2vii.cpp

《C/C＋＋程序设计导论（第二版）》一书的程序源文件

// SUM.CPP A program to sum a list of positive values
#include <iostream.h>
void main()
{	float number, sum;
	sum=0.0;
	cout << "enter a list of pos. values (ending with -1.0): ";
	cin >> number;
	while (number > 0.0)
	{	sum = sum + number;
		cin >> number;
	}
	cout << " sum is " << sum << endl;
}