program_4_12.cpp

c++程序设计讲义 cppprograming 含源码

// Program 4.12: Simple visualization tool
#include <iostream>
#include <rect.h>
using namespace std;
int ApiMain() {
	const float Unit = 0.25;
	cout << "Enter size of data set: ";
	int n;
	cin >> n;
	SimpleWindow W("Data set display", n+2, 10);
	W.Open();
	for (float x=1; x<=n; ++x) {
		cout << "Enter data value (n): ";
		float y;
		cin >> y;
		RectangleShape Point(W, x, y, Blue, Unit, Unit);
		Point.Draw();
	}
	return 0;
}