内容发布更新时间 : 2025/7/5 15:10:36星期一 下面是文章的全部内容请认真阅读。
41.#include
main( ) {
int x=5,y=6;
const int * p=&x;
*p=y;
cout<<*p<
42.#include
class f{
private:int x,y;
public:f1( ){x=0;y=0;}
print( ){cout<
main( ){
f a;
a.f1(1,1);
a.print( ); }
43.#include
class f{
private:int x=0,y=0;
public:void f1(int a,int b){x=a;y=b;}
void get( ){cout<
};
main( ){
f a;
a.f1(1,3);
a.get ( );
}
44.#include
class point{private:float x;
public:void f(float a){x=a;}
void f( ){x=0;}
friend float max(point& a,point& b);
};
float max(point& a,point& b)
{return(a.x>b.x)? a.x:b.x;}
main( ){
point a,b;
a.f(2.2);b.f(3.3);
cout<
}
45.#include
template
class f{
private:T x,y;
public:void f1(T a,T b){x=a;y=b;}
T max( ){retum(x>y)?x:y;} };
main( ){
f a;
a.f1(1.5,3.8); ’
cout<
四、完成程序题(本大题共5小题,每小题4分,共20分)
46.完成下面类中的成员函数的定义。
class point
{
private:
int m,n;
public:
point(int,int);
point(point&);
};
point::point(int a,int b)
{
m=a;
________=b; }
point::point(________)
{
m=t.m;
n=t.n;
}
47.下面是一个输入半径,输出其面积和周长的C++程序,在下划线处填上正确的语句。
#include
using namespace std;
________pi=3.14159;
void main( ) {
double r;
cout<<″r=″;
___________ ;
double l=2.0*pi*r;
double s=pi*r*r;
cout<<″\n The long is:″<
cout<<″The area is:″<
}
48.在下划线处填上缺少的部分。
#include
#include
using namespace std;
class complex
{
public:
int real;
int imag;
complex(int r=0,int i=0)
{
real=r;
imag=i;
}
};
complex operator+(________,complex& b)
{
int r=a.real+b.real;
int i=a.imag+b.imag;
return_________;
}
void main( )