unarytst.cpp

来自「c语言教程源码」· C++ 代码 · 共 32 行

//这个程序在本书所带软盘中，文件名为UNARYTST.CPP
//这个程序将演示基本前缀和后缀增值、减值运算。

#include <iostream.h>

void main(void)
{
	int num1, num2;
	float float1, float2;

	num1 = 1;
	num1++;
	++num1;
	num2 = num1;
	--num2;
	num2--;

	cout << "num1 = " << num1 << "   num2 = " << num2 << endl;
	cout << "++num1 = " << ++num1 << endl;
	cout << "num2-- = " << num2-- << endl;

	float1 = -3.14;
	float1++;
	cout << "float1 = " << float1 << endl;
	++float1;
	cout << "float1 = " << float1 << endl;

	float2 = float1;
	cout << endl << "float2 = " << float2 << endl;
	cout << "--float2 = " << --float2 << endl;
	cout << "++float2 = " << ++float2 << endl;
}