game_stats2.cpp

来自「the source of dev_c++ most of them for 」· C++ 代码 · 共 46 行

// Game Stats 2.0
// Demonstrates arithmetic operations with variables

#include <iostream>
using namespace std;

int main()
{

	unsigned int score = 5000;
	cout << "score: " << score << endl;

	//altering the value of a variable
	score = score + 100;
	cout << "score: " << score << endl;

	//combined assignment operator
	score += 100;
	cout << "score: " << score << endl;

	//increment operators
	int lives = 3;
	++lives;
	cout << "lives: "   << lives << endl;

	lives = 3;
	lives++;
	cout << "lives: "   << lives << endl;

	lives = 3;
	int bonus = ++lives * 10;
	cout << "lives, bonus = " << lives << ", " << bonus << endl;

	lives = 3;
	bonus = lives++ * 10;
	cout << "lives, bonus = " << lives << ", " << bonus << endl;

	//integer wrap around
	score = 4294967295;
	cout << "\nscore: " << score << endl;
	++score;
	cout << "score: "   << score << endl;

	return 0;
}