l4_13.cpp

《C++程序设计教程》电子教案及例题源码

#include <iostream.h> 
int max(int x, int y); 
double power(double x=10.0, int n=2); 
void main() 
{ 
	cout << power(3,5) << endl; 
	cout << power(3) << endl; 
	cout << power() << endl; 
} 
 
double power(double x, int n) 
{ 
	int i;
	double s=1.0;
	for(i=1; i<=n; i++)
	{
		s *= x;
	}
	return s; 
}