÎó¡£ÓÑÔªº¯Êý²»ÊdzÉÔ±º¯Êý£¬ËùÒÔ²»ÄÜÓÃthis->µ÷ÓÃÓÑ//Ôªº¯Êý ::friend_f(fri); } void main() { CTest fri,fri1; fri.friend_f(fri); //´íÎó£¬ÓÑÔªº¯Êý²»ÊdzÉÔ±º¯Êý£¬ËùÒÔ²»ÄÜÓöÔÏó.º¯ÊýÃûµ÷ //ÓÃÓÑÔªº¯Êý friend_f(fri1); } [4_11]´ð£º #include 28 class CTest { public: CTest() { x=20; } void use_this(); private: int x; }; void CTest::use_this() { CTest y,*pointer; this=&y; //´íÎ󣬲»ÄܶÔthisÖ±½Ó¸³Öµ *this.x=10; //´íÎ󣬰´ÓÅÏȼ¶Ô¾äµÄº¬ÒåÊÇ*(this.x)=10£¬ÏÔÈ»²»¶Ô£¬ÕýÈ·µÄд //·¨ÊÇ(*this).x=10;»òthis->x=10; pointer=this; pointer=&y; } void main() { CTest y; this->x=235; //´íÎó£¬thisµÄÒýÓò»ÄÜÔÚÍⲿº¯ÊýÖУ¬Ö»ÄÜÔÚÄÚ²¿º¯ÊýÖС£ } [4_12]´ð£ºÔËÐнá¹ûÊÇ£º 10£¬20 30£¬48 50£¬68 70£¬80 29 90£¬16 11£¬120 [4_13]´ð£ºÔËÐнá¹ûÊÇ£º Constructing 10 Destructing. 100 Destructing [4_14]´ð£ºÔËÐнá¹ûÊÇ£º 3 objects in existence 4 objects in existence after allocation 3 objects in existence after deletion ˵Ã÷£ºÕâ¸ö³ÌÐòʹÓþ²Ì¬Êý¾Ý³ÉÔ±×·×Ù¼ÇÔØ´´½¨¶ÔÏóµÄ¸öÊý¡£Íê³ÉÕâÒ»¹¤×÷µÄ·½ ·¨¾ÍÊÇÿ´´½¨Ò»¸ö¶ÔÏó¾Íµ÷Óù¹Ô캯ÊýÒ»´Î¡£Ã¿µ÷Óù¹Ô캯ÊýÒ»´Î£¬¾²Ì¬ Êý¾Ý³ÉÔ±total¾ÍÔö¼Ó1£¬Ã¿³·ÏûÒ»¸ö¶ÔÏó¾Íµ÷ÓÃÎö¹¹º¯ÊýÒ»´Î¡£Ã¿µ÷ÓÃÎö ¹¹º¯ÊýÒ»´Î£¬¾²Ì¬Êý¾Ý³ÉÔ±total¾Í¼õÉÙ1¡£ [4_15] ÔËÐнá¹ûÊÇ£º Here?s the program output. Let?s generate some stuff¡ Counting at 0 Counting at 1 Counting at 2 Counting at 3 Counting at 4 Counting at 5 30 Counting at 6 Counting at 7 Counting at 8 Counting at 9 ˵Ã÷£ºÔÚ³ÌÐòÖÐmain()Ö»°üÀ¨ÁËÒ»¸öreturnÓï¾ä£¬µ«¾¹È»ÓÐÄÚÈÝÊä³ö£¡Ê²Ã´Ê±ºò µ÷ÓÃÁ˹¹Ô캯Êý£¿¹¹Ô캯ÊýÔÚ¶ÔÏó±»¶¨Òåʱµ÷Óá£ÄÇô¶ÔÏóanObjectÊǺÎʱ±»µ÷ÓõÄÄØ£¿ÊÇÔÚmain()֮ǰ£¬Óï¾ä¡±test anObject¡±´¦¡£Òò´Ë£¬anObjectµÄ¹¹Ô캯ÊýÊÇÏÈÓÚmain()±»µ÷Óõġ£ÔÚmain()֮ǰµÄËùÓÐÈ«¾Ö±äÁ¿¶¼ÊÇÔÚmain()¿ªÊ¼Ö®Ç°¾Í½¨Á¢Á˵ġ£Ó¦¸Ã¾¡¿ÉÄܱÜÃâʹÓÃÈ«¾Ö±äÁ¿£¬ÒòΪȫ¾Ö±äÁ¿ÓпÉÄÜÒýÆðÃû³Æ³åÍ»£¬Ê¹³ÌÐòµÄÖ´Ðнá¹ûºÍÔ¤ÏëµÄ²»Ò»Ñù¡£ [4_16] [4_17]¹¹½¨Ò»¸öÀàbook£¬ÆäÖк¬ÓÐ2¸ö˽ÓÐÊý¾Ý³ÉÔ±quºÍprice£¬½¨Á¢Ò» ¸öÓÐ5¸öÔªËØµÄÊý×é¶ÔÏ󣬽«qu³õʼ»¯Îª1~5£¬½«price³õʼ»¯ÎªquµÄ10 ±¶¡£ÏÔʾÿ¸ö¶ÔÏóµÄqu*price ´ð°¸¼ûÏ£º #include book(int a,int b) { qu=a; price=b; } void show_money() { cout< int qu,price; }; main() { book ob[5]={ book(1,10),book(2,20), 31 book(3,30),book(4,40),book(5,50) }; //16ÌâÓÃÏÂÃæÓï¾ä /*int i; for(i=0;i<5;i++) ob[i].show_money(); return 0;*/ //17ÌâÓÃÏÂÃæµÄÓï¾ä int i; book *p; p=&ob[4]; for(i=0;i<5;i++) { p->show_money(); p--; } return 0; } [4_18]ʹÓÃC++µÄ ¼ûÊé139Ò³Ìâ #include 32 } void input(int p,int c); void compute(); void print(); private: int price; int count; long total; }; void toy::input(int p,int c) { price=p; count=c; } void toy::compute() { total=(long)price*count; } void toy::print() { cout<<\count=\total=\} void main() { toy te(2,100);//²âÊÔ¹¹Ô캯Êý toy *ob; ob=new toy[6]; ob[0].input(25,130); ob[0].input(25,130); ob[1].input(30,35); ob[2].input(15,20); 33 ob[3].input(25,120); ob[4].input(45,10); ob[5].input(85,65); for(int i=0;i<6;i++) ob[i].compute(); // clrscr(); for(i=0;i<6;i++) ob[i].print(); delete ob; } [4_19]¹¹½¨Ò»¸öÀàstock ¼ûÊé139Ò³ ´ð°¸ÈçÏ£º#include { strcpy(stockcode,\\} stock(char code[],int q=1000,float p=8.98) { strcpy(stockcode,code); quan=q; price=p; } void print(void) 34 { cout< cout<<\\\ } private: char stockcode[SIZE]; int quan; float price; }; main() { stock st1(\ st1.print(); stock st2; char stockc[]=\ st2=stockc; st2.print(); return 0; } ˵Ã÷£ºÖ´ÐÐÒÔÏÂÓï¾ä£¬¿ÉÔÚ¶¨Òå¶ÔÏóµÄͬʱ£¬¸øÊý¾Ý³ÉÔ±ÉèÖóõÖµ¡£µ«¹¹Ô캯Êý µÄ²ÎÊý±ØÐ붨ÒåΪȱʡֵ£º stock