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ÒÑÖªÓÐ20¸öÔªËØintÀàÐÍÏòÁ¿V1£¬ÈôÓÃV1³õʼ»¯ÎªV2ÏòÁ¿£¬Óï¾äÊÇ___¡£ ´ð°¸£ºector £Û½âÎö£Ý²ÉÓÃÏòÁ¿³õʼ»¯ÁíÒ»¸öÏòÁ¿µÄÐÎʽ£ºvector Èý¡¢¸Ä´íÌâ(±¾´óÌâ¹²5СÌ⣬ÿСÌâ2·Ö£¬¹²10·Ö)ÏÂÃæµÄÀඨÒåÖÐÓÐÒ»´¦´íÎó£¬ÇëÓÃÏ ºáÏß±ê³ö´íÎóËùÔÚÐв¢¸ø³öÐÞ¸ÄÒâ¼û¡£ 1. #include Test(int i,int j){x=i,y=j;} int getx(){return x;} int gety(){return y;} }; void main() {Test mt(10,20); cout< } ´ð°¸£ºint x,y=20;ÔÚÀàÄÚ²¿²»ÄܶÔÊý¾Ý³ÉÔ±Ö±½Ó¸³Öµ¡£ £ÛÐ޸ģÝint x,y; 2. #include fun(int i,int j) {x=i;y=j;} show() {cout<<\if(y) cout<<\cout< void main() {Test a; a.fun(1); a.show(); a.fun(2,4); a.show(); } ´ð°¸£ºint i,int jµ÷ÓÃʱ£¬¼ÈÓÐÒ»¸ö²ÎÊý£¬Ò²ÓÐÁ½¸ö²ÎÊý£¬ÇÒûÓÐÖØÔØ£¬ËùÒÔ²ÎÊýÐèÒª´øÄ¬ÈÏ Öµ¡£ËùÒÔint i,int j´íÎó¡£ £ÛÐ޸ģÝint i,int j£½0//×¢jÖ»ÒªÓÐÒ»¸öintÀàÐ͵ÄÊý¾Ý¾ÍÐС£ 3. #include virtual void fun()=0; A(int a) {i=a;} }; class B:public A {int j; public: void fun() {cout<<\£Ün\B(int m,int n=0):A(m),j(n){} }; void main() {A *pa; B b(7); pa=&b; } ´ð°¸£ºB(int m,int n=0):A(m),j(n){}ÒòΪ»ùÀàÊdzéÏóÀ࣬²»Äܱ»ÊµÀý»¯£¬ËùÒÔÔÚÅÉÉúÀàÖв»ÄÜ µ÷Óóõʼ»¯»ùÀà¶ÔÏó¡£ËùÒÔB(int m,int n=0):A(m),j(n){}´íÎó£¬É¾È¥A(m)¡£ £ÛÐ޸ģÝB(int m,int n=0):j(n){} 4. #include {cout< cout< void fun(X); }; void fun(X t) {cout< ´ð°¸£ºcout< Bas(char *s=\£Ü0\void show(); protected: char name£Û20£Ý; }; Bas b; void show() {cout<<\void main() {Bas d2(\show(); } ´ð°¸£ºvoid show();ÊÇÆÕͨº¯Êý²»ÊdzÉÔ±º¯Êý£¬µ«ÊÇÒª·ÃÎÊÀà³ÉÔ±£¬ÐèÒª¶¨ÒåΪÓÑÔªº¯Êý¡£ £ÛÐ޸ģÝfriend void show(); ËÄ¡¢Íê³É³ÌÐòÌâ(±¾´óÌâ¹²5СÌ⣬ÿСÌâ4·Ö£¬¹²20·Ö) 1. ÔÚÏÂÃæ³ÌÐòºáÏß´¦ÌîÉÏÊʵ±×־䣬ÒÔʹ¸Ã³ÌÐòÖ´Ðнá¹ûΪ£º 50 4 34 21 10 0 7.1 8.1 9.1 10.1 11.1 #include for (int i=0;i t=a£Ûi£Ý, a£Ûi£Ý=a£Ûn-1-i£Ý, a£Ûn-1-i£Ý=t; } void main () {int a£Û5£Ý={10,21,34,4,50}; double