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C ×Ô¿¼ÀúÄêÕæÌâС¼¯

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  • 3 ´ÎÏÂÔØ
  • 2025/6/7 9:44:55

void Print(______) {

______£» }

void main() {

ClassA a£» ClassB b£» Print(a)£» Print(b)£» }

50.ÏÂÁгÌÐòµÄÔËÐнá¹ûÈçÏ£º x=22£¬y=22

¸ù¾Ý½á¹û½«³ÌÐò²¹³äÍêÕû¡£ #include

template <______> void f(______) {

if(sizeof(T1)>sizeof(T2)) x=(T1)y£» else

y=(T2)x£» }

void main(){ double x=134.2£» int y=22£» f(x£¬y)£»

cout<<¡åx=¡å<}

Îå¡¢³ÌÐò·ÖÎöÌâ(±¾´óÌâ¹²2СÌ⣬ÿСÌâ5·Ö£¬¹²10·Ö) Çë¸ø³öÏÂÃæ³ÌÐòµÄÊä³ö½á¹û 51. #include < iostream. h > class Class {

public:

static int var; Class() {

var+ +; } };

int Class£º£ºvar = 0£» void main() {

cout < < ¡åClass£º£ºvar =¡å < < Class: : var < < endl; Class cl ;

cout < <¡åcl. var=¡å < Class c2, c3 ;

cout < < ¡åc2. var =¡å < < c2. var < < endl; }

52. #include < iostream. h > class A {

public: A();

void Show() ; ~A(); private:

static int c; }£» int A£º£ºc =0; A::A() {

cout < < ¡åconstructor.¡å < < endl; c+ =10; }

void A: :Show() {

cout< < ¡åc=¡å < } A£º£º~A() {

cout < < ¡ådestructor. ¡å < < endl; }

void main() {

A a£¬b£» a. Show()£» b. Show()£» }

Áù¡¢³ÌÐòÉè¼ÆÌâ(±¾´óÌâ¹²lСÌ⣬¹²10·Ö)

53.ÀûÓÃLOCATIONÀ࣬ʹÓü̳ж¨ÒåÔ²ÀàCIRCLE£¬Ô²ÓÉÔ²ÐĺͰ뾶¹¹³É¡£ÌṩµÃµ½Ô²ÐÄ×ø±êºÍ°ë¾¶µÄ³ÉÔ±º¯Êý¡¢ÒÔ¼°¼ÆËãÔ²µÄÖܳ¤ºÍÃæ»ýµÄ³ÉÔ±º¯Êý¡£ÔÚÖ÷³ÌÐòÖд´½¨Á½¸öÔ²AºÍB£¬Ô²ÐÄ×ø±ê·Ö±ðΪ(0£¬3)¡¢(3£¬7)£¬°´ÈçϸñʽÊä³öÁ½¸öÔ²µÄÔ²ÐÄ×ø±ê¡¢Öܳ¤ºÍÃæ»ý£¬²¢¼ÆËãºÍÊä³öÁ½¸öÔ²µÄÔ²ÐÄÖ®¼äµÄ¾àÀë¡£¿¼ÊÔ´óÊÕ¼¯ÕûÀí A£º(xl£¬y1£¬r1)£¬Girth=g1£¬Area=a1 B£º(x2£¬y2£¬r2)£¬Girth=g2£¬Area=a2 A(xl£¬y1)£¬B(x2£¬y2)£¬Distance=d

¶¨ÒåLOCATIONÀ࣬¸ÃÀàûÓС°¼Ì³Ð¡±µÈÏÖÏó¡£×¢Òâ¶þÎ¬×ø±êµãÖ®¼äµÄ¾àÀ빫ʽ¡£

class LOCATION{ double x£¬y£»

public£º virtual double getx()const{return x£»}£» virtual double gety()const{return y£»}£» virtual double dist(LOCATION &s)const£»

LOCATION(double x£¬double y)£ºx(x)£¬y(y){}£»}£» double LOCATION£º£ºdist(LOCATION £¦s)const{ double xd=s.x ¡ª x£¬yd=s.y ¡ª y£» return sqrt(xd*xd+yd*yd)£»}

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