#include <iostream>
using namespace std;
class Coordinate{
private:
float Coord[100][100];
int times;
public:
Coordinate() //无参数的构造函数
{
times = 2;//坐标值的组数
cout << "Coordinate construction1 called!" << endl;
}
Coordinate(int times1) //有一个整形参数的构造函数
{
times = times1;
cout << "Coordinate construction2 called!" << endl;
}
~Coordinate() //析构函数
{
cout << "Coordinate construction called!" << endl;
}
void InputCoord()
{
for (int i = 0; i < times; i++)
{
cout << "Please Input x:" << endl;
cin >> Coord[i][0];
cout << "Please Input y:" << endl;
cin >> Coord[i][1];
}
}
void ShowCoord()
{
cout << "The coord is: " << endl;
for (int i = 0; i < times; i++)
{
cout << "("<<Coord[i][0] << "," << Coord[i][1] << ")" << endl;
}
}
void ShowAvgCoord()
{
float avgx = 0;
float avgy = 0;
for (int i = 0; i < times; i++)
{
avgx = avgx + Coord[i][0];
avgy = avgy + Coord[i][1];
}
avgx = avgx / times;
avgy = avgy / times;
cout << "The AVG coord is:" << endl;
cout << "(" << avgx << "," << avgy << ")" << endl;
}
};
int main()
{
Coordinate A;
A.InputCoord();
A.ShowCoord();
A.ShowAvgCoord();
return 0;
}
运行结果如下
其中析构函数的运行顺序为:析构函数在程序执行完return 0;后执行,用于释放分配给对象的内存空间
在main()函数中加入以下代码:
Coordinate y(5);
y.InputCoord();
y.ShowCoord();
y.ShowAvgCoord();
return 0;
其运行结果如下