st2; char stockc[]=¡±600002¡±; st2=stockc; st2.print(); ¶¨Òå²»º¬µÚ2ºÍµÚ3¸ö²ÎÊýµÄ¶ÔÏóst2ʱ£¬quanµÄֵΪ1000£¬priceµÄÖµ 35 Ϊ8.98 [4_20]±àдһ¸öÓÐ¹Ø¹ÉÆ±µÄ³ÌÐò£¬¼ûÊé139Ò³Ìâ #include shang_stock(int g,int s,int p); //¹¹Ô캯Êý friend void shang_count(const shang_stock ss);//¼ÆËãÉϺ£µÄ //¹ÉƱ×ÜÊý friend void count(const shang_stock ss,const shen_stock zs); //¼ÆËãÉϺ£ºÍÉîÛÚµÄ¹ÉÆ±×ÜÊý private: int general; //ÆÕͨ¹ÉƱ¸öÊý int st; //ST¹ÉƱ¸öÊý int pt; //PT¹ÉƱ¸öÊý }; shang_stock::shang_stock(int g,int s,int p)//¹¹Ô캯Êý { general=g; st=s; pt=p; } class shen_stock { int general; //ÆÕͨ¹ÉƱ¸öÊý 36 int st; //ST¹ÉƱ¸öÊý int pt; //PT¹ÉƱ¸öÊý public: shen_stock(int g,int s,int p);//¹¹Ô캯Êý friend void shen_count(const shen_stock es);//¼ÆËãÉîÛÚµÄ¹ÉÆ±×ÜÊý friend void count(const shang_stock ss,const shen_stock zs); //¼ÆËãÉϺ£ºÍÉîÛÚµÄ¹ÉÆ±×ÜÊý }; shen_stock::shen_stock(int g,int s,int p)//¹¹Ô캯Êý { general=g; st=s; pt=p; } main() { shang_stock shanghai(1600,20,10);//½¨Á¢¶ÔÏó //±íʾÉϺ£ÓÐ1600Ö§¹ÉƱ£¬20Ö§ST¹ÉƱ£¬10Ö§PT¹ÉƱ shen_stock shenzhen(1500,15,8); //½¨Á¢¶ÔÏó //±íʾÉîÛÚÓÐ1500Ö§¹ÉƱ£¬15Ö§ST¹ÉƱ£¬8Ö§PT¹ÉƱ shang_count(shanghai);//¼ÆËãÉϺ£µÄ¹ÉƱ×ÜÊý shen_count(shenzhen);//¼ÆËãÉîÛÚµÄ¹ÉÆ±×ÜÊý count(shanghai,shenzhen);//¼ÆËãÉϺ£ºÍÉîÛÚµÄ¹ÉÆ±×ÜÊý return 0; } void shang_count(const shang_stock ss)//¼ÆËãÉϺ£µÄ¹ÉƱ×ÜÊý { int s; 37 cout<<\of shanghai are \} void shen_count(const shen_stock es)//¼ÆËãÉîÛÚµÄ¹ÉÆ±×ÜÊý { cout<<\of shanghai are \} void count(const shang_stock ss,const shen_stock es) //¼ÆËãÉϺ£ºÍÉîÛÚµÄ¹ÉÆ±×ÜÊý { int s; s=es.general+es.st+es.pt+ss.general+ss.st+ss.pt; cout<<\of shanghai and shenzhen \} 38 µÚÎåÕ£º¼Ì³ÐÓëÅÉÉúÀà [5_1]´ð£ºÀàµÄ¼Ì³Ð·½Ê½ÓÐpublic(¹«Óм̳Ð)¡¢protected(±£»¤¼Ì³Ð)ºÍprivate(˽Óм̳Ð)3ÖÖ£¬²»Í¬µÄ¼Ì³Ð·½Ê½µ¼ÖÂÔÀ´¾ßÓв»Í¬·ÃÎÊÊôÐԵĻùÀà³ÉÔ±ÔÚÅÉÉúÀàÖеķÃÎÊÊôÐÔÒ²ÓÐËù²»Í¬¡£ £¨1£©»ùÀàÖеÄ˽ÓгÉÔ± ÎÞÂÛÄÄÖּ̳з½Ê½£¬»ùÀàÖеÄ˽ÓгÉÔ±²»ÔÊÐíÅÉÉúÀà¼Ì³Ð£¬¼´ÔÚÅÉÉúÀàÖÐÊDz»¿ÉÖ±½Ó·ÃÎʵġ£ £¨2£©»ùÀàÖеĹ«ÓгÉÔ± µ±ÀàµÄ¼Ì³Ð·½Ê½Îª¹«Óм̳Ðʱ£¬»ùÀàÖеÄËùÓй«ÓгÉÔ±ÔÚÅÉÉúÀàÖÐÈÔÒÔ¹«ÓгÉÔ±µÄÉí·Ý³öÏÖ£»µ±ÀàµÄ¼Ì³Ð·½Ê½ÎªË½Óм̳Ðʱ£¬»ùÀàÖеÄËùÓй«ÓгÉÔ±ÔÚÅÉÉúÀàÖж¼ÒÔ˽ÓгÉÔ±µÄÉí·Ý³öÏÖ£»µ±ÀàµÄ¼Ì³Ð·½Ê½Îª±£»¤¼Ì³Ðʱ£¬»ùÀàÖеÄËùÓй«ÓгÉÔ±ÔÚÅÉÉúÀàÖж¼ÊÇÒÔ±£»¤³ÉÔ±µÄÉí·Ý³öÏÖ¡£ £¨3£©»ùÀàÖеı£»¤³ÉÔ± µ±ÀàµÄ¼Ì³Ð·½Ê½Îª¹«Óм̳Ðʱ£¬»ùÀàÖеÄËùÓб£»¤³ÉÔ±ÔÚÅÉÉúÀàÖÐÈÔÒÔ±£»¤³ÉÔ±µÄÉí·Ý³öÏÖ£»µ±ÀàµÄ¼Ì³Ð·½Ê½ÎªË½Óм̳Ðʱ£¬»ùÀàÖеÄËùÓб£»¤³ÉÔ±ÔÚÅÉÉúÀàÖж¼ÊÇÒÔ˽ÓгÉÔ±µÄÉí·Ý³öÏÖ£ºµ±ÀàµÄ¼Ì³Ð·½Ê½Îª±£»¤¼Ì³Ðʱ£¬»ùÀàÖеÄËùÓб£»¤³ÉÔ±ÔÚÅÉÉúÀàÖÐÈÔÒÔ±£»¤³ÉÔ±µÄÉí·Ý³öÏÖ¡£ [5_2]´ð£ºÅÉÉúÀ಻ÄÜÖ±½Ó·ÃÎÊ»ùÀàµÄ˽ÓгÉÔ±£¬µ«ÊÇ¿ÉÒÔͨ¹ý»ùÀàÌṩµÄ¹«ÓÐ ³ÉÔ±º¯Êý¼ä½ÓµØ·ÃÎÊ»ùÀàµÄ˽ÓгÉÔ± [5_3]´ð£º±£»¤³ÉÔ±¿ÉÒÔ±»ÅÉÉúÀàµÄ³ÉÔ±º¯Êý·ÃÎÊ£¬µ«ÊǶÔÓÚÍâ½çÊÇÒþ²ØÆðÀ´µÄ£¬Íⲿº¯Êý²»ÄÜ·ÃÎÊËü¡£Òò´Ë£¬ÎªÁ˱ãÓÚÅÉÉúÀàµÄ·ÃÎÊ£¬¿ÉÒÔ½«»ùÀà˽ÓгÉÔ±ÖÐÐèÒªÌṩ¸øÅÉÉúÀà·ÃÎʵijÉÔ±¶¨ÒåΪ±£»¤³ÉÔ±¡£C++¹æ¶¨£¬ÅÉÉúÀà¶ÔÓÚ±£»¤³ÉÔ±µÄ¼Ì³ÐÓ빫ÓгÉÔ±µÄ¼Ì³ÐºÜÏàËÆ£¬Ò²·ÖΪÁ½ÖÖÇé¿ö£ºÈôΪ¹«ÓÐÅÉÉú£¬Ôò»ùÀàÖеı£ 39 »¤³ÉÔ±ÔÚÅÉÉúÀàÖÐҲΪ±£»¤³ÉÔ±£»ÈôΪ˽ÓÐÅÉÉú£¬Ôò»ùÀàÖеı£»¤³ÉÔ±ÔÚÅÉÉúÀàÖгÉΪ˽ÓгÉÔ±¡£ [5_4]´ð£ºÍ¨³£Çé¿öÏ£¬µ±´´½¨ÅÉÉúÀà¶ÔÏóʱ£¬Ê×ÏÈÖ´ÐлùÀàµÄ¹¹Ô캯Êý£¬ËæºóÔÙÖ´ÐÐÅÉÉúÀàµÄ¹¹Ô캯Êý£»µ±³·ÏûÅÉÉúÀà¶ÔÏóʱ£¬ÔòÏÈÖ´ÐÐÅÉÉúÀàµÄÎö¹¹º¯Êýº¯Êý£¬ËæºóÔÙÖ´ÐлùÀàµÄÎö¹¹º¯Êý¡£ [5_5]´ð£ºµ±»ùÀàµÄ¹¹Ô캯ÊýûÓвÎÊý»òûÓÐÏÔʾ¶¨Òå¹¹Ô캯Êýʱ£¬ÅÉÉúÀà¿ÉÒÔ ²»Ïò»ùÀà´«µÝ²ÎÊý£¬ÉõÖÁ¿ÉÒÔ²»¶¨Òå¹¹Ô캯Êý¡£µ±»ùÀຬÓдø²ÎÊýµÄ¹¹Ô캯Êýʱ£¬ÅÉÉúÀà±ØÐ붨Òå¹¹Ô캯Êý£¬ÒÔÌṩ°Ñ²ÎÊý´«µÝ¸ø»ùÀ๹Ô캯ÊýµÄ;¾¶¡£ ÅÉÉúÀ๹Ô캯ÊýµÄÒ»°ã¸ñʽÈçÏ£º