d£Û6£Ý={11.1,10.1,9.1,8.1,7.1}; f(a,5);f(d,6); for (int i=0;i<5;i++) cout < cout << d£Ûi£Ý<< \cout << endl; } ´ð°¸£ºT a£Û£Ý,int n,T t=0; £Û½âÎö£Ý²»Í¬µÄÊý¾ÝÀàÐ͵ĵ÷Óã¬Ê¹ÓÃÁËÄ£°å¡£fº¯ÊýÔö¼Ót±äÁ¿£¬ÒòΪʵ²ÎÀàÐͲ»Í¬£¬ËùÒÔtµÄ ÀàÐÍÓ¦¸ÃÊÇTÀàÐ͵ġ£ 2. ÔÚÏÂÃæ³ÌÐòµÄµ×»Ïß´¦ÌîÉÏÊʵ±µÄ×־䣬ʹ¸Ã³ÌÐòÖ´Ðнá¹ûΪ40¡£ #include int Getnum() {return Test::x+7;} }; _______; void main() {Test test; cout< ´ð°¸£ºstatic int x;,int Test::x=30; £Û½âÎö£Ý´Ó³ÉÔ±º¯Êý·ÃÎÊ·½Ê½ÀàÃû£º£º³ÉÔ±¿ÉÖªÊǾ²Ì¬³ÉÔ±ËùÒÔstatic int x;´Ó½á¹ûÒª¶Ô³õʼ »¯Îª30£¬ÇÒÔÚÀàÍâ½øÐгõʼ»¯£¬ int Test::x=30;¡£ 3. ÔÚÏÂÁгÌÐòµÄ¿Õ¸ñ´¦ÌîÉÏÊʵ±µÄ×־䣬ʹÊä³öΪ£º0£¬2£¬10¡£ #include class Magic {double x; public: Magic(double d=0.00):x(fabs(d)) {} Magic operator+(______) { return Magic(sqrt(x*x+c.x*c.x)); } _______operator<<(ostream & stream,Magic & c) { stream< void main() {Magic ma; cout< ´ð°¸£ºoperator+(Magic&c),friend ostream&operator £Û½âÎö£Ý¶Ô¼Ó·¨½øÐÐÖØÔØ£¬operator+(Magic & c)£¬ÊǶԲåÈë·û½øÐÐÖØÔØ£¬Òª·ÃÎʳÉÔ±ËùÒÔ¶¨Òå ΪÓÑÔªº¯Êý£¬friend ostream & operator¡£ 4. ÏÂÃæÊÇÒ»¸öÊäÈë°ë¾¶£¬Êä³öÆäÃæ»ýºÍÖܳ¤µÄC++³ÌÐò£¬ÔÚÏ»®Ïß´¦ÌîÉÏÕýÈ·µÄÓï¾ä¡£ #include double l=2.0*pi*rad; double s=pi*rad*rad; cout<<\£Ün The long is£º\cout<<\£º\ ´ð°¸£ºusing namespace std,#define pi 3.14159 £Û½âÎö£Ý½øÐÐÊäÈë»òÊä³öÒªÒýÈëiostream, ËùÒÔusing namespace std;´Ó±êµã¿´Ã»Óзֺţ¬ËùÒÔ Ê¹Óú궨Ò壬#define pi 3.14159¡£ 5. ³ÌÐòʵÏÖ´óд×Öĸת»»³ÉСд×Öĸ¡£ #include cin>>a; if(_______) a=a+i; cout< ´ð°¸£ºint i=32;£¬a>=A && a<=Z £Û½âÎö£Ý´óд×Öĸ±äСд×ÖĸÏà²î32£¬ÐèÒª¶ÔiÉùÃ÷²¢³õʼ»¯¡£´óд×Öĸ±äСд×Öĸ¡£ÒªÅжÏ×Ö ·ûÊÇ´óд×Öĸ¡£ Îå¡¢³ÌÐò·ÖÎöÌâ(±¾´óÌâ¹²4СÌ⣬ÿСÌâ5·Ö£¬¹²20·Ö) 1. ¸ø³öÏÂÃæ³ÌÐòÊä³ö½á¹û¡£ #include virtual void print() {cout<< \}; class b:public a {}; class c:public b {public: void print(){cout<<\}; void show(a *p) {(*p).print(); } void main() {a