2iv.cpp

C/C++程序设计导论（第二版）》程序源文件

// CALCVOL2.CPP Calculate sphere volumes with a user-
// 	controlled indefinite loop.
#include <iostream.h>
void main()
{	float radius, volume;
	cout << "enter radius values: ";
	cin >> radius;
	while (radius > 0.0)
	{	volume = (4.0 / 3.0) * radius * radius * radius * 3.14;
		cout << "the volume is " << volume << endl;
		cin >> radius;
	}
}