ÅÉÉúÀ๹Ô캯ÊýÃû£¨²ÎÊý±í£©£º»ùÀ๹Ô캯ÊýÃû£¨²ÎÊý±í£© { } ÆäÖлùÀ๹Ô캯ÊýµÄ²ÎÊý£¬Í¨³£À´Ô´ÓÚÅÉÉúÀ๹Ô캯ÊýµÄ²ÎÊý±í£¬Ò²¿ÉÒÔÓó£ÊýÖµ¡£ÓÉÓÚÎö¹¹º¯ÊýÊDz»´ø²ÎÊýµÄ£¬ÔÚÅÉÉúÀàÖÐÊÇ·ñ¶¨ÒåÎö¹¹º¯ÊýÓëËüËùÊôµÄ»ùÀàÎ޹أ¬»ùÀàµÄÎö¹¹º¯Êý²»»áÒòΪÅÉÉúÀàûÓÐÎö¹¹º¯Êý¶øµÃ²»µ½Ö´ÐУ¬ËüÃǸ÷×ÔÊǶÀÁ¢µÄ¡£ [5_6]´ð£ºµ±Ò»¸öÅÉÉúÀà¾ßÓжà¸ö»ùÀàʱ£¬ÕâÖÖÅÉÉú·½·¨³ÆÎª¶à¼Ì³Ð¡£¶à¼Ì³Ð¹¹Ô캯ÊýµÄÖ´ÐÐ˳ÐòÓëµ¥¼Ì³Ð¹¹Ô캯ÊýµÄÖ´ÐÐ˳ÐòÏàͬ£¬Ò²ÊÇ×ñÑÏÈÖ´ÐлùÀàµÄ¹¹Ô캯Êý£¬ÔÙÖ´ÐжÔÏó³ÉÔ±µÄ¹¹Ô캯Êý£¬×îºóÖ´ÐÐÅÉÉúÀ๹Ô캯ÊýµÄÔÔò¡£ÔÚ¶à¸ö»ùÀàÖ®¼äÔòÑϸñ°´ÕÕÅÉÉúÀàÉùÃ÷ʱ´Ó×óµ½ÓÒµÄ˳ÐòÀ´ÅÅÁÐÏȺ󡣶øÎö¹¹º¯ÊýµÄÖ´ÐÐ˳Ðò¸ÕºÃÓë¹¹Ô캯ÊýµÄÖ´ÐÐ˳ÐòÏà·´¡£ [5_7]ÔÚÀàµÄÅÉÉúÖÐΪºÎÒªÒýÈëÐé»ùÀࣿÐé»ùÀ๹Ô캯ÊýµÄµ÷ÓÃ˳ÐòÊÇÈçºÎ¹æ¶¨µÄ£¿ µ±ÒýÓÃÅÉÉúÀàµÄ³ÉԱʱ£¬Ê×ÏÈÔÚÅÉÉúÀà×ÔÉíµÄ×÷ÓÃÓòÖÐѰÕÒÕâ¸ö³ÉÔ±£¬Èç¹ûûÓÐÕÒµ½£¬Ôòµ½ËüµÄ»ùÀàÖÐѰÕÒ¡£Èç¹ûÒ»¸öÅÉÉúÀàÊÇ´Ó¶à¸ö»ùÀàÅÉÉúÀ´µÄ£¬¶øÕâЩ»ù 40 ÀàÓÖÓÐÒ»¸ö¹²Í¬µÄ»ùÀ࣬ÔòÔÚÕâ¸öÅÉÉúÀàÖзÃÎÊÕâ¸ö¹²Í¬µÄ»ùÀàÖеijÉԱʱ£¬¿ÉÄÜ»á²úÉú¶þÒåÐÔ¡£ÎªÁ˽â¾öÕâÖÖ¶þÒåÐÔ£¬C++ÒýÈëÁËÐé»ùÀàµÄ¸ÅÄî¡£ Ðé»ùÀ๹Ô캯ÊýµÄµ÷ÓÃ˳ÐòÊÇ£º £¨1£©Èôͬһ²ã´ÎÖаüº¬¶à¸öÐé»ùÀ࣬ÕâЩÐé»ùÀàµÄ¹¹Ô캯Êý°´ËüÃǵÄ˵Ã÷µÄÏȺó´ÎÐòµ÷Óᣠ£¨2£©ÈôÐé»ùÀàÓÉ·ÇÐé»ùÀàÅÉÉú¶øÀ´£¬ÔòÈÔÈ»Ïȵ÷ÓûùÀ๹Ô캯Êý£¬ÔÙµ÷ÓÃÅÉÉúÀàµÄ¹¹Ô캯Êý¡£ £¨3£©Èôͬһ²ã´ÎÖÐͬʱ°üº¬Ðé»ùÀàºÍ·ÇÐé»ùÀ࣬ӦÏȵ÷ÓÃÐé»ùÀàµÄ¹¹Ô캯Êý£¬ÔÙµ÷Ó÷ÇÐé»ùÀàµÄ¹¹Ô캯Êý£¬×îºóµ÷ÓÃÅÉÉúÀ๹Ô캯Êý¡£ [5_8]´ð£ºA [5_9]´ð£ºC ˵Ã÷£ºC++Öм̳з½Ê½ÓÐ3ÖÖ£ºË½Óм̳С¢±£»¤¼Ì³ÐºÍ¹«Óм̳С£ [5_10]´ð£ºC [5_11]´ð£ºC ˵Ã÷£ºset_price()ºÍprint_price()ÔÚÅÉÉúÀàÖÐÊÇ˽ÓгÉÔ±º¯Êý£¬²»Äܱ»ÅÉÉúÀà¶ÔÏóÖ±½Ó·ÃÎÊ£¬ËùÒÔAºÍDÊÇ´íÎóµÄ¡£codeÊÇ˽ÓÐÊý¾Ý³ÉÔ±£¬²»ÄÜÖ±½Ó´æÈ¡£¬ËùÒÔBÒ²ÊÇ´íÎóµÄ¡£ [5_12]´ð£ºB ˵Ã÷£ºcodeÊÇ˽ÓÐÊý¾Ý³ÉÔ±£¬²»ÄÜÖ±½Ó´æÈ¡£¬ËùÒÔBÊÇ´íÎóµÄ¡£ [5_13]´ð£ºÔËÐнá¹ûÊÇ£º Person Name=Angel Student Name=Angel Employee Name=Angel SideLine Name=Angel ˵Ã÷£º£¨1£©´Ó½á¹û¿´³ö£¬³ÌÐòÖеÄÐé»ùÀàPersonµÄ¹¹Ô캯ÊýÖ»Ö´ÐÐÁËÒ»´Î¡£µ±ÀàSideLineµÄ¹¹Ô캯Êýµ÷ÓÃÁËÐé»ùÀàPersonµÄ¹¹Ô캯ÊýÖ®ºó£¬ÀàStudentºÍÀàEmployee¶ÔÀàSideLineµÄ¹¹Ô캯ÊýµÄµ÷Óñ»ºöÂÔÁË£¬ÕâÊdzõʼ»¯Ðé»ùÀàºÍ·ÇÐé 