プログラム空欄


#include<iostream>
using namespace std;
class A
 {
private:
	int a;
public:
	A() {a=0;}
	A (int aa){a=aa;}  //      ,   aa       a
};
void main() 
{
	A *p;  //   A     p
	p=new A(5);// p             
    system("pause");
}
#include<iostream>
using namespace std;
class A 
{
private:
	int *a; 
	int n; 
	int MaxLen;
 public:
	A(): a(0), n(0), MaxLen(0) {}
	~A();
	A(int *aa, int nn, int MM);
	int GetValue(int i) {return a[i];} 
};
A::A(int *aa, int nn, int MM)
{
	n=nn;
	MaxLen=MM;
	if(n>MaxLen) exit(1);
	a=new int[MaxLen];
	for(int i=0;i<MaxLen;++i)  // i      aa           a        
	{
		a[i]=aa[i];
	}
}
A::~A ()
{
	delete []a;  //         ,       a      
}

void main()
{
	int b[10]={1,2,3,4,5,6,7,8,9,10};
	A r(b,10,10);
	int i,s=0;
	for( i=0;i<10;i++) 		// i     , r   a                s 
	{
		s+=r.GetValue(i);
	}
	cout<<"s="<<s<<endl;
	system("pause");
}
           。       ?         for   ,         ,        !!           ,     !!!    s=55;         ~~