9.12.cpp

这是C++的一部分练习程序!对初学者有一定的帮助作用。

#include <iostream.h>
#include <string.h>
class B
{
  public:
	B()
	{  strcpy(name,"  ");b=0;cout<<"Default constructor called.\n";  }
	B(char *s,double d)
	{  
		strcpy(name,s);
		b=d;
		cout<<"Constructor called.\n";
	}
	~B()
	{  cout<<"Destructor called."<<name<<endl;  }
	void GetB(char *s,double &d)
	{
		strcpy(s,name);
		d=b;
	}
  private:
	char name[20];
	double b;
};
void main()
{
	B *pb;
	double d;
	char s[20];
	pb=new B[4];
	pb[0]=B("Ma",3.5);
	pb[1]=B("Hu",5.8);
	pb[2]=B("Gao",7.2);
	pb[3]=B("Li",9.4);
	for(int i=0;i<4;i++)
	{
		pb[i].GetB(s,d);
		cout<<s<<','<<d<<endl;
	}
	delete []pb;
}