7i.cpp

C/C++程序设计导论（第二版）》程序源文件

#include <iostream.h>
// AverageInput1 ()  Input N values and return average.
//   IN:  N -- the number of values to input and average.
//  ASSUMPTION: at least one value is entered.
float AverageInput1 (int N)
{	float sum = 0.0, value;

	int count = 0;					// 1. initialize counter to 0
	while (count < N)					// 2. test count against limit
	{	cin >> value;
		sum = sum + value;
		count = count + 1;				// 3. update counter
	}
	return (sum / count);
}
void main ()
 { cout << AverageInput1 (5);
 }