#include
using namespace std;
class Coordinate {
public:
Coordinate()
{
times = 2;
cout << “Coordinate construction1 called!” << endl;
}
Coordinate(int times1)
{
times = times1;
cout << “Coordinate construction2 called!” << endl;
}
~Coordinate()
{
cout << “Coordinate destruction called!” << endl;
}
void InputCoord()
{
for (int i = 0; i < times; i++)
{
cout << “Please Input x;” << endl;
cin >> Coord[i][1];
cout << “Please Input y:” << endl;
cin >> Coord[i][2];
}
}
void ShowCoord()
{
cout << “The coord is:” << endl;
for (int i = 0; i < times; i++)
{
cout << “(” << Coord[i][1] << “,” << Coord[i][2] << “)” << endl;
}
}
void ShowAvgCoord()
{
float avgx = 0;
float avgy = 0;
for (int i = 0; i < times; i++)
{
avgx = avgx + Coord[i][1];
avgy = avgy + Coord[i][2];
}avgx = avgx / times;
avgy = avgy / times;
cout << “The AVG coord is:” << endl;
cout << “(” << avgx << “,” << avgy << “)” << endl;
}
private:
float Coord[100][100];
int times;
};
int main()
{ Coordinate y(5);
y.InputCoord();
y.ShowCoord();
y.ShowAvgCoord();
return 0;
}
结论：本此上机实验中用到了类与对象，构造函数和析构函数。相比较于C语言结构体,我发现类与其相似却又存在不同，主要体现在
①类中可以有数据成员和函数成员,结构体只能有数据成员。
②类中成员可以是私有的,结构体中的成员一般是公有的，可以被随意修改和访问。
