mathopra.cpp

高永强 全C编程源码 清华大学出版社 2002年六月第一版

//这个程序在本书所带软盘中，文件名为MATHOPRA.CPP
//这个程序演示各种基本算术运算。

#include <iostream.h>

void main(void)
{
	int int1, int2;
	float float1, float2, float3;
	char ch1,ch2;

	int1 = 4 * 2;
	int2 = int1 / 3;			//int2得到8/3的整数部分，即2

	float1 = 3.1415;
	float2 = float1*2.0;
	float2 = float2/1.5 - 2.2;	//首先进行右边的计算，即6.2830/1.5 - 2.0，再将结果赋予float2
	float3 = float1 + float2;

	ch1 = 'a';
	ch2 = ch1 + 1;				//将ch1的ASCII代码97与1相加，然后将结果98赋予ch2

	cout << "int1 = " << int1 << "   int2 = " << int2 << endl;
	cout << "float1 = " << float1 << "  float2 = " << float2 << "  float3 = " << float3 << endl;
	cout << "ch1 = " << ch1 << "  ch2 = " << ch2 << endl;

	cout << "int1 * int2 = " << int1 * int2 << endl;	//在输出语句中也可做算术运算
	cout << "float1/float2 + float3 = " << float1/float2+float3 << endl;
}