c18a.cpp

此文件可以能帮你求体积

// c18a.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

#include <iostream.h>
#include <time.h>

inline int comp1( int a, int b ) { return (a>b)?a:b; }
int comp2( int a, int b ) { return (a>b)?a:b; }

int main(int argc, char* argv[])
{
	double t1, t2;
	t1 = (double) clock();
	for ( int m = 0; m < 10000; m++ )
		for ( int n = 0; n < 10000; n++ )
			comp1(m ,n);
	t2 = (double)clock();
	cout << "调用内联函数运行时间为:\t" << (t2-t1)/CLK_TCK << "秒\n";

	t1 = (double)clock();
	for ( m = 0; m < 10000; m++ )
		for( int n = 0; n < 10000; n++ )
			comp2(m, n);
	t2 = (double)clock();
	cout << "调用外部函数运行时间为:\t" << (t2-t1)/CLK_TCK << "秒\n";

	t1 = (double)clock();
	for ( m = 0; m < 10000; m++ )
		for( int n = 0; n < 10000; n++ )
			(m>n)?m:n;
	t2 = (double)clock();
	cout << "直接运行时间为:\t" << (t2-t1)/CLK_TCK << "秒\n";

	return 0;
}