a; b b; c c; show(&a); show(&b); show(&c); } ´ð°¸£ºa prog... a prog... c prog... £Û½âÎö£Ý¿¼²é¶à̬ÐԵġ£aÀà¶ÔÏóµ÷Óñ¾ÉíµÄÐ麯Êý£¬bÀàÒòΪûÓи²Ð´print£¬ËùÒÔÈÔÈ»µ÷Óûù ÀàµÄÐ麯Êý¡£¶øcÀàÖØÐ¶¨ÒåprintÐ麯Êý£¬ËùÒÔµ÷ÓÃcÀàµÄprint¡£ 2. ¸ø³öÏÂÃæ³ÌÐòÊä³ö½á¹û¡£ #include bool fun(long n); void main() {long a=10,b=30,l=0; if(a%2==0) a++; for(long m=a;m<=b;m+=2) if(fun(m)) {if(l++==0) cout < cout < bool fun(long n) {int sqrtm=(int)sqrt(n); for(int i=2;i<=sqrtm;i++) if(n%i==0) return false; return true; } ´ð°¸£º11 13 17 19 23 29 £Û½âÎö£ÝÑ»·ÌåÓÃÀ´ÅжÏnÊÇ·ñÊÇÖÊÊýµÄº¯Êý,ÔÚmainº¯ÊýÅжÏ10¡«30Ö®¼äÖÊÊý¡£ 3. ¸ø³öÏÂÃæ³ÌÐòÊä³ö½á¹û¡£ #include Test(int i,int j=0) {x=i;y=j;} int get(int i,int j) {return i+j;} }; void main() {Test t1(2),t2(4,6); int (Test::*p)(int,int=10); p=Test::get; cout<<(t1.*p)(5)< cout<<(p1->*p)(7,20)< ´ð°¸£º15 27 £Û½âÎö£ÝÖ¸ÏòÀà³ÉÔ±º¯ÊýµÄÖ¸ÕëµÄʹÓã¬*pÖ¸ÏòTestÀàÖÐÓÐÁ½¸ö²ÎÊýµÄº¯ÊýµÄÒ»¸öÖ¸Õë¡£ P£½Test::get.ÕâÑùp¾ÍºÍget·¢ÉúÁËÁªÏµ¡£(t1.*p)(5)µÈ¼ÛÓÚµ÷ÓÃÒ»¸ö²ÎÊýµÄgetº¯Êý¡£ 4. #include class student {char name£Û8£Ý; int deg; char level£Û7£Ý; friend class process; // ˵Ã÷ÓÑÔªÀà public: student(char na£Û£Ý,int d) { strcpy(name,na); deg=d; } }; class process { public: void trans(student &s) {int i=s.deg/10; switch(i) {case 9: strcpy(s.level, \ÓÅ\case 8: strcpy(s.level,\Á¼\case 7: strcpy(s.level,\ÖÐ\case 6: strcpy(s.level,\¼°¸ñ\default: strcpy(s.level,\²»¼°¸ñ\} } void show(student &s) {cout< void main() { student st£Û£Ý={student(\ÕÅÈý\ÀîËÄ\ÍõÎå \ËïÁù\process p; cout<<\½á¹û:\ÐÕÃû\³É¼¨\µÈ¼¶\for(int i=0;i<4;i++) { p.trans(st£Ûi£Ý); p.show(st£Ûi£Ý);} } ´ð°¸£º½á¹û:ÐÕÃû³É¼¨µÈ¼¶ ÕÅÈý78ÖÐ ÀîËÄ92ÓÅ ÍõÎå62¼°¸ñ ËïÁù88Á¼ Áù¡¢³ÌÐòÉè¼ÆÌâ(±¾´óÌâ¹²1СÌ⣬¹²10·Ö) 1. 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