cast2.cpp

C++的常用算法

//这个程序在本书所带软盘中，文件名为CAST2.CPP
//这个程序将演示如何利用造型方法对数据进行类型转换。

#include <iostream.h>

void main(void)
{
	int score1 = 70, score2 = 75, score3 = 82;
	float average;
	int mice;
	int feed_time1 = 3, feed_time2 = 4;
	float weight = 8.35;
	float front_legs, back_legs;

	average = (score1 + score2 + score3) / (float) 3;	//将整数3转换为浮点数3.0
	cout << "avearge: " << average << endl;

	front_legs = weight * feed_time1;			//系统自动进行数据类型转换
	back_legs = weight * feed_time2;

	mice = (int)(front_legs + back_legs) / 4;	//将括号中的浮点变量转换为整数型
	cout << "mice number: " << mice << endl;
}