41 »ùÀ಻ͬµÄµØ·½¡££¨2£©¶àÖØ¼Ì³ÐµÄ¹¹Ô캯ÊýÖ´ÐÐ˳Ðò×ñÑÏÈÖ´ÐлùÀàµÄ¹¹Ô캯Êý£¬ÔÙÖ´ÐжÔÏó³ÉÔ±µÄ¹¹Ô캯Êý£¬×îºóÖ´ÐÐÅÉÉúÀ๹Ô캯ÊýµÄÔÔò¡£ [5_14]ÔËÐнá¹ûÊÇ£º40 50 10 20 30 40 50 60 [5_15]Ð޸ĺóµÄ³ÌÐòÈçÏ£º #include table(int p,int q) { i=p; j=q; } void ascii(void); }; void table::ascii(void) { int k=1; for(;i { cout< cout<<\} class der_table:public table 42 { protected: char *c; public: der_table(int p,int q,char *m):table(p,q) { c=m; } void print(void); }; void der_table::print(void) { cout< void main() { der_table ob('a','z',\ ob.print(); } [5_16]³ÌÐò±àÖÆÈçÏ£º #include time(int h,int m,int s) { hours=h; minutes=m; seconds=s; } 43 virtual void display() { cout< int hours,minutes,seconds; }; class date { public: date(int m,int d,int y) { month=m; day=d; year=y; } virtual void display() { cout< int month,day,year; }; class birthtime:public time,public date//¼Ó´ËÀà { public: birthtime(char *cn,int mm,int dd,int yy,int hh,int mint,int ss) :time(hh,mint,ss),date(mm,dd,yy) { strcpy(childname,cn); } void display() { cout< 44 cout< time::display(); } protected: char childname[20]; }; void main() { birthtime yx(\ yx.display(); } [5_17]³ÌÐòÈçÏ #include { name=NULL; } animal(char *n); ~animal() { delete name; } virtual void whoami(); protected: char *name; }; class cat:public animal 45 { public: cat():animal() { } cat(char *n):animal(n) { } void whoami(); }; class tiger:public cat { public: tiger():cat() { } tiger(char *n):cat(n) { } void whoami(); }; animal::animal(char *n) { name=new char [strlen(n)+1]; strcpy(name,n); } void animal::whoami() { cout<<\void cat::whoami() { cout<<\void tiger::whoami() { cout<<\ 46 void main() //Ìí¼ÓµÄÖ÷º¯Êý { cat cat(\ cat.whoami(); tiger tiger(\ tiger.whoami(); } [5_18]ʵÏÖ±¾Ì⹦ÄܵijÌÐòÈçÏ£º #include building(int f,int r,double ft) { floors=f; rooms=r; footage=ft; } protected: int floors;//²ãÊý int rooms; //·¿¼äÊý double footage;//ƽ·½Êý }; class house:public building { public: house(int f,int r,double ft,int br,int bth) nbsp; :building(f,r,ft) { bedrooms=br; bathrooms=bth; } 47 void show() { cout<<\\ cout<<\\<<'\\n'; cout<<\footage: \ cout<<\\ cout<<\\ } private: int bedrooms;//ÎÔÊÒÊý int bathrooms;//Ô¡ÊÒÊý }; class office:public building { public: office(int f,int r,double ft,int p,int ext) :building(f,r,ft) { phones=p; extinguishers=ext; } void show() { cout<<\\ cout<<\\ cout<<\footage: \ cout<<\\ cout<<\extinguishers: \ cout< int phones;//µç»°Êý int extinguishers;//Ãð»ðÆ÷Êý }; 48 main() { house h_ob(2,12,5000,6,4); office o_ob(4,25,12000,30,8); cout<<\\\n\ h_ob.show(); cout<<\\\n\ o_ob.show(); return 0; } [5_19]ʵÏÖ±¾Ì⹦ÄܵijÌÐòÈçÏ£º #include { cout<<\input name: \ cin>>name; cout<<\certificate no: \ cin>>id; } void print() { cout<<\certificate no: \ void printname() { cout< char name[l],id[l]; }; 49 } class stud { public: void input() { cout<<\input address: \ cin>>addr; cout<<\input telphone no: \ cin>>tel; } void print() { cout<<\address: \ cout<<\telphone no: \ } private: char addr[l]; char tel[l]; }; class student:private person { public: void input() { person::input(); cout<<\input years old: \ cin>>old; cout<<\input score no: \ cin>>sno; } void print() { person::print(); cout<<\tears old